Other

Designed for use with the Zipp SL Speed Seatpost; an internal mount to hold a Shimano DI2 seatpost battery. - Mount compatible only with B1 SL Speed seatpost - Weight: 18g for 27.2mm, 19g for 31.6mm

Shims for fitting 26.0mm diameter handlebars to 31.8mm clamp diameter stems. - Outside Diameter: 31.8mm - Inside Diameter: 26.0mm - Length: 44mm - Machined Aluminum - Anodized Black

- Allows the use of a 7 speed shimano cassette on an 8 or 9 speed shimano cassette body

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (2) M3x10 Socket Head Cap Screws

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (2) M5x10 Flat Head Screws

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (3) M3x8 Flat Head Screws - Specialized Part #9890-4226 Note: This hanger has been updated to match Specialized Part #9890-4226 and will accommodate 28-tooth and larger cassette cogs. Shifting with smaller cassette cog ranges will not be adversely affected.

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (2) M3x8 Flat Head Screws

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - For carbon frames, use (2) M3x8 Flat head screws - For all non-carbon frames, use (2) M3x10 Flat head screws

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M5x10 Socket Head Screw

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M6 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (2) M3x8 Flat Head Screws

All Wheels Manufacturing hangers are produced in their Colorado shop to exacting tolerances using the finest US-made aerospace quality aluminum. - CNC-machined 6061 aluminum - Black anodized finish - Mounting hardware included

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M4x10 Flat Head Screw Note: This hanger has a pin machined in to it that inserts in to the frame (refer to photos).

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M6 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt (bolt only)

All Wheels Manufacturing replacement derailleur hangers are produced in their Colorado shop to exacting tolerances. - CNC machined 6061 aluminum - Black anodized finish - Includes (1) M8 Chainring Bolt

Loose ball bearings to fit many brands of hubs, headsets, and bottom brackets. Grade 300 — Ultegra level quality.

If you've got rear-facing horizontal dropouts and you don't want your chain to slip when your rear wheel pulls forward, then Surly's got you covered. The Tuggnut is made from investment-cast stainless steel and it'll hold your wheel in place. Plus, it comes with an adapter for quick release axles and features an integrated bottle opener.

This minimal ISCG 05 chain guide is designed to promote pedaling efficiency and low drivetrain drag while keeping the chain securely on the chainring through rough terrain.

Shimano BT-R1A External Di2 Battery - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

Shimano Rear Derailleur Pulley Assemblies

Shimano's Di2 electric drivetrain takes shifting to the next level. Two Di2 Battery Chargers are available. Choose the model designed for your system's battery. An additional power cable is required for the external-style battery charger (sold separately). These chargers fully charge the battery in 90 minutes.

Shimano's Di2 Battery Charger Cable plugs into the Battery Charger (shown, but sold separately) so you can keep your electronic drivetrain at full power.