Lengths: 165, 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 710 g.

Ultegra 6600 Bottom Bracket sold separately

Ultegra 6601-G available in 165, 170, 172.5 or 175mm lengths with 39x53T chainrings. Requires BB external cups (sold separately). 710 g.

Lengths: 165, 170, 172.5 or 175mm
Chainrings: 30 x 39 x 52
Weight: 790 g.

Ultegra 6600G Bottom Bracket sold separately

Ultegra 6604-G triple available in 165, 170, 172.5 or 175mm lengths with 30/39/52T chainrings. Requires BB external cups (sold separately). 790 g.

Lengths: 165, 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 710 g.

Ultegra 6600G Bottom Bracket sold separately

Ice Grey finish. Hollowtech II design maximizes stiffness while keeping weight to a minimum. Precision two-piece construction for perfect chainline and chainwheel alignment. New compact, 50X34. New two-tone chainring cosmetic. Aluminum chainring bolts and steel bottom bracket axle. Outboard bearings maximize stability and stiffness. Requires BB external cups (sold separately). 710 g.

Lengths: 170, 172.5 or 175mm
Chainrings: 34 x 50
Weight: 645 g.

BB cups included

Light, stiff 6K carbon weave finished with a uni-directional graphite sheet and clear coat. Features an integrated carbon spider for greater power transfer with less effort and integrated GXP team bottom bracket to optimize bearing loads. Hard-anodized PowerGlide™ chainrings offer precise shifting and long wear. Specify English or Italian cups.

Lengths: 170, 172.5 or 175mm
Chainrings: 39 x 53
Weight: 665 g.

BB cups included

Light, stiff 6K carbon weave finished with a uni-directional graphite sheet and clear coat. Features an integrated carbon spider for greater power transfer with less effort and integrated GXP team bottom bracket to optimize bearing loads. Hard-anodized PowerGlide™ chainrings offer precise shifting and long wear.

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

BB cups included (English only)

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. The Red Crankset virtually eliminates it with new hybrid ceramic bearings housed within the GXP™BB's case. Ceramic bearings ride in a stainless steel race, are more efficient, use a lighter seal, and are lighter, stiffer, and longer-lasting than normal bearings. Red PowerGlide™ chainrings are designed to professional-grade shift, stiffness, and durability standards. English threaded cups only.

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

BB cups included (English only)

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. The Red Crankset virtually eliminates it with new hybrid ceramic bearings housed within the GXP™BB's case. Ceramic bearings ride in a stainless steel race, are more efficient, use a lighter seal, and are lighter, stiffer, and longer-lasting than normal bearings. Red PowerGlide™ chainrings are designed to professional-grade shift, stiffness, and durability standards. English threaded cups only.

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.