DZero is Quarq's next-generation power meter platform for those who live to be challenged, pushed, and tested in the toughest scenarios imaginable. Now Quarq has introduced a DZero spider designed to replace the factory spider on Specialized's S-Works carbon crankset. Quarq DZero for Specialized embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth low energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE app. You also get AxCad accelerometer cadence, the easy-to-replace CR2032 battery, an IPX7 waterproof rating and a 2-year warranty. Features & Benefits: - Bluetooth low energy technology and ANT+ wireless data transfer - AxCad – no cadence magnet required - 10K Temperature Compensation - Battery – CR2032, 200-hour battery life, change without tools - Power Balance - OmniCal – swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy – within 1.5%, measuring both legs - Free firmware upgrades with the Qalvin app Essential Details: - Traditional 5-arm spider compatible with Specialized S-Works Carbon Road Crank Arms from 2013-Current. - Available in 130 BCD and 110 BCD. - Replaces the standard spider. - A Specialized lockring tool is required for installation.
Stronger, stiffer, and lighter than ever; that is exactly what you can expect with the Quarq DUB crank arm assembly. Paired with the DZero or DFour DUB power meter spider and the DUB bottom bracket, the Quarq DUB crank arms assembly builds a power meter that can handle the toughest of conditions. - Only compatible with Quarq DZero DUB and DFour DUB power meter spiders - Does require a SRAM DUB bottom bracket
- 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 1x guide is the definitive cross-country chainguide. Used on the World Cup circuit and even in the 2012 London Olympics, the 1x has a proven track record of dependability and performance. The 1x is the perfect guide for riders and racers wanting a lightweight single-ring front drivetrain for cross-country use or riders wishing for more security out of their "narrow/wide" or XX1/X01 setups. Freshly updated for 2015 with the new co-molded "TR" upper guide - lighter and quieter, what's not to love? - Adds security to "narrow/wide" 1x10/11 and XX1/X01 drivetrains - Most models accommodate 26-38t chainrings - Tracked and grooved upper guide / backplate interface increases stiffness and eases installation - New co-molded "TR" upper guide with softer durometer interior for silent guidance - All install and adjustment operations possible with just a single 4mm HEX wrench. - BB mounted guides are only compatible with traditional, threaded BB systems
$128.99 - $134.99
Shimano's Tiagra Front Chainwheel is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Series: Tiagra 4700 - Crank Construction: 2-piece crank construction - Cassette Compatibility: 10-speed - Chain Compatibility: Series color - Bottom Bracket: BB-RS500 / BB-RS500-PB
$90.00 - $117.00
Shimano Chainring Bolts - For use with M9000 chainrings
Wheels Manufacturing Press Fit 30 Bottom Bracket Adapter for 22/24mm Spindle Cranks adapts 22/24mm Spindle Cranks (SRAM/TruVativ) to work on PF30 frames. Simply tap the adapters into the 6806 bearing in the BB shell, then install the spindle and cranks. Use Wheels Mfg Crank Spindle Spacers to adjust your chainline, or take up any side-to-side movement in your cranks. These spacers are machined from engineering-grade Delrin. Notes: - PF30-SRAM was originally designed for use with SRAM PF30 bottom brackets and will not work with Wheels Manufacturing PF30-BB, PF30-BB-AC or PF30-BB-CER. Use Wheels Mfg BBUNIV-SRAM to adapt 22/24mm Spindle Cranks (SRAM/TruVativ) in Wheels Manufacturing PF30 bottom brackets. - Not compatible with SRAM PF30 bottom brackets that use a thin plastic reducer inserted into the bearings. - The stock bottom bracket seals must be removed before installing the Pressfit 30 adapter
$42.00 - $47.00
TruVativ's Stylo All Mountain Guard is all-mountain chainring protection with style. This 4mm thick aluminum guide is 4 bolt, 104 BCD compatible.
Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with Specialized S-Works cranksets that have removable spiders/chainrings and are only compatible with CAMO rings and bolts. One chainline option is available for S-Works cranks. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M1 (minus 1mm - dished toward the frame): For 49mm chainline, designed for bikes with 135mm QR, 142mm thru axle, and some 148mm bikes.
Trail riding can be tough on your gear. The ends of your carbon cranks can take a lot of abuse as the trail rushes underneath you and your bike. Protect your cranks from any damage with Race Face crank boots. Made from a durable Race Face proprietary plastic blend, leave no doubt and go with the originator in crank end protection. Wrap it up and protect the tips! Compatible with: - Race Face - Next SL Cinch (G3) - Sixc Cinch - Chester - Respond - Next/Next SL (24mm Spindle) - Sixc (24mm Spindle) - Most other popular carbon MTB cranks and assorted alloy DH cranks
Promax SQ-1 Crank Arm sets more than cover your need for hard-to-find lengths and hard-to-miss colors. - BCD: 110mm - Weight: 25.2 oz.
Promax HF-2 BMX Cranksets are Promax’s top-of-the-line crank offering. Hollow-forged from 6061-T6 aluminum, both crank arms are hollow so they are super-stiff, yet lightweight. The crank arms spin on a beefy 24-millimeter spindle permanently fitted into the drive-side arm. - Bottom bracket sold separately - Pedal washers included - Meets or exceeds ENBMX standards - Chainline: 43mm - Q-Factor: 167mm - BCD: 104mm - Weight: 29.5 oz.
$9.99 - $20.00
• Forged steel • 24 TPI
Wheels Manufacturing 2.5mm Black Aluminum Bottom Bracket Spacers are for adjusting chainline or bearing play in English (BSA) or Italian threaded bottom brackets.
Spindle and hardware kit for Race Face CINCH MTB and fatbike cranks.
- Bash guard protects chainring from logs, rocks and other trail hazards - Designed and manufactured in the USA from 7075-T6 aluminum alloy - See wolftoothcycling.com for mounting tips - 51g (26-30t)
The Descendant 7K crankset delivers consistent performance every ride. Featuring SRAM's X-SYNC2 tooth profile chainring, the Descendant crankset is engineered for complete chain control. Each tooth's thickness is precisely toleranced and controlled to work seamlessly with SRAM chain's inner and outer links. SRAM DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of durability. - The Descendant 7K crankset is compatible with the SRAM Eagle drivetrain system - Featuring SRAM’s X-SYNC2 tooth profile - Optimized 7000 series forged aluminum arms - SRAM DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination and is forward and backward compatible - Direct Mount ring - ISO 4210 compliant - 12-Speed, 56.5mm chainline - DUB bottom bracket sold separately
$268.00 - $303.00
SRAM's Force 22 Crankset uses unidirectional carbon arms with a forged aluminum spider and integrated bottom-bracket axle to ensure top-notch stiffness for awesome power transfer and exceptionally low weights. Experience phenomenal front shifting with SRAM's X Glide R chainrings that start out as 5mm-thick aluminum plates and then precision machined to eliminate all unessential material while retaining extreme stiffness. With so much great technology and 11-speed compatibility, they're a force to be reckoned with.
$164.00 - $183.00
SRAM's Rival 22 performs on par with more expensive cranksets, but at a bargain value. The crankarms are hollow and forged from 6066 aluminum for maximum strength with minimum weight. Because lightness is nothing without toughness, the Rival crankset proudly boasts SRAM's X Glide R chainrings that are specifically designed for use with the Yaw front derailleur. Durability and reliable shifting are your allies with Rival 22.
$267.00 - $314.00
Forget front derailleurs; SRAM's Force 1 Crankset brings a game-changing upgrade in performance and reliability to cyclocross, road, and other 700c disciplines. Force 1 combines the durability, simplicity and efficiency that SRAM is known for with their 1x mountain technology. - Single-ring drivetrain simplifies functionality - SRAM X-Sync: wide-tooth, narrow-tooth chainring technology provides maximum chain control - Chainrings available in 42, 50 (110 BCD), and 52 (130BCD) teeth to conquer every course from sand dunes to gravel-road assaults - Unidirectional carbon crank arm matched to a forged aluminum spider for lightweight and durability - Weight 679g-24mm, 172.5mm, 50T, no BB - Bottom bracket not included
$164.00 - $183.00
Forget front derailleurs; SRAM's Rival 1 Crankset brings a game-changing upgrade in performance and reliability to cyclocross, road, and other 700c disciplines. It combines the durability, simplicity, and efficiency SRAM is know for on the road with their 1x mountain technology, X-Sync. - Single-ring drivetrain simplifies functionality - Forged aluminum with detachable spider: 42T and 52T X-Sync tall, square tooth design provides maximum control - Sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain - Mud-clearing recesses for the inner chain links and rollers - Weight: 799g (24mm spindle, 172.5mm, 42T, no BB)
- Chainrings Included: Yes - Number of Chainrings: Single - Pedal Spindle: 9/16" - Rings: 42-tooth
Light and strong, these Specialized S-Works carbon road arms, and spider give you the competitive advantage. - Light and strong, these S-Works carbon road arms give you the competitive advantage. - Hollow carbon crank arms offer superior stiffness. - Oversized alloy spindle with Hirth coupling interface. - Fits Specialized road frames with OSBB or PF30 bottom bracket shell. - BB30 compatible. - Compatible with Shimano and SRAM drivetrains. - Finish: Unidirectional carbon fiber - Spider: 110BCD
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
The SRAM RED crankset leverages a pivotal design innovation: smaller chainrings and a wider cassette range. This leads to smoother and faster shifting up front and more useful gearing for today's riders. The new configurations improve cadence and efficiency while also delivering shifts that are crisp, clean and quick-every time. Features - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Improved front shifting performance for crisp and accurate front shifts - Unique chainring design results in a lighter weight, stiffer, more durable crankset - DUB bottom bracket adds durability, simplicity and broad compatibility - Power upgradeable Specifications - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs, GXP/PF GXP 68mm - Chainring Size: 46/33, 48/35, 50/37 - Crank arm length: 165mm, 167.5mm, 170mm, 172.5mm, 175mm - Chainline: 45.0mm - BB Spindle Interface: 24mm, DUB - Chainring material: Aluminum - Guard: No Guard - Bolt Circle Diameter (BCD): Direct Mount (DM) - Crank arm material: Carbon
The SRAM GX Eagle DUB Fat Bike crankset delivers consistent performance every time out. Featuring SRAM's DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. Optimized 7000 series forged aluminum arms support the X-SYNC 2 chainring to provide complete chain control. Now everyone can benefit from a new measure of durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Optimized 7000 series forged aluminum arms - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - BB Included: No - Chainring BCD: Sram Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 190/197 Hubs
$999.95 $1,150.00 13% Off
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.
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 XX1 Eagle DUB crankset has been re-examined and re-engineered. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility, and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Carbon-tuned lay-up crank design provides extreme stiffness and light weight - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - BB Included: No - Chainring BCD: Sram Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 135/142 MTB Hubs
Triathlon. Time Trial. Cyclocross. Some disciplines are made for 1x. And while SRAM's X-Range 2x set up has integrated much of the simplicity of a 1x system, there are still times when a single ring is best. The SRAM RED 1 crankset offers the most demanding racers the right mix of features—aerodynamics, durability, and simplicity. - Single-ring drivetrain simplifies functionality and reduces weight - 48 and 50t variants feature direct mount aero chainrings for better aerodynamics - 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 - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Can be upgraded to a power meter - Version: D1
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