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Drivetrain Parts

Shimano Dura-Ace R9100 Power Meter Crankset
$1,414.99 - $1,549.99
Shimano's R9100 series crankset achieves the ultimate in optimal power transfer. It does this through its broader Hollowtech II arm and a more reinforced outer chainring on its unique asymmetrical four-arm spider construction. The R9100 cranks set the highest standards for stiffness and lightness. With the first integrated power meter, you can expect extremely accurate data. The FC-R9100-P is Shimano’s first power meter, as well as Shimano’s first crank-integrated power meter on the market. It retains its unique asymmetrical four-arm spider construction, but with a ‘brain’ mounted on the inside. On its crank arm are the strain gauges. Working perfectly in sync with each other, you can use the extremely precise power data to improve your performance. - Accurate real time data - Compatible with 3rd party displays - Bluetooth / ANT technology - Hollowtech II construction - Hollowglide chain - 11-speed compatible - Waterproof in all conditions - ±2% accuracy of strain gage measured power - Integrated rechargeable battery - Simple zero reset with switch on transmitter - Average weight (170mm, w/o BB): 691 grams (53-39T)/679 grams (50-34T)
Specialized S-Works Power Cranks - Dual-Sided
$1,150.00
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.
SRAM RED Quarq Power Meter Crankset
$1,079.00
The crankset is the heart of your bicycle and where you’ll find the SRAM RED Quarq power meter. The sole job of the crankset is to convert the effort from both legs to forward motion. It is the perfect place to measure power. This power meter works for every discipline: Road, triathlon, time trial, and cyclo-cross. The chainrings are replaceable should your bike, discipline, or ability change. - A direct force power meter that measures total power output from both legs with +/-1.5% accuracy - Works for every discipline: Road, triathlon, time trial, and cyclo-cross - No compromises on materials, shifting, wheels, or pedal choice - Proven by pro teams and athletes throughout the world – Cobbled Classics, Giro d’Italia, Tour de France, Vuelta a España, World Championships - Number 1 at the Ironman World Championship for the last three years - Uses a hidden bolt to mount the chainrings – compatible SRAM chainrings ensure the derailment pin lines up behind the crank arm - 10K – programmed with over 10,000 data points to eliminate temperature effects on power measurement - AxCad – A multi-axis accelerometer switches the power meter on and measures cadence, simplifying installation and operation - Breakthrough Materials – Exogram hollow carbon fiber crank arms – the lightest, strongest crank arms SRAM makes – minimize weight and maximize speed [ELSA RS, ELSA R and SRAM RED] - Easy to use (and reuse) – LED indicator and visible ANT+ ID - The replaceable CR2032 battery never leaves you without power - Manual and automatic zeroing make it truly set and forget - Built to Last – IPX7 waterproof rating, 2-year warranty, free firmware updates, and acclaimed international support - Moves with you from bike to bike - With Quarq's free Qalvin app – available for Windows, Mac, iOS and Android – you can set the zero offset, check battery voltage, run diagnostics, and perform firmware updates for free Arm Material: Carbon arms, Machined alloy spider Weight: 778 grams (GXP 172.5mm 53x39 BB not included) * Chainrings and BB sold separately
Campagnolo Super Record EPS Braze-On Front Derailleur
$735.00
Campagnolo's Super Record EPS Braze-On Front Derailleur delivers electronic precision to your front shifts. Hammer into the big ring and surge forward with a mere touch of a button, under heavy load or out of the saddle it's still as smooth as a dream. An aluminum internal cage plate and external carbon cage is powered by a servo motor to provide the incredibly quick shifting. It's versatile too, working with both standard and compact cranksets and auto-trimming to eliminate chain rub. - Drivetrain speeds: 11 - Derailleur capacity: 16T - Max ring (teeth): 55T - Double or triple: Double - Waterproof to 1 meter for 30 minutes (IP67 rated) - Weight: 127g
Shimano XTR Di2 Rear Derailleur (Medium Cage)
$719.99
Shimano's unbelievable Di2 technology has made the leap to the trails with their XTR Di2 drivetrain. This rear derailleur features all of the race-day performance you've come to expect from XTR, and the unrivaled stability, speed, and performance of an electronic drivetrain. Since there aren't any cables to stretch or housing to create friction, shift performance stays amazingly perfect, delivering flawless shifts any time, under any condition. System communication with the front derailleur eliminates chain rub and, if you prefer, the rear derailleur can be optimized to use Shimano's Synchronized Shift technology.
Shimano Dura-Ace 9150 Di2 11-Speed Rear Derailleur
$696.99
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Low Profile Rear Derailleur Design - Shimano Shadow Rd - Race Endurance For Less Damage In Crush - Maintains Compact And Smooth Appearance - Maximum Sprocket: 30T - Minimum Sprocket: 11T - Maximum Front Difference: 16T - Total Capacity: 35T
SRAM RED Crankset
$690.00
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
Shimano Dura-Ace 9150 Di2 11-Speed Dual Control Levers
$684.99
Using the lightest materials available, the DURA-ACE R9150 levers offer better control and confidence in race conditions. The lightweight carbon hood material, enhanced shifter layout, and increased reach adjust range are the culmination of generations of SHIMANO's DI2 refinement. Better control and confidence in race conditions - Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles Lightweight - Carbon composite plastic material of hood More intuitive, quicker shifting operation - More defined click feeling and ergonomic shifting lever position Customizable function to fit any riding style - Each switch has the option for multi-shift ON or OFF - E-TUBE PROJECT Optimum power transmitted with firm grip - Ideal ergonomic cover shape with better thickness & tenderness
Shimano Dura-Ace Di2 Dual Control Levers
$684.99
Flawless shifting, superb ergonomics, and state of the art technology? Shimano's Dura-Ace Di2 Dual Control Levers embody all of these concepts. Utter simplicity and ease of use are the hallmarks of these shifters, with gracefully curved lever blades that offer two, easy-to-reach fingertip buttons. The shifting controls are easily accessible from either the hoods or the drops, so you'll have total control from any position on your handlebar. The E-Tube wiring harness is simple, clean, totally waterproof, and runs beneath the bar tape for a super clean look.
Shimano Dura-Ace R9170 Di2 Hydrualic Disc Brake/Lever Set
$684.99
Shimano dual control hydraulic disc brake levers. - More controllable and confidence in race condition - Optimally balanced hydraulic brake system for racing - Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles - Lightweight - Carbon composite plastic material of hood - More intuitive, quicker shifting operation - More defined click feeling and ergonomic shift lever position - Customizable function to fit any riding style - Each switch has the option for multi-shift ON or OFF - E-TUBE project - Optimum power transmitted with grip firmly - Ideal ergonomic cover shape with better thickness & tenderness - Openable hood cover - Simple set up and maintenance - Easy replace hood cover - Openable hood cover - Customizable the function to fit in rider's riding style
Shimano Dura-Ace 9100 11-Speed Crankset
$599.99 - $649.99
- 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
SRAM RED eTap Rear Derailleur
$649.00
The SRAM RED eTap rear derailleur executes shifts the instant you demand it, with military precision. Wirelessly. It’s easy to set up, clean in appearance and delightfully uncomplicated. Mechanical necessities such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a shifting wonder. - Compatible with SRAM RED eTap shift/brake controls - Max tooth size: short-cage - 28T; mid (WiFLi) cage - 32t - SRAM RED eTap shifting logic - Wireless connection via AIREA network for fast and clean installation - Exact Actuation provides precise gear selections - Designed to work with SRAM PowerGlide and PowerdomeX cassettes - Speeds: 11-speed - Weight: 239 grams (short cage with battery) - Outer Cage: Carbon - Compatibility: SRAM RED eTap, PowerdomeX & PowerGlide Cassette - Inner Cage: Carbon - Finish: Black - Pulleys: Ceramic - Pull: Exact Actuation
Campagnolo Record Ultra-Torque Crankset
$620.00
Campagnolo's incredible Record Ultra-Torque Crankset sports a unique, integrated spindle that joins the two sides of the crankset together via a toothed Hirth joint in the center. Campy's ultra-smooth bottom-bracket bearings are included and fit into outboard cups (sold separately). The aesthetically striking design provides incredible stiffness, while Campagnolo's standardized BCD (145/112mm) allows for multiple chainring sizes. Plus, the Record chainrings sport special pins and plating for fast, silent shifts and long life. - Chainrings included: Yes - Drivetrain speeds: 11 - Number of chainrings: double - Spindle interface: Campagnolo Ultra-Torque
Shimano Ultegra R8070 Di2/Hydraulic Dual Control Levers
$611.99
Shimano Ultegra ST-R8070 Di2 hydraulic disc brake dual control levers. - Intuitive shifting operation - Updated features and more defined click feeling - Clearer separation between shift buttons support quick and precise shifting while operating with thick gloves - Customizable functionality to match the rider's style - Each switch has the option for multi-shift ON or OFF - E-TUBE PROJECT - Programmable function of ST top button remote switch for third party cycle computer and shifting - Greater rider control in all conditions - Hydraulic disc brake provides the next stage of control - Small bracket size improves ergonomics - Customize each SW for multi-shift on or off per SW through E-tube project App. - Greater reach adjust range and free stroke adjuster - Lightweight race-ready materials - More quick and precise shifting while operating with thick gloves - 2x11-speed - Average Weight: 180 grams
Shimano R785 Di2 Shift/Hydraulic Brake Lever Set
$579.99
Shimano's R785 Di2 Shift/Hydraulic Brake Lever Set (2x11-speed) is designed for all day riding comfort, durable and dependable performance. - Comfortable and Natural Hand Position for All Day Riding Comfort - High Braking Power Ideal for Cyclocross and On-Road Riding - Electronic Shifting Function Based Shift / Brake Lever Allows for More Compact, More Ergonomic Hood and Lever Design - Both Lever Reach Adjust and Free Stroke Adjust Possible - More Stopping Power, with Less Effort, Especially from the Hood Position - Fits a Wide Variety of Hand Sizes from the Hood Position - Reservoir Tank Provides Pad Clearance Auto-Adjust to Maintain Consistent Pad Clearance - For Use with BR-R785 or BR-RS685 Calipers and Di2 Electronic Derailleurs
Shimano XTR Hollowtech II Trail Crankset
$579.99
Shimano's heralded XTR moniker promises genre-defining performance, weight, and style. Shimano's XTR Hollowtech II Trail Crankset lives up to the name. The hollow, cold-forged aluminum crankarms are ultra light, yet exceptionally stiff for awesome power transfer and efficiency. XTR chainrings feature computer-designed shift ramps for remarkably fast, clean, and precise front shifting. CloseStep gear combos allow riders to tailor the chainring combos to suit their riding needs.
Shimano RS505 Shift/Hydraulic Brake Lever Set w/Calipers
$559.99
The Shimano ST-RS505 STI is a shifter/hydraulic brake lever, compatible with 11-speed systems. - Dual control levers - Brake lever is equipped with a reach adjust mechanism to fit the individual rider - Lever set comes with Shimano BR-RS785 hydraulic post-mount brake calipers
Campagnolo Super Record 11-Speed Cassette
$550.00 - $555.00
For flawless shifting and maximum power transfer, Campagnolo brings you the Super Record 11-Speed Cassette. Its largest 6 cogs are constructed from titanium to save weight, while the other 5 are made of nickel-plated steel for durability. The cogs are mounted on a light and rigid aluminum carrier, and the cassette is secured to the rear wheel with a feathery aluminum lockring.
Shimano Dura-Ace 9100 11-Speed Dual Control Levers
$275.99 - $549.99
- Quick And Intuitive Rear Shifting Operation - Shorter Lever Stroke - Redesigned Internal Shifting Unit - Lighter Front Shifting Operation - Redesign Front System With New Front Derailleur - Comfortable Grip And Operation - More Customizable And Precise Lever Position - Expanded Reach Adjustment Range (14 Mm) Mechanical Brake - Consistent Braking Performance In Any Condition
Shimano Dura-Ace 11-Speed Dual Control Levers
$539.99
Shimano's Dura-Ace Dual Control Levers are the perfect way to experience world-class, ProTour-proven shifting and braking on your road bike. Shimano blessed these modern marvels with their legendarily smooth, precise shifting action and combined that with carbon levers and titanium hardware for feathery low weight. Plus, three bearing units support the main levers for ultra-smooth, ultra-light, ultra-fast shifting with excellent durability. The shifting stroke has been reduced, too, for the quickest shifts yet. There are even built-in reach adjusters for fine-tuning the fit. And, you'll appreciate the ergonomic hoods when you're pounding out the miles and the hidden cables when you're standing back and admiring your race-ready thoroughbred.
SRAM Force eTap AXS Rear Derailleur
$490.00
One rear derailleur to rule them all. The SRAM Force eTap AXS rear derailleur is designed for both 1x and 2x systems. It capitalizes on X-Range gearing technology for enhanced range and chain management and features larger pulleys for improved durability and efficiency. Strong, smooth, quiet and AXS enabled. - SRAM AXS enabled, allowing easy personalization - Orbit chain management technology keeps the drivetrain quiet and secure - A single rear derailleur for all gearing combinations, including 1x and 2x - Larger X-SYNC pulleys for increased durability and efficiency - Compatible with existing eTap batteries
Shimano XTR Down Swing Front Derailleur Di2
$464.99
- More powerful shifting (+25% compared to M9000) - Reliable gear changes under load - Computer controlled auto trim - Optimized Di2 cage profile and gear tracking - Shimano Synchronized Shift compatible - Manual control avaiable (2nd shifter required) - System communication with rear derailleur - Advantage in all conditions - Modular mounting structure (adapters optional)
SRAM RED 11-Speed Crankset
$451.00 - $453.00
Already a legend in its time, the SRAM RED crankset is now available with refreshed graphics to complement the SRAM RED eTap componentry. The SRAM RED crankset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fiber to further improve stiffness and shed weight. As always, for seamless, flawless performance and Yaw compatibility, pair this crank with X-GlideR chainrings. - SRAM Road 11-speed compatible - Compatible with SRAM RED eTap components - Exogram technology uses a large, hollow cross section all the way to the spider, minimizing weight while maximizing stiffness - SRAM's stiffest crank ever - Hidden bolt pattern leverages the characteristics of carbon fiber while presenting a sleek appearance - Stiffer X-GlideR chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimized for shifting with the Yaw front derailleur - Arm Material: Carbon - Chainring Material: Machined alloy - Weight: 557 grams (BB30 172.5mm 53x39 BB not included) - Compatibility: SRAM RED & SRAM Force Yaw Front Derailleur, SRAM RED 22 & PC1170 chains - Finish: Carbon - Bottom Bracket Compatibility: BB30, PressFit 30
SRAM RED 22 Crankset
$450.00
Sprint-worthy stiffness meets climb-friendly weight in SRAM's RED 22 Crankset. Its hollow carbon construction minimizes weight and maximizes stiffness while the chainrings attach with a hidden 5th bolt that uses the crank arm as the mounting point to further increase the stiffness and shed weight. The X Glide R chainrings start out as 5mm-thick aluminum plates and are precision machined to eliminate all unessential material while retaining extreme stiffness. Then, they are carefully ramped and pinned to provide lightning fast shifts. With so much great technology and 11-speed compatibility, your competition with be RED with envy.
SRAM RED Shift-Brake Control
$448.00
The SRAM RED shift-brake controls feature a fresh new look and continue our philosophy of perfecting the interface between rider and bike. We have scrutinized everything, including the transition between handlebar and hoods, the grip texture, finger wrap, and the separate interfaces with both the shifter and brake lever. The result is an extremely comfortable, highly individual fit that makes the shift-brake controls feel like a natural extension of the rider. - SRAM Road 11-speed compatible - New clamp allows better fit and adjustment for modern carbon and ergo bars - Designed for Yaw front derailleurs - ErgoFit textured body improves grip and finger wrap with reduced diameter, providing better control and a better transition to the bar - Individual Reach Adjust of brake and shift lever is easy to access and uses a standard hex key, putting the controls exactly where you want them - Larger carbon ErgoBlade lever improves shifting from the drops - DoubleTap technology delivers both shifts from a single lever - ZeroLoss shifting means shifts engage immediately - Compatible with cable brakes
SRAM RED eTap AXS Shift-Brake Lever
$430.00
Award-winning eTap shift logic, now with the connectivity of AXS. The SRAM RED eTap shift-brake levers build on this foundation while integrating our newest technologies. And, it offers many personalizations, from shifting sequence to brake lever reach. - AXS enabled for easy personalization - Simple and intuitive eTap shift logic - Customizable fit with Reach Adjust - Two ports for Blips on each lever - Large SRAM eTap paddles provide positive controls for rider input - For use with mechanical rim brakes
Shimano Dura-Ace 9150 Di2 Braze-On Front Derailleur
$429.99
- Ergonomic Shifting Operation Without Stress - Shimano Synchronized Shift - Race Endurance For Less Damage In Crush - Quick And Smooth Front Shifting "Under" High Pedaling Torque - Maintains Compact And Smooth Appearance - Top Gear Teeth: 46-55T - Chain Stay Angle: 61-66° - Chain Line: 43.5mm
SRAM XX1 1199 11-Speed X-Glide Cassette
$424.99
With its wide range, SRAM's XX1 11-Speed X-Glide Cassette gives you a clean, simple 1x11 drivetrain. It has a 10-42 tooth spread that gives you pretty much the same gearing as 2- and 3-ring setups without the REDundancy, shifting issues and weight penalty. Yes, you can still spin up your hardest climbs. A key thing to note, is that even with the huge range, there are no huge jumps or dips in the gearing, so your cadence and pedaling stay consistent as you move up and down the entire cassette. The wide open design makes it incREDibly lightweight and aids in mud clearance, giving you cleaner shifting and longer component life. It requires an XD driver hub freebody (sold separately) that further REDuces your wheel's weight and improves the hub connection. Welcome to the future of mountain bike drivetrains.
Shimano 105 ST-R7020 Hydraulic Brake/Shift Lever
$326.99 - $404.99
The Shimano 105 R7020 Dual Control Levers bring the all-conditions confidence of hydraulic disc brakes and refined ergonomics to the quick and intuitive shifting cyclists expect from Shimano 105. features - Great ergonomics cascaded from Ultegra level - Greater reach adjust range - Redesigned internal shifting unit - Greater rider control in all conditions - Quick and intuitive rear shifting operation - Same light shifting operation as top tier systems - Lighter front shifting when paired with FD-R7000 (compared with previous generation)
Shimano GRX BR-RX810/ST-RX815 Disc Brake with Dual Control Lever
$404.99
The Shimano GRX Di2 Dual Control Lever delivers light and responsive shifting for mixed-terrain riding. The ergonomic shifter design improves comfort, and the textured, anti-slip brake lever increases control on bumpy terrain. The Di2 version offers the digital precision of Shimano synchronized electronic shifting. - Excellent heat dissipation - Flat mount and anti-mud specification - Convenient tool access - Simple wheel replacement - Easy and clean bleeding system - Never hesitate to tackle rough surfaces - Simple set up and maintenance - Raised hood head prevents hand misalignment and slippage - Recessed finger notch prevents upward slipping - Anti-slip texture and brake lever coating - Improved braking input performance - Higher brake lever axis and curved brake lever - Improved grip and confidence on choppy surfaces and descents - Higher braking efficiency reduces fatigue on long rides
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