Drivetrain Parts on Sale

M21 rear derailleurs are designed to work with 6- and 7-speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. - Robust composite and steel construction - Compatible with Shimano 6- and 7-speed mountain and road systems

M-series rear derailleurs are designed to work with 7, 8, and 9-speed Shimano-compatible mountain and road shifters. Marvo LT rear derailleurs are built with precision rigid aluminum construction. Let these miracle workers get any bike rolling again. - Lightweight aluminum construction - Steel pulley cage for extra chain-rub durability - Compatible with Shimano 7, 8, and 9-speed mountain and road systems

KMC X12 chains feature a double X bridge shape for fast and smooth shifting. - Compatible with SRAM 12-speed systems - Double X bridge shape with inner and outer plate chamfering for smooth and fast shifting - Mushroom riveted pins for the highest pin power and allows shifting under heavy loads - 1/2 x 11/128 - 126 Links

The Acolyte 8-speed cassette gives you all the range you need to challenge yourself.  Whether you’re climbing the Cascades or the neighborhood sledding hill, all you have to think about is where to put the bike – Acolyte will take care of the rest.  And yes, it works with a standard HG freehub body and a normal 8-speed chain.

SLX SM-CRM75 stiff and lightweight chainring delivers smooth pedaling over bumpy terrain. The SM-CRM75 chainring features SHIMANO DYNAMIC CHAIN ENGAGEMENT+ technology, which features special gear teeth profiles that deliver exceptional chain engagement and chain retention. - Special MTB gear teeth profile improves chain engagement and retention - Exchangeable single/double chainring - Crankset can be used as common component - Superior chain retention - Rider tunable

- Wide tooth profiling prevents chain drop without a chainguide - Compatible with 9/10/11 speed chains, allowing a 1x setup on most drivetrains - Constructed in Canada from 7075 aluminum

When it comes to adventurous riding, a wider gear range is often better. The microSHIFT ADVENT cassette has the low gears to get up and the high gears to get back down. Steps between gears are optimized to give an even spread between shifts, reducing the need for double-shifting to find the right gear. - 9-speed, 11-38T cassette provides wide range and low gears for bikes with smaller wheels. - microSHIFT's “Wide Enough” 11-42T gear range works well for a variety of skill levels and riding conditions - 11-46T range with even gear steps for predictable gear changes - Chromoly cogs are continuously forged for strength and shifting accuracy - Compatible with Shimano HG freehub body standard - ED black surface finish

With quick lever access and a light and responsive lever action, Rapidfire Plus SLX shift lever delivers smooth control out on the trail. The new I-SPEC EV lever offers a wide range of adjustments including increased lever slide range. - Quicker lever access and light operation - Instantaneous push and pull movements - 20% quicker main lever access and -35% shifting operation force (vs SL-M7000-R)

With quick lever access and a light and responsive lever action, Rapidfire Plus SLX shift lever delivers smooth control out on the trail. The new I-SPEC EV lever offers a wide range of adjustments including increased lever slide range. - Instantaneous push and pull movements - 20% quicker main lever access and -35% shifting operation force (vs SL-M7000-IR) - Adjust to the optimal position for any riding style or rider preference with clean cockpit - Rider tunable

Shimano's CX70 Chainrings tackle the hurly burly of your next 'cross race with confidence-inspiring shifting and category-defining speed. Light, durable, nickel-plated aluminum is precision engineered to keep your chain running smooth and fast. 36- and 46-tooth chainrings provide a great cyclocross-friendly gear range.

Our Shimano M9100 Narrow/Wide Snaggletooth chainring features our highly sought-after tooth profile. Combine this chainring with any modern-day clutch derailleur and never worry about dropping a chain again. - Highly sought after Bi Directional narrow-wide tooth design provides excellent chain retention without a chain guide - Direct mount for Shimano M9100, M8100, and M7100 and perfect for 1x setups - Features a perfect 51mm to 55mm chainline, depending on axle length and spacer configuration - CNC'd in Canada from 7075 aluminum with laser-etched graphics

Designed with the rider in mind, the ADVENT rear derailleur packs trail-ready features into an attainable wide-range drivetrain system. The derailleur kinematics are precisely tuned to use a more direct cable path, making the shifting feel consistent across the lowest and highest gears, and everything in between. - Clutch provides stronger chain management over rough terrain - Ratchet-and-pawl clutch is easily adjustable and repairable - Direct cable routing for smooth, responsive shifting - Compatible with 11-42T 9-speed cassettes - Compatible with ADVENT shifters only

MicroSHIFT's H11 cassettes are manufactured to exacting tolerances for straightness, shift quality, and durability, resulting in responsive shifting performance that lasts longer than you might expect. - Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance - Precision ramps and chamfers for rapid chain movement - Compatible with SRAM and Shimano 11-speed systems - Steel lock ring - Sprockets are ED coated for added durability Gear combinations: - 11-46T: 11-13-15-18-21-24-28-32-36-40-46 - 11-42T: 11-13-15-17-19-21-24-28-32-36-42

- Rider Tuned For Sharp And Silky Shifts - 20% Light Shifting Operation - New Shadow Design With Optimized Slant Angle - Optislick New Shift Cable With New Hyper Low-Friction Coating Technology - Chain Stability Improved - New Shadow Design With Optimized Slant Angle For Stable Gear Position - Efficient Shifting And Smoother Driving - Efficient Pulley Teeth Design - Increased Traction Range For Long-Travel And Active Rear Suspension - Series : SLX: SLX - Maximum Sprocket : 42T(2x11-speed) or 46T(1x11-speed) - Minimum Sprocket : 11T: 34-38T - Front Difference : 10T: 48.8 - Total Capacity : 41T: 66-69 - Average Weight : 323g: 145.6g

The SLX M7100 series of derailleurs deliver advanced shifting performance with decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with Shimano's new 12-speed cassettes boosts range. - Advanced shifting performance provides the confidence to enjoy any trail - Fast and shockless shifting - Hyperglide+ - Extra wide range 12-speed drivetrain -10-51T (12-speed) - Silent drivetrain in all gear positions - Decreased rear derailleur and chain tension in low gear - New bumper added to rear derailleur pulley cage - Bump Stopper - Bigger 13T pulley - Stable drivetrain on rough terrain - Low-profile design - Shimano Shadow RD+

The ultra wide ratio provides optimal range for Box Drivetrains and other 1x drive trains. Aluminum carries reduce weight and prevent pitting of the free hub body. Speed : 11 Material : Alumiun Spider, composite spacers, and steel Cogs Ratio : 11-13-15-18-21-24-28-32-36-42-50 Chain: 11sp Freehub required: Box or Shimano

The XG-1299 cassette completes the expression of the world's most accomplished and sought after bikes. Designed for use with our proven, reliable XD driver body, this 12-speed cassette offers a massive gear range. In independent tests, the X-Dome architecture is proven to yield the strongest cassette on the market. New shifting characteristics improve both inboard and outboard shifting as well as chain retention. - SRAM’s cassette manufacturing technology provides the greatest durability and lightest weight - All-new shifting features create a smoother, quieter system with enhanced inboard and outboard shift performance - XD driver body compatible Cogs - 10 – 50T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 50 - 10 – 52T: 10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52