Cervelo

Haul Ass, Not Cargo In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT. In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

P5 is a contre la montre catalyst. It’s made for one thing—helping you go as fast as possible between Point A and Point B. As at home on the Big Island as it is in a race-critical time trial at the Tour de France, the P5 enables exceptional performances. The past decade of elite road racing has shown the importance of being able to deliver a strong time trial late in a Grand Tour, and the P5 was a key part of Team Jumbo-Visma’s Giro d’Italia and Tour de France wins in 2023. On the new bike, we focused on creating a fast platform that could be made faster with the latest wheels and cutting-edge fit adaptations. There’s room for a 34mm tire on wide wheels, which improve aerodynamics and reduce rolling resistance. The basebar is lower to reduce CdA but possible stack has increased, and the extensions can now be adjusted between 0 and 30 degrees in five-millimeter increments. For triathletes, we include a variety of storage options, because half the battle is taking in sufficient calories to deliver a strong marathon. Also new on this bike? A size 61 to help all of our tall friends achieve a better fit.

The R5 is legendary. From the limits-shattering R5CA to Wout van Aert’s winning day on Mont Ventoux, R5 has been part of Cervelo’s story for over two decades. This all-new R5 is an incredibly light (5.97kg in RED and Dura-Ace builds) road bike that’s also stiff enough to compete at the highest levels of professional cycling—as Pauline Ferrand-Prevot proved when she rode it to victory at this summer’s Tour de France Femmes. It’s easy enough to make a light bike, but to make a light bike that’s stiff enough to accelerate quickly and transfer power from the sport’s biggest motors? That’s another challenge entirely. R5 is the bike for big days in the high mountains of the Tour de France, and the punishingly steep climbs of the Vuelta a Espana. Bikes built for the mountains must not only accelerate rapidly and climb exceptionally, but descend confidently and predictably. While the UCI mandates a minimum weight of 6.8kg, those of us in the ‘mere mortal’ category will benefit from having the lightest road bike on the market.

Haul Ass, Not Cargo In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT. In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

On the fringes of cycling and triathlon, already endurance-oriented sports, there are athletes pushing their bodies and equipment to the limit. Ultra-distance, but ultra-fast. We call these Big, Stupid Rides, and since the introduction of the Caledonia in 2020, athletes around the world have been exploring just how big and just how stupid those rides can be. These athletes reach for the Caledonia-5. It’s built to handle long-distance, high-speed racing—with fit and handling geared toward comfort, but without sacrificing the Cervelo race bike feeling. For the new Caledonia-5, we focused on improvements that would be meaningful for the people pushing it to its limits. The biggest thing you’ll notice is the addition of the in-frame storage first seen on P-Series. This isn’t designed to fit a burrito—there’s only room for a small multi-tool, tube, and a CO2 canister. Then we looked to comfort: The seat stays are dropped, similar to Aspero, which makes that rear triangle more acute, and more vertically flexible. At the same time, there’s a bit more downtube stiffness to maintain that pro-level responsiveness Caledonia is known for. You can still stuff some big tires (36mm) in there, and every bike comes with fender mounts. Like all Cervélos, Caledonia-5 is UCI approved, and carries a lifetime warranty. We make race bikes, and we make them to last.

Caledonia doesn’t fit in a box nicely, and we like it that way. It was conceived on our Thursday night rides—routes that often play fast and loose with ‘road ride.’ Modern road riders are looking for bikes to handle long-distance, high pace, no limits, and offer maximum fun—the Caledonia delivers performance, comfort, and speed. Oh, and you can fit a 34mm tire in there. Or 31mm with fenders.

Rouvida gets you to fast, well, faster. Sleekly designed around the Fazua Ride60 motor, Rouvida delivers 60nM of torque paired to a 430wH battery, and assists you all the way up to 28mph—pro peloton speeds on the road, and edge-of-control-two-wheel-drifts off-road. That’s right, Rouvida comes in two configurations: road and gravel. We designed some clever interchangeable dropouts that significantly alter the geometry of the bike, so the road bike feels like a road bike, and the gravel bike feels like a gravel bike. No compromises, just speed. Rouvida is not available in Canada or Australia at this time, but we are working on navigating regulations in each region.

Rouvida gets you to fast, well, faster. Sleekly designed around the Fazua Ride60 motor, Rouvida delivers 60nM of torque paired to a 430wH battery, and assists you all the way up to 28mph—pro peloton speeds on the road, and edge-of-control-two-wheel-drifts off-road. That’s right, Rouvida comes in two configurations: road and gravel. We designed some clever interchangeable dropouts that significantly alter the geometry of the bike, so the road bike feels like a road bike, and the gravel bike feels like a gravel bike. No compromises, just speed. Rouvida is not available in Canada or Australia at this time, but we are working on navigating regulations in each region.

The R5 is legendary. From the limits-shattering R5CA to Wout van Aert’s winning day on Mont Ventoux, R5 has been part of Cervelo’s story for over two decades. This all-new R5 is an incredibly light (5.97kg in RED and Dura-Ace builds) road bike that’s also stiff enough to compete at the highest levels of professional cycling—as Pauline Ferrand-Prevot proved when she rode it to victory at this summer’s Tour de France Femmes. It’s easy enough to make a light bike, but to make a light bike that’s stiff enough to accelerate quickly and transfer power from the sport’s biggest motors? That’s another challenge entirely. R5 is the bike for big days in the high mountains of the Tour de France, and the punishingly steep climbs of the Vuelta a Espana. Bikes built for the mountains must not only accelerate rapidly and climb exceptionally, but descend confidently and predictably. While the UCI mandates a minimum weight of 6.8kg, those of us in the ‘mere mortal’ category will benefit from having the lightest road bike on the market.

For Your Big, Stupid Rides On the fringes of cycling and triathlon, already endurance-oriented sports, there are athletes pushing their bodies and equipment to the limit. Ultra-distance, but ultra-fast. We call these Big, Stupid Rides, and since the introduction of the Caledonia in 2020, athletes around the world have been exploring just how big and just how stupid those rides can be. These athletes reach for the Caledonia-5. It’s built to handle long-distance, high-speed racing—with fit and handling geared toward comfort, but without sacrificing the Cervelo race bike feeling. For the new Caledonia-5, we focused on improvements that would be meaningful for the people pushing it to its limits. The biggest thing you’ll notice is the addition of the in-frame storage first seen on P-Series. This isn’t designed to fit a burrito—there’s only room for a small multi-tool, tube, and a CO2 canister. Then we looked to comfort: The seat stays are dropped, similar to Aspero, which makes that rear triangle more acute, and more vertically flexible. At the same time, there’s a bit more downtube stiffness to maintain that pro-level responsiveness Caledonia is known for. You can still stuff some big tires (36mm) in there, and every bike comes with fender mounts. Like all Cervélos, Caledonia-5 is UCI approved, and carries a lifetime warranty. We make race bikes, and we make them to last.

The R5 is legendary. From the limits-shattering R5CA to Wout van Aert’s winning day on Mont Ventoux, R5 has been part of Cervelo’s story for over two decades. This all-new R5 is an incredibly light (5.97kg in RED and Dura-Ace builds) road bike that’s also stiff enough to compete at the highest levels of professional cycling—as Pauline Ferrand-Prevot proved when she rode it to victory at this summer’s Tour de France Femmes. It’s easy enough to make a light bike, but to make a light bike that’s stiff enough to accelerate quickly and transfer power from the sport’s biggest motors? That’s another challenge entirely. R5 is the bike for big days in the high mountains of the Tour de France, and the punishingly steep climbs of the Vuelta a Espana. Bikes built for the mountains must not only accelerate rapidly and climb exceptionally, but descend confidently and predictably. While the UCI mandates a minimum weight of 6.8kg, those of us in the ‘mere mortal’ category will benefit from having the lightest road bike on the market.

Haul Ass, Not Cargo In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT. In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

Take one look at the all-new P-Series, and you’ll notice a striking resemblance to our flagship TT bike, the P5. P-Series benefits from all the racing, wind tunnel time, and testing required to make the P5 the fastest TT bike in the World Tour, but adds a couple features that make it a perfect companion for a triathlon of any distance. P-Series uses a fork with a D-shaped steerer tube and round stem interface. This means you can use whichever basebar and extensions you prefer, and make changes if your fit or preference changes. It’s also significantly more adaptable if you have very specific fit requirements. Increased wheel and tire clearance, reduced aerodynamic drag, neater cable routing, and Cervelo’s first internal frame storage all add up to create the bike of choice for those looking to make the most of the time between T1 and T2.

The R5 is legendary. From the limits-shattering R5CA to Wout van Aert’s winning day on Mont Ventoux, R5 has been part of Cervelo’s story for over two decades. This all-new R5 is an incredibly light (5.97kg in RED and Dura-Ace builds) road bike that’s also stiff enough to compete at the highest levels of professional cycling—as Pauline Ferrand-Prevot proved when she rode it to victory at this summer’s Tour de France Femmes. It’s easy enough to make a light bike, but to make a light bike that’s stiff enough to accelerate quickly and transfer power from the sport’s biggest motors? That’s another challenge entirely. R5 is the bike for big days in the high mountains of the Tour de France, and the punishingly steep climbs of the Vuelta a Espana. Bikes built for the mountains must not only accelerate rapidly and climb exceptionally, but descend confidently and predictably. While the UCI mandates a minimum weight of 6.8kg, those of us in the ‘mere mortal’ category will benefit from having the lightest road bike on the market.

Haul Ass, Not Cargo In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT. In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile.

P5 is a contre la montre catalyst. It’s made for one thing—helping you go as fast as possible between Point A and Point B. As at home on the Big Island as it is in a race-critical time trial at the Tour de France, the P5 enables exceptional performances. The past decade of elite road racing has shown the importance of being able to deliver a strong time trial late in a Grand Tour, and the P5 was a key part of Team Jumbo-Visma’s Giro d’Italia and Tour de France wins in 2023. On the new bike, we focused on creating a fast platform that could be made faster with the latest wheels and cutting-edge fit adaptations. There’s room for a 34mm tire on wide wheels, which improve aerodynamics and reduce rolling resistance. The basebar is lower to reduce CdA but possible stack has increased, and the extensions can now be adjusted between 0 and 30 degrees in five-millimeter increments. For triathletes, we include a variety of storage options, because half the battle is taking in sufficient calories to deliver a strong marathon. Also new on this bike? A size 61 to help all of our tall friends achieve a better fit.

Rouvida gets you to fast, well, faster. Sleekly designed around the Fazua Ride60 motor, Rouvida delivers 60nM of torque paired to a 430wH battery, and assists you all the way up to 28mph—pro peloton speeds on the road, and edge-of-control-two-wheel-drifts off-road. That’s right, Rouvida comes in two configurations: road and gravel. We designed some clever interchangeable dropouts that significantly alter the geometry of the bike, so the road bike feels like a road bike, and the gravel bike feels like a gravel bike. No compromises, just speed. Rouvida is not available in Canada or Australia at this time, but we are working on navigating regulations in each region.

On the fringes of cycling and triathlon, already endurance-oriented sports, there are athletes pushing their bodies and equipment to the limit. Ultra-distance, but ultra-fast. We call these Big, Stupid Rides, and since the introduction of the Caledonia in 2020, athletes around the world have been exploring just how big and just how stupid those rides can be. These athletes reach for the Caledonia-5. It’s built to handle long-distance, high-speed racing—with fit and handling geared toward comfort, but without sacrificing the Cervelo race bike feeling. For the new Caledonia-5, we focused on improvements that would be meaningful for the people pushing it to its limits. The biggest thing you’ll notice is the addition of the in-frame storage first seen on P-Series. This isn’t designed to fit a burrito—there’s only room for a small multi-tool, tube, and a CO2 canister. Then we looked to comfort: The seat stays are dropped, similar to Aspero, which makes that rear triangle more acute, and more vertically flexible. At the same time, there’s a bit more downtube stiffness to maintain that pro-level responsiveness Caledonia is known for. You can still stuff some big tires (36mm) in there, and every bike comes with fender mounts. Like all Cervélos, Caledonia-5 is UCI approved, and carries a lifetime warranty. We make race bikes, and we make them to last.

A Bike For the Way Riders Ride Caledonia doesn’t fit in a box nicely, and we like it that way. It was conceived on our Thursday night rides—routes that often play fast and loose with ‘road ride.’ Modern road riders are looking for bikes to handle long-distance, high pace, no limits, and offer maximum fun—the Caledonia delivers performance, comfort, and speed. Oh, and you can fit a 34mm tire in there. Or 31mm with fenders.

For Your Big, Stupid Rides On the fringes of cycling and triathlon, already endurance-oriented sports, there are athletes pushing their bodies and equipment to the limit. Ultra-distance, but ultra-fast. We call these Big, Stupid Rides, and since the introduction of the Caledonia in 2020, athletes around the world have been exploring just how big and just how stupid those rides can be. These athletes reach for the Caledonia-5. It’s built to handle long-distance, high-speed racing—with fit and handling geared toward comfort, but without sacrificing the Cervelo race bike feeling. For the new Caledonia-5, we focused on improvements that would be meaningful for the people pushing it to its limits. The biggest thing you’ll notice is the addition of the in-frame storage first seen on P-Series. This isn’t designed to fit a burrito—there’s only room for a small multi-tool, tube, and a CO2 canister. Then we looked to comfort: The seat stays are dropped, similar to Aspero, which makes that rear triangle more acute, and more vertically flexible. At the same time, there’s a bit more downtube stiffness to maintain that pro-level responsiveness Caledonia is known for. You can still stuff some big tires (36mm) in there, and every bike comes with fender mounts. Like all Cervélos, Caledonia-5 is UCI approved, and carries a lifetime warranty. We make race bikes, and we make them to last.

P5 is a contre la montre catalyst. It’s made for one thing—helping you go as fast as possible between Point A and Point B. As at home on the Big Island as it is in a race-critical time trial at the Tour de France, the P5 enables exceptional performances. The past decade of elite road racing has shown the importance of being able to deliver a strong time trial late in a Grand Tour, and the P5 was a key part of Team Jumbo-Visma’s Giro d’Italia and Tour de France wins in 2023. On the new bike, we focused on creating a fast platform that could be made faster with the latest wheels and cutting-edge fit adaptations. There’s room for a 34mm tire on wide wheels, which improve aerodynamics and reduce rolling resistance. The basebar is lower to reduce CdA but possible stack has increased, and the extensions can now be adjusted between 0 and 30 degrees in five-millimeter increments. For triathletes, we include a variety of storage options, because half the battle is taking in sufficient calories to deliver a strong marathon. Also new on this bike? A size 61 to help all of our tall friends achieve a better fit.

The Cervélo Caledonia 105 AXS is a modern endurance road bike that’s built to thrive in Chicago’s dynamic cycling landscape. With its lightweight carbon frame and SRAM 105 AXS wireless electronic shifting, it delivers crisp, reliable performance whether you're cruising the Lakefront Trail or tackling longer rides through the suburbs. Designed for comfort and speed, the Caledonia’s geometry and generous tire clearance make it ideal for navigating city streets, rough pavement, and unpredictable Midwest weather. This bike is perfect for riders who want cutting-edge tech and all-day rideability in the Windy City.

The S5 is a sport-wide benchmark for speed and aerodynamic efficiency—with the race results to back it up. From Wout van Aert winning the Green Jersey by the biggest margin of victory in modern history, to Simon Yates riding himself into the maglia rosa, S5’s iconic V-stem and bayonet fork are a fixture at the front of the professional peloton. The new S5 builds on that legacy of speed by getting even faster. The new bike is over 6 Watts faster than its predecessor, 124 grams lighter, and retains the handling, poise, and stability that riders everywhere love. The biggest changes are at the front of the bike, where the most significant aerodynamic performance comes from. The fork legs and head tube got quite a bit deeper, and the all-new, one-piece handlebar/stem builds on the original V-stem concept—and gets even faster. Cervélo and Reserve co-developed the new Reserve 57|64 Turbulent Aero wheels specifically for use in the S5 frame, completing the aerodynamic system. Aero Aero Aero The new S5 is 6.3 Watts faster than its predecessor. These gains are realized primarily at the front end of the bike, but the integration of the asymmetric profiles of the seat tube and rear wheel are a significant source as well. Cervélo has long been the aerodynamic leader in the peloton, and we’re confident that the new S5 is at least 5 Watts faster than the bikes of our competitors. One-Piece Handlebar/Stem HB19 uses our “Plus-Four” concept, meaning the dimension at the hoods is 4cm narrower than in the drops (e.g. 38cm/42cm). This approach helps riders maintain a more aero body position while their hands are on the hoods, and provides stability in the drops for descending and sprinting. All bar sizes are UCI-legal, even in light of the most recent regulations change. Not just faster. Lighter, too. Despite an increase in surface area, the new S5 is 124 grams lighter than its predecessor. While the increase in fork and head tube depth added weight, we optimized the layup and hardware to make the system lighter. Reserve 57|64 Designed for S5: The new Reserve 57|64 wheelset was co-developed by Reserve and Cervélo, and designed for use in the new S5. The rear wheel’s asymmetry matches the seat tube, ensuring air flows smoothly over both. The new wheelset is 3 Watts faster than the 52|63 wheels, and weighs the same.

The Cervélo Soloist 105 Race is a sleek, performance-driven road bike designed for riders who crave speed and versatility. It blends aerodynamic efficiency with lightweight construction, making it ideal for both competitive racing and spirited weekend rides. Its race-ready geometry ensures responsive handling, while the Shimano 105 groupset delivers reliable shifting and braking performance. Available in striking colors like Dark Slate and Serpentine, the Soloist 105 Race is a modern nod to Cervélo’s heritage of innovation and speed.

Take one look at the all-new P-Series, and you’ll notice a striking resemblance to our flagship TT bike, the P5. P-Series benefits from all the racing, wind tunnel time, and testing required to make the P5 the fastest TT bike in the World Tour, but adds a couple features that make it a perfect companion for a triathlon of any distance. P-Series uses a fork with a D-shaped steerer tube and round stem interface. This means you can use whichever basebar and extensions you prefer, and make changes if your fit or preference changes. It’s also significantly more adaptable if you have very specific fit requirements. Increased wheel and tire clearance, reduced aerodynamic drag, neater cable routing, and Cervelo’s first internal frame storage all add up to create the bike of choice for those looking to make the most of the time between T1 and T2.

The Cervélo P 105 Race is a triathlon-focused speed machine that’s perfectly suited for Chicago’s competitive cycling and racing scene. Engineered with aerodynamic precision and a lightweight carbon frame, it’s built to slice through wind along the Lakefront Trail or dominate time trials in the suburbs. Outfitted with the Shimano 105 groupset, the P 105 Race delivers smooth, efficient power transfer and reliable shifting—ideal for long-distance efforts and race-day performance. Whether you're training for the Chicago Triathlon or just chasing personal bests, this bike offers the speed and stability you need. The P 105 Race is your ticket to podium-worthy rides in the Windy City.

The Cervélo Soloist Rival is a race-inspired road bike that’s perfectly suited for the fast-paced cycling culture of Chicago. With its aerodynamic carbon frame and SRAM Rival groupset, it delivers precision shifting and powerful braking—ideal for navigating the city’s bustling streets or hammering down the Lakefront Trail. Whether you're climbing the gentle inclines of the North Branch Trail or sprinting through urban corridors, the Soloist Rival offers the speed, control, and comfort that Chicago riders demand.

A Bike For the Way Riders Ride Caledonia doesn’t fit in a box nicely, and we like it that way. It was conceived on our Thursday night rides—routes that often play fast and loose with ‘road ride.’ Modern road riders are looking for bikes to handle long-distance, high pace, no limits, and offer maximum fun—the Caledonia delivers performance, comfort, and speed. Oh, and you can fit a 34mm tire in there. Or 31mm with fenders.

HAUL ASS, NOT CARGO In 2019, Áspero took the gravel world by storm, heralding a “new era of speed in gravel.” Fun, but flat out. The new Áspero remains true to its original brief, but with some improvements: a threaded BB shell, neater cable routing, and a UDH-compatible derailleur hanger for those who want to use SRAM’s Transmission drivetrains. And it’s more aero, of course. In the case of Áspero, aerodynamic performance is less about pure speed as a result of drag reduction, and more about conservation of energy. After a big day in a headwind, the three watts saved over the previous Aspero might add up to one less energy gel your stomach has to digest—WORTH IT. In addition to the drag reduction, we also dropped the seat stays to give a bit more compliance out back, and reduced front-end stiffness slightly to make the last hours of a long race less painful. Between those dropped seat stays, we added in a bit more clearance for mud, too, taking what we learned from R5-CX (and the Unbound mudfest in 2023). It’s a lot of seemingly small improvements, but they add up to a lot. The result is a bike that feels a lot like the original Áspero, but is faster, more comfortable, and more versatile. THREADED BOTTOM BRACKET Aspero uses the asymmetrical T47a threaded bottom bracket we pioneered on R5-CX. It’s a simple, rider-serviceable interface that allows us to deliver the benefits of BBRight in a more user-friendly form. UNIVERSAL DERAILLEUR HANGAR We used SRAM’s Universal Derailleur Hanger (UDH) standard on the new Aspero. It’s ideal if you want to live your best ‘business in the front, party in the back’ life with one of SRAM’s Transmission drivetrains today, and ensures compatibility for future drivetrain developments. INTERNAL CABLE ROUTING Aspero shares the same bearing dimensions as R5, Soloist, R5-CX, and Caledonia, which means you can use any combination of bearing caps and stems. Want a super-racy, fully-internal look? Grab the ST31 and HB13 from R5.