No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. Lucky for you, Specialized has combined their incredibly light and stiff carbon fiber S-Works road cranks with dual-sided power measurement, making it the lightest (440g/172.5mm) and most accurate power meter available. The development of Power Cranks began with Specialized's Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, they found that neither of these methods answer the "real-world" accuracy question. To get the best test for accuracy, in all types of riding scenarios, Specialized built their own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets them evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is their gold-standard for testing power meters, and through their testing and external validation from the Locomotion lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real world scenarios (+/- 1.5%). The Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/-1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. - Independent, dual-leg power measurement. - Works with ANT+ and Bluetooth devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Hollow carbon crankarms, carbon spider, and oversized alloy spindle offer superior stiffness and lighter weight than the competition—440 grams for 172.5mm crankarm length. - Fits Specialized road frames with OSBB or PF30 bottom bracket shell, as well as most BB30 road frames. - 110 BCD carbon spider (also compatible with 130 BCD carbon spider—sold separately). - Compatible with Shimano and SRAM drivetrains. Chainrings are sold separately. Use only with Specialized/Praxis chainrings 06217-1702 (52/36T) and 06218-1713 (50/34T). - Available in 165-180mm crankarm lengths.
The Shimano 105 double crankset balances weight and efficiency without sacrificing stiffness. It offers Rider Tuned performance with numerous gear combinations, and the wider gear pitch increases chain clearance with small gearings and allows for as short as 410mm chain stays. - Hollowtech II construction - 11-speed - 110mm Shimano Asymmetric BCD
Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS
The Shimano FC-M371 crankset for square bottom brackets features a rigid 2-piece construction and Hyperdrive SG-X chainrings. - Chain guard included - 9-speed
Shimano's Deore Crankset features efficiency and fast shifting to let you make the most out of the trails. The smooth shifting rhythm allows you to maintain speed and acceleration over challenging terrain. Hollowtech II technology provides the best balance of stiffness, strength, weight, and rotating performance. Features: - Efficient power transfer - HOLLOWTECH II crank arm with 4-arm construction - Composite chainring - Optimized gear combinations and ratios for trail riding - Close step tooth profile for smooth shifting - Stable shifting performance in any suspension position - Single spike structure for stable shifting - Bottom Bracket compatibility: SM-BB52/BB-MT500-PA - Chain Line: 51,8
The Shimano Deore XT FC-M8130 Super Boost+ crankset for MTB offers the simplicity of a 1x drivetrain with the stability and compatibility of Hollowtech II technology. - Chainring sold separately - Hollow forged crank maximizes power transfer while limiting weight - Shimano's Hollowtech II technology provides the best balance of stiffness, strength, weight and rotating performance - Features 56.5mm chainline designed for Super Boost+ spacing - 181mm Q-factor - Number of Chainrings: No Rings Included - Chainline/Hub Compatibility: 157 Super Boost Hubs - Crank Intended Use: Mountain - Pedal Spindle: 9/16" - Spindle Interface Type: Shimano Hollowtech II - Drivetrain Speeds: 12 - Chainring BCD: Direct Mount - BB Included: No
- Optimum Power Transfer - Best Balance For Lighter Weight (-7G) And Efficiency - New Designed Crank Arm - Maintains High Rigidity And Reduces Weight - Hollowglide - 4-Arm Construction Crankset - Adapted For Race Specific Disc Brake System - Shorter Length Of Rear Center With O.L.D. 135mm - Redesign The Gear Teeth Profile To Fit Wider Gear Pitch - 50-34T/53-39T/54-42T/55-42T/52-36T - Iconic Design - Chain Line: 43.5
The Shimano Dura-Ace FC-R9200 crank performs two vital functions; transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. With HOLLOWTECH II crank arms to ensure light weight and Shimano's class-leading chainring designs, the FC-R9200 won't let you down. - Optimal balance of stiffness, strength, weight and rotational performance - HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting - 148mm Q-factor - 44.5mm chainline
Shimano's new FC-RX810-2 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. The 2x11-speed crank is available in a 48-31T, 40T, and 42T chainring combination and 170, 172.5, and 175mm crank arm lengths. - Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires - Optimum gearing for mixed terrains and riding styles - Wide-range double - Gear combinations: 48-31T, 40T, 42T
Shimano's super-stiff SLX Crankset offers trail riders efficient power transfer and low weight to blast up mountains, plus the rugged durability to scorch back down. Shimano's Hollowtech II design integrates the crankarms and bottom bracket into a single unit with a beefy spindle, spinning on large-diameter bearings with ultra-wide spacing for maximum rigidity and strength. From XC smooth to enduro burl, you can expect smooth, effortless shifting from Shimano's SLX crankset.
The Shimano SLX FC-M7130 Super Boost+ crankset for MTB offers the simplicity of a 1x drivetrain with the stability and compatibility of Hollowtech II technology. - Chainring sold separately - Hollow forged crank maximizes power transfer while limiting weight - Shimano's Hollowtech II technology provides the best balance of stiffness, strength, weight, and rotating performance - 56.5mm chainline - 181mm Q-factor - Number of Chainrings: No Rings Included - Chainline/Hub Compatibility: 157 Super Boost Hubs - Crank Intended Use: Mountain - Pedal Spindle: 9/16" - Spindle Interface Type: Shimano Hollowtech II - Drivetrain Speeds: 12 - Chainring BCD: Direct Mount - BB Included: No
An integral part of the Shimano Ultegra 12-speed road lineup, the FC-R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the Ultegra crank is now offered in a wide variety of lengths, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements. - Optimal balance of stiffness, strength, weight and rotational performance - Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting - 148mm Q-factor - 44.5mm chainline
Super strong and ultra durable, Shimano's ZEE Cranks are tailor-made for aggressive riders, DHers and dirt jumpers that don't have endorsement deals. They use a 2-piece design with solid aluminum arms as well as a steel axle and steel pedal inserts for longevity. Stiffness was put at a premium, so if you need to stomp on the pedals to get up to speed quickly, or if you're a Clydesdale who punishes lesser cranksets, ZEE has your back. It's 10-speed compatible and is equipped with a 36-tooth chainring. The bottom bracket is included, too.
Revo 3-piece cranks from Salt. - Dent-resistant square shaped arm - Left & right side sprocket bolt boss - Rolled Salt logo on arm - Bore: 19 - Spindle Material: Steel - Drive Side Compatibility: Right and Left Hand Drive - Crank Arm Material: Steel - Crankset Style: 3-Piece - BB Style: Mid - BB Included: Yes
SRAM pioneered the 1x drivetrain, and the SRAM Force 1 crankset evolves the innovation. It’s lighter, stronger, and simpler—non-aero chainrings can now be installed with a single tool. For cross, TT, tri and crits, this is the king of 1x. - Single-ring drivetrain simplifies functionality and reduces weight - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Can be upgraded to a power meter
The SRAM Force AXS Crank Arm Assembly features carbon crank arms that are ready to pair with any SRAM AXS spider or integrated chainring, with or without power. - 8-bolt interface is compatible with power and non-power AXS spiders and integrated chainrings - Not compatible with SRAM's 3-bolt direct mount interface - Carbon fiber arms with natural carbon finish - Spider and chainrings sold separately - DUB spindle interface - Compatible with all SRAM Road DUB bottom brackets - Number of Chainrings: No Rings, No Spider Included - Crank Intended Use: Road - Pedal Spindle: 9/16" - Spindle Interface Type: SRAM DUB - Chainring BCD: Direct Mount SRAM - BB Included: No
$249.00 - $420.00
Riders want more range and closer steps between gears—and that’s the driving design principle of the SRAM Force crankset. It offers smaller chainrings with a consistent 13-tooth gap between size variants, delivering smooth, accurate, and dependable shifting for the modern rider. Always find the sweet spot. - X-Range gearing technology gives you more range and a smoother gear progression, so you’re always in the right gear - Crisp and accurate front shifts - DUB bottom bracket adds durability and simplicity - Can be upgraded to a power meter
Explore the most challenging routes on the newest crop of versatile and fun drop-bar bikes with the SRAM Force 43/30T wide crankset. Shifting is smooth, accurate, and dependable using our proven X-Range gearing based around a tight, 13T difference between the small and big chainrings. The wider stance of the chainrings expands 2x drivetrain bike capabilities by providing clearance for fatter tires. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Crisp and accurate front shifts - Wide chainline crankset for bikes with up to 700c x 45 or 27.5 x 2.1" tire widths (43/30 chainrings only) - Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brands - Requires Force Wide front derailleur - DUB bottom bracket adds durability and simplicity
The SRAM GX Eagle crankset delivers consistent performance, excellent chain retention and quiet operation. Featuring SRAM’s X-SYNC 2 tooth profile chainring, the GX crankset is engineered with each tooth's thickness precisely toleranced and controlled to work seamlessly with the chain's inner and outer links. Available in various configurations. - Forged 7000 series aluminum arms - Use with Eagle chains for optimal performance - Pedal Spindle: 9/16" - BB Included: No - Chainring BCD: Direct Mount SRAM - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11 - Chainline/Hub Compatibility: 141/148 Boost Hubs
Pairing the versatile GXP bottom bracket platform with hollow carbon Exogram arms, the SRAM RED crankarm assembly is light, strong, and elegant. It can be paired with any SRAM AXS spider or integrated chainring, with or without power meter. - 8-bolt interface compatible with power and non-power AXS spiders and integrated chainrings - Hollow Exogram carbon arms - BB/Spider/Chainrings not included
SRAM's S300 1.1 single-speed Crankset combines their stiff 7075-aluminum chainring with their lightweight 6061-aluminum forged arms. The high-profile teeth are compatible with 9- and 10-speed chains, and the stout spindle efficiently transfers your power. Plus, GXP bottom bracket cups are included.
The new X01 Eagle is our best, toughest, and most aggressive Trail and Enduro crankset thanks to DUB technology. The reengineered design, employing our proprietary CARBON TUNED lay-up technology, is built tough to handle aggressive lines through rock gardens and big hits wherever you find them. - DUB technology delivers the strongest, stiffest, lightest crankset available - All-new SRAM CARBON TUNED crank technology provides extreme stiffness and low weight - All-new chainring technology is designed specifically for Eagle chains and drivetrains - The X-SYNC2 chainring provides significantly quieter performance with better mud clearing and extraordinary durability
True competitors are always looking for a performance advantage—a relentless pursuit of equipment that is lighter, stiffer, stronger, and more durable. To create the best drivetrain possible, we re-examined and re-engineered our crankset design. Our all-new XX1 Eagle CARBON TUNED crankset is our lightest, stiffest, and strongest to date. DUB technology enhances this by simplifying the relationship of the spindle to the bottom bracket and redefining the measure of durability. DUB-powered cranksets deliver simplicity, compatibility, and durability. - DUB technology delivers the lightest, stiffest, and strongest crankset available - SRAM CARBON TUNED crank technology provides extreme stiffness and low weight - The X-SYNC 2 chainring provides significantly quieter performance with better mud clearing and extraordinary durability - New colorway is matched to work with XX1 Eagle AXS-enabled componentry
$437.99 - $438.00
True competitors are always looking for a performance advantage—a relentless pursuit of equipment that is lighter, stiffer and stronger. To create the best drivetrain possible, SRAM started with a completely reengineered crankset design. SRAM's XX1 Eagle crankset is the lightest, stiffest and strongest on the market. A special hollow internal architecture, combined with SRAM's proprietary CARBON TUNED lay-up, allows us to build a lightweight and ultra-energy-efficient crankset perfectly suited for the high-wattage output and smooth style of cross country riding and racing. Teamed up with their Eagle direct mount chainring, and as an integral part of the Eagle drivetrain, the XX1 Eagle crankset puts more focused power into every ride.
- Quarq D1 crank arm assembly - 8 bolt interface for use DZero DUB and DFour DUB power spiders
$174.95 $400.00 56% Off
Sporting a supreme strength-to-weight ratio, Specialized's S-Works Carbon Mountain Crank Arms are super stiff and ready to propel you up the trails. With a self-extracting bolt for easy maintenance, these fourth-generation hollow crank arms feature an oversized aluminum spindle with a spline interface. It fits all frames with 73mm bottom bracket shell and includes all hardware for Pressfit 30.
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