Lengths: 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 690 g.

Ultra Torque™ external cups sold separately.

The asymmetrical toothing of the innermost chainring and the eight pins on the outside render shifting immediate.

We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.

Lengths: 170, 172.5 or 175 mm
Chainrings: 34 x 50
Weight: 640 g.

Record 11 external cups sold separately.

The use of USB™ (Ultra Smooth) Bearings ensures very low friction and enhanced performance. Anticorrosion treatment for the cups of the Ultra-Torque™ system.

We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.

Lengths: 170, 172.5, 175mm
Chainrings: 39 x 53
Weight: 650 g.

Record 11 external cups sold separately.

The use of USB™ (Ultra Smooth) Bearings ensures very low friction and enhanced performance. Anticorrosion treatment for the cups of the Ultra-Torque™ system.

We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.

Lengths: 170, 172.5 or 175 mm
Chainrings: 34 x 50
Weight: 640 g.

Record 11 external cups sold separately.

The use of unidirectional and multidirectional carbon fibre in the Ultra-Hollow™ structure gives the Super Record-11 compact crankset rigidity and lightness. ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™ technology ensures precision and speed when shifting.

We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.

Lengths: 170, 172.5, 175, 177.5 or 180mm
Chainrings: 39 x 53
Weight: 646 g.

Record 11 external cups sold separately.

The use of unidirectional and multidirectional carbon fibre in the Ultra-Hollow™ structure gives the Super Record-11 crankset rigidity and lightness. ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™ technology ensures precision and speed when shifting.

We have redesigned the tooth profile to optimize 11-speed operation. Our studies led to the ESP (Enhanced Shifting Performance) ACTUATION SYSTEM™, specially developed to improve shifting timing. Thanks to the new gear design, there are now two diametrically opposed sectors specialized for upshifting, and two downshifting sectors, also diametrically opposed. This solution makes instantaneous shifting possible both up and down. The darker colour of the gears is the result of a new anodization system which confers greater resistance to wear and saline corrosion.

Lengths: 165, 170, 172.5 or 175mm
Chainrings: 39 x 53T
Weight: 699 g. (794 g. w/bottom bracket)

External BB cups are sold separately

You'll love the super-stiff, premium-shifting platform of the lightweight Shimano Ultegra FC-6700 crankset. The crankset features Hollowglide technology; a hollow, wide-profile outer chainring that saves weight and increases rigidity for optimal power transfer and improved shifting. Super-smooth outboard bearings are spread as far apart as possible to eliminate axle flex. The bearings primarily carry radial loads resulting in lower overall friction and drag. This crankset requires external BB cups that are sold separately.

Lengths: 165, 170, 172.5 or 175mm
Chainrings: 34 x 50T
Weight: 690 g. (785 g. w/bottom bracket)

External BB cups are sold separately

You'll love the super-stiff, premium-shifting platform of the lightweight Shimano Ultegra FC-6700 compact crankset. The crankset features Hollowglide technology; a hollow, wide-profile outer chainring that saves weight and increases rigidity for optimal power transfer and improved shifting. Super-smooth outboard bearings are spread as far apart as possible to eliminate axle flex. The bearings primarily carry radial loads resulting in lower overall friction and drag. This crankset requires external BB cups that are sold separately.

Lengths: 165, 170, 172.5 or 175mm
Chainrings: 30 x 39 x 52T
Weight: 810 g. (906 g. w/bottom bracket)

You'll love the super-stiff, premium-shifting platform of the lightweight Shimano Ultegra FC-6703 triple crankset. The crankset features Hollowglide technology; a hollow, wide-profile outer chainring that saves weight and increases rigidity for optimal power transfer and improved shifting. Super-smooth outboard bearings are spread as far apart as possible to eliminate axle flex. The bearings primarily carry radial loads resulting in lower overall friction and drag. This crankset requires external BB cups that are sold separately.

The iconic Hollowtech II hollow forged crank has always been a benchmark for strength to weight performance characteristics. Lengths: 172.5 or 175mm
Chainrings: 39 x 53
Weight: 725 g.w/ Bottom Bracket

Dura Ace 7900 Bottom Bracket sold separately

The perfect platform for a crank intended to be used at the highest echelon of competition. Combined with a hollow outer chainring the crankset is 20% stiffer for optimal power transfer while still saving 15 grams. Other changes include redesigned chainring teeth for better contact and power transfer. Improved bottom bracket seals further reduce contamination and friction.

• Thin-walled crank: forged aluminum crank saves weight
• Hollowchainring: saves weight while maintaining strength
• New teeth design: for better chain contact and high efficiency power transfer

The iconic Hollowtech II hollow forged crank has always been a benchmark for strength to weight performance characteristics. Lengths: 172.5 or 175mm
Chainrings: 34 x 50
Weight: 665 g.w/ Bottom Bracket

Dura Ace 7900 Bottom Bracket sold separately

The perfect platform for a crank intended to be used at the highest echelon of competition. Combined with a hollow outer chainring the crankset is 20% stiffer for optimal power transfer while still saving 15 grams. Other changes include redesigned chainring teeth for better contact and power transfer. Improved bottom bracket seals further reduce contamination and friction.

• Thin-walled crank: forged aluminum crank saves weight
• Hollowchainring: saves weight while maintaining strength
• New teeth design: for better chain contact and high efficiency power transfer

Lengths: 170, 172.5 or175mm
Chainrings: 39 x 53
Weight: 709 g. with Bottom Bracket

The Dura Ace FC-7800C carbon crank uses an aluminum hollow-core base that resembles an aluminum Hollowtech II crank design. The difference is that the aluminum is significantly thinner because a carbon fiber laminate layer completes the construction to achieve the uncompromising Dura Ace level rigidity and strength at a weight lighter than all aluminum construction. Saves over 30 grams from the standard aluminum Dura Ace crank/bottom bracket assembly and actually increases rigidity by 10%! The bottom bracket and left arm construction is the same design as the latest version of XTR allowing for a lighter bottom bracket assembly and more precise adjustment of the bearings. 709 g. with bottom bracket. 172.5 length.

Lengths: 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 740 g. (with BB)

Bottom bracket sold separately.

Putting the power to the pavement: the stiff, smooth, and strong SRAM Red Crankset is poised to dominate. Fatigue, flex, and friction, enemies all, and they'll rob you of speed and performance over both the short and the long hauls. The SRAM Red Crankset does its part to keep them from affecting your ride. The integrated carbon spider's design is lightweight and extremely stiff, allowing for instant, efficient power transfer. Red PowerGlide™ chainrings are designed to professional-grade shift, stiffness, and durability standards.

Lengths: 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 760 g. (with BB)

Bottom bracket sold separately.

Putting the power to the pavement: the stiff, smooth, and strong SRAM Red Crankset is poised to dominate. Fatigue, flex, and friction, enemies all, and they'll rob you of speed and performance over both the short and the long hauls. The SRAM Red Crankset does its part to keep them from affecting your ride. The integrated carbon spider's design is lightweight and extremely stiff, allowing for instant, efficient power transfer. Red PowerGlide™ chainrings are designed to professional-grade shift, stiffness, and durability standards.

Lengths: 170, 172.5, 175mm
Chainrings: 34 x 50
Weight: 798 g. with bottom bracket (670 g. w/o BB)

Bottom bracket sold separately.

Lightweight, strength, and durability come together in the SRAM Force compact crankset, featuring a unidirectional carbon structure with a sleek, race-like profile. The package includes Sram's competition-proven, hard-anodized PowerGlide™ chainrings for long-lasting performance. Integrated carbon-spider construction is light and stiff for greater power transfer with less effort. Exclusive GXP bottom bracket system uses two bicycle specific cartridge bearings and eight seals for a smooth and long lasting ride.

Lengths: 170, 172.5, 175mm
Chainrings: 39 x 53
Weight: 805 g. with bottom bracket (677 g. w/o BB)
Bottom bracket sold separately.

Lightweight, strength, and durability come together in the SRAM Force crankset, featuring a unidirectional carbon structure with a sleek, race-like profile. The package includes Sram's competition-proven, hard-anodized PowerGlide™ chainrings for long-lasting performance. Integrated carbon-spider construction is light and stiff for greater power transfer with less effort.

Lengths: 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 740 g.

BB cups included

The SL-K Light crankset uses FSA's I-Beam construction for some serious weight savings. Manufactured using compression molding and uni-directional carbon fiber, this crank features hollow, oversized monocoque crankarms and spider for super-stiff, no-flex performance. Standard MegaExo stainless steel cartridge bearings. CNC-machined aluminum rings are fitted with alloy Torx bolts. 170, 172.5 or 175mm. Includes English threaded bottom bracket.

Lengths: 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 740 g.

BB cups included

The SL-K Light crankset uses FSA's I-Beam construction for some serious weight savings. Manufactured using compression molding and uni-directional carbon fiber, this crank features hollow, oversized monocoque crankarms and spider for super-stiff, no-flex performance. Standard MegaExo stainless steel cartridge bearings. CNC-machined aluminum rings are fitted with alloy Torx bolts. 170, 172.5 or 175mm. Includes English threaded bottom bracket.

Lengths: 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 740 g.

English BB cups included

Constructed with ultra high-modulus carbon, FSA's K-Force Light uses an exclusive bladder molding process that enables maximum compression of the carbon material for the lowest amount of void area. This yields a hollow form that extends through the I-beam arm and around the spider for high torsional and lateral strength. Ceramic bottom bracket bearings deliver a significant reduction in friction and weight. 110mm pattern, 34/50 chainrings. Available in 170, 172.5 or 175mm. Includes English bottom bracket. 630 grams.

Take a look around the pro peloton and you'll discover that SRM is the training system of choice for many pro teams, and for good reason. Designed for use on your own bike during training sessions and/or competitions, the SRM Wireless Training System measures power output in watts at the exact point where it can be measured best - the transition between the crank and the chain rings. Your output is measured and recorded continuously to provide the most accurate record of your performance throughout the entire session. SRM also captures cadence, heart rate, altitude, temperature, speed and distance data. The SRM PowerControl VI head-unit displays the wirelessly transmitted data in real-time, simultaneously storing it for download. Data is transmitted via ANT+Sport protocol (power and cadence) or via ANT protocol (heart rate and speed). Updated after each crank revolution, the data is saved in intervals. Choose between intervals of 0.5 up to 5 seconds. The memory capacity is enough to store 130 hours of riding data with the intervals set at 1-second.

The SRM Powermeter consists of the crank, chainrings and measuring unit. Located between the crank arm and the chainrings, the measuring unit is a computer-designed torque transducer made of high-strength, specially tempered aluminum. Strain gauge strips, attached to the inside of the Powermeter, deflect when force is applied to the pedals. The material deflection registers the force (torque) created as well as the cadence. These parameters are converted into a digital electrical signal that is transmitted to a sensor on the frame of the bike. The training data can be transmitted to a PC directly after the training session. SRM's powerful software provides graphic representation of your power, speed, cadence, heart rate, time and distance for each session, and stores multiple sessions so you can monitor, analyze, and compare the data as your power increases.

Because the measuring unit is not built into the hub, the lightweight SRM system offers you the flexibility of interchanging your wheels. Training wheels, racing wheels or anything in between, you obtain the same accurate power data. The system includes SRM Powermeter, SRM Powercontrol VI, oversized handlebar clamp, Suunto speed pod, Suunto heart rate chest transmitter, BB-mounted cadence magnet, and new generation charger/download cable. Standard (39/53) . Available as an upgrade on our bike builds and in our build kits.

Take a look around the pro peloton and you'll discover that SRM is the training system of choice for many pro teams, and for good reason. Designed for use on your own bike during training sessions and/or competitions, the SRM Wireless Training System measures power output in watts at the exact point where it can be measured best - the transition between the crank and the chain rings. Your output is measured and recorded continuously to provide the most accurate record of your performance throughout the entire session. SRM also captures cadence, heart rate, altitude, temperature, speed and distance data. The SRM PowerControl VI head-unit displays the wirelessly transmitted data in real-time, simultaneously storing it for download. Data is transmitted via ANT+Sport protocol (power and cadence) or via ANT protocol (heart rate and speed). Updated after each crank revolution, the data is saved in intervals. Choose between intervals of 0.5 up to 5 seconds. The memory capacity is enough to store 130 hours of riding data with the intervals set at 1-second.

The SRM Powermeter consists of the crank, chainrings and measuring unit. Located between the crank arm and the chainrings, the measuring unit is a computer-designed torque transducer made of high-strength, specially tempered aluminum. Strain gauge strips, attached to the inside of the Powermeter, deflect when force is applied to the pedals. The material deflection registers the force (torque) created as well as the cadence. These parameters are converted into a digital electrical signal that is transmitted to a sensor on the frame of the bike. The training data can be transmitted to a PC directly after the training session. SRM's powerful software provides graphic representation of your power, speed, cadence, heart rate, time and distance for each session, and stores multiple sessions so you can monitor, analyze, and compare the data as your power increases.

Because the measuring unit is not built into the hub, the lightweight SRM system offers you the flexibility of interchanging your wheels. Training wheels, racing wheels or anything in between, you obtain the same accurate power data. The system includes SRM Powermeter, SRM Powercontrol VI, oversized handlebar clamp, Suunto speed pod, Suunto heart rate chest transmitter, BB-mounted cadence magnet, and new generation charger/download cable. Compact (34/50). Available as an upgrade on our bike builds and in our build kits.

Take a look around the pro peloton and you'll discover that SRM is the training system of choice for many pro teams, and for good reason. Designed for use on your own bike during training sessions and/or competitions, the SRM Wireless Training System measures power output in watts at the exact point where it can be measured best - the transition between the crank and the chain rings. Your output is measured and recorded continuously to provide the most accurate record of your performance throughout the entire session. SRM also captures cadence, heart rate, altitude, temperature, speed and distance data. The SRM PowerControl VI head-unit displays the wirelessly transmitted data in real-time, simultaneously storing it for download. Data is transmitted via ANT+Sport protocol (power and cadence) or via ANT protocol (heart rate and speed). Updated after each crank revolution, the data is saved in intervals. Choose between intervals of 0.5 up to 5 seconds. The memory capacity is enough to store 130 hours of riding data with the intervals set at 1-second.

The SRM Powermeter consists of the crank, chainrings and measuring unit. Located between the crank arm and the chainrings, the measuring unit is a computer-designed torque transducer made of high-strength, specially tempered aluminum. Strain gauge strips, attached to the inside of the Powermeter, deflect when force is applied to the pedals. The material deflection registers the force (torque) created as well as the cadence. These parameters are converted into a digital electrical signal that is transmitted to a sensor on the frame of the bike. The training data can be transmitted to a PC directly after the training session. SRM's powerful software provides graphic representation of your power, speed, cadence, heart rate, time and distance for each session, and stores multiple sessions so you can monitor, analyze, and compare the data as your power increases.

Because the measuring unit is not built into the hub, the lightweight SRM system offers you the flexibility of interchanging your wheels. Training wheels, racing wheels or anything in between, you obtain the same accurate power data. The system includes SRM Powermeter, SRM Powercontrol VI, oversized handlebar clamp, Suunto speed pod, Suunto heart rate chest transmitter, BB-mounted cadence magnet, and new generation charger/download cable. Standard (39/53) . Available as an upgrade on our bike builds and in our build kits.

Take a look around the pro peloton and you'll discover that SRM is the training system of choice for many pro teams, and for good reason. Designed for use on your own bike during training sessions and/or competitions, the SRM Wireless Training System measures power output in watts at the exact point where it can be measured best - the transition between the crank and the chain rings. Your output is measured and recorded continuously to provide the most accurate record of your performance throughout the entire session. SRM also captures cadence, heart rate, altitude, temperature, speed and distance data. The SRM PowerControl VI head-unit displays the wirelessly transmitted data in real-time, simultaneously storing it for download. Data is transmitted via ANT+Sport protocol (power and cadence) or via ANT protocol (heart rate and speed). Updated after each crank revolution, the data is saved in intervals. Choose between intervals of 0.5 up to 5 seconds. The memory capacity is enough to store 130 hours of riding data with the intervals set at 1-second.

The SRM Powermeter consists of the crank, chainrings and measuring unit. Located between the crank arm and the chainrings, the measuring unit is a computer-designed torque transducer made of high-strength, specially tempered aluminum. Strain gauge strips, attached to the inside of the Powermeter, deflect when force is applied to the pedals. The material deflection registers the force (torque) created as well as the cadence. These parameters are converted into a digital electrical signal that is transmitted to a sensor on the frame of the bike. The training data can be transmitted to a PC directly after the training session. SRM's powerful software provides graphic representation of your power, speed, cadence, heart rate, time and distance for each session, and stores multiple sessions so you can monitor, analyze, and compare the data as your power increases.

Because the measuring unit is not built into the hub, the lightweight SRM system offers you the flexibility of interchanging your wheels. Training wheels, racing wheels or anything in between, you obtain the same accurate power data. The system includes SRM Powermeter, SRM Powercontrol VI, oversized handlebar clamp, Suunto speed pod, Suunto heart rate chest transmitter, BB-mounted cadence magnet, and new generation charger/download cable. Compact (34/50). Available as an upgrade on our bike builds and in our build kits.