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Origin-8's 1 1/8-inch Headset Spacers are made of lightweight and durable aluminum and come in 2mm, 5mm or 10mm thicknesses and lots of cool colors to add style to your ride. You get a bag of 10 spacers.

- Replaces existing top cap, and allows the use of a bottle cap as a decorative cover - Compatible with both twist off and crimped style bottle caps - Bottle cap is held in place by two strong magnets - Easy to switch out bottle caps - AL6061 alloy cap and AL7075 alloy bolt

Seatpost clamp with integrated cover prevents dirt and mud from entering the frame at the seatpost junction - Chamfered edges and ovalized hole design protects carbon frames and seatposts - AL6061-T6 alloy clamp with NBR cover - 31.8mm for 27.2mm seat posts and 34.9mm for 31.6mm seat posts - 16mm height

Origin-8's Quill Adapter allows you to use modern threadless stems on bicycles with threaded forks that take quill stems (stems with bolts in the center). The Quill Adapter is made of light and durable 7075 aluminum and features a chromoly bolt.

Origin-8's Carbon Fiber Headset Spacers are made of lightweight, durable carbon and come in 5mm, 10mm or 20mm thicknesses. You get a bag of five spacers.

• Converts a cassette hub to a single speed • 8 spacers included in various sizes to adjust chain line • Anodized 6061 aluminum • Fits Shimano/SRAM cassette bodies • Conical spacers for increased cog stiffness • Includes single-speed guide, spacers, as well as 18T & 16T cogs

Available in the most common sizes and thicknesses-in small or bulk quantities, Problem Solvers headset spacers help riders get their stack height just right. - Made from Aluminum, anodized or polished finish, without logos - S.H.I.S. Stem Clamp Diameter: 25.4mm

The Problem Solvers Handlebar Clamp Shim allows you to fit almost any handlebars in almost any stem. It's machined of light and durable aluminum and grooved on the inside to hold tightly.

Notched binder bolts for frames with integrated seat collars. Details: CroMoly steel bolts Three lengths available: 16, 19 and 21mm 8mm diameter

The Problem Solvers Seatpost Shim is what you need when your seatpost is a little too small-diameter to fit tightly into your frame. It's made of light, durable aluminum and has a lip on the top so it won't slide down inside the frame during installation.

Switching frames doesn’t mean you have to switch posts! Use your old posts without worry with Problem Solver's wide variety of seatpost shims. -100mm long -3mm lip -Alloy Problem Solvers Seatpost Shims are not intended for use with carbon seatposts

The Problem Solvers Single Chainring Bolts include 5 chainring bolts and nuts that are 6mm wide. This is the right size for most single-chainring setups. These chainring bolts are made of either aluminum, stainless steel, or chromoly.

The Problem Solvers Braze-On Front Derailleur Adapter simply clamps onto your frame's seat tube and provides a secure place to bolt on your braze-on front derailleur (sold separately). This fine adapter is made of light, durable aluminum and includes a stainless-steel bolt.

The Problem Solvers Clamp-On Cable Guides are for clamping on the rear brake cable housing on your frame when the frame doesn't have provisions for holding a full-length brake cable housing. You get 3 stainless-steel clamps and the nuts and bolts for them.

The Problem Solvers Cross Clamp mounts to the seat tube on your frame so that you can make your top-routed shift cables work with a bottom-pull front road derailleurs. This is a common setup on cyclocross bicycles. Choose the diameter that matches your frame.

The Problem Solvers Head Tube Reducers resize your head tube to accommodate different size forks. These fine aluminum reducers are designed for traditional, external-cup headsets. Please contact us for any questions about compatibility with your bicycle.

The Problem Solvers Center Lock Rotor Adapters are CNC-machined aluminum adapters that allow the use of 6-bolt rotors on Shimano's Center Lock hubs.

These simple clamps allow riders to mount I-Spec II compatible shifters or dropper levers onto their bars without the otherwise-requisite Shimano I-Spec II compatible brake levers. Sold individually and can be used for either right- or left-hand side. - Hinged clamps for easy installation without removing other components - AL-6061, anodized black - 23 grams - For use only with I-Spec II compatible shifters or dropper lever

The Problem Solvers Cable Doublers are made of light, durable machined and anodized aluminum and they are Teflon coated for a super-smooth cable pull every time. They come in two models. The first allows you to control two brakes with one lever. The second allows you to control one brake with two levers. Why? Well, there are myriad applications: tandems, cyclocross bikes, fixies, tricycles, recumbents, cycles for those with special needs, bike polo bicycles, those 4-person bikes you see on beach boulevards, and so on. You could even link both models of Cable Doublers together for the ultimate in redundancy!

What Has Two Thumbs and Rallies? This guy! The Aeffect R 1X Seatpost Lever delivers big time hassle-free height control. Designed to eliminate any excess bells and whistles that might fail, this lever gets the job done so you can focus on everything else. Skip The Slip Textured no-slip thumb pad helps your butter thumbs hit the lever right every time. Feels So Good No one has ever gotten carpal tunnel from a dropper lever and we aim to keep it that way. Ergonomically designed for 1X set-ups under your bar.

Designed specifically for the Ritchey WCS Carbon Fork, this compression device secures the stem and headset for any fork with a carbon steerer. - Compression plug for carbon 1-1/8" steerers - Top cap fits 1-1/8" stems

Saddle rail clamp outer-pieces to adapt Ritchey WCS Carbon 1-bolt posts to various saddle rail dimensions. - To retrofit WCS 1-Bolt carbon seatpost - Material: 7050 alloy

Complete clamp kit to adapt WCS Alloy 1-bolt posts to various saddle rail dimensions. - To retrofit WCS 1-Bolt alloy seatpost - Material: 7050 alloy, stainless steel bolt

- SRAM, Road pulleys, 11.7515.060.000

The AXS battery cover is a light-weight cowling designed to protect the battery while installed on the derailleur. The AXS Battery Cover fits all AXS mountain bike derailleurs.

Need a non-quick-release seatpost collar with some major bling? Then Salsa's Lip-Locks are just what you're waiting for! Regarded as some of the best out there by those in the know, these sweet seat collars are super tough, easy to use and come in a variety of colors to please your palette.

Shimano Di2 STI lever hoods. - Fits Ultegra ST-6870 Di2 levers only

Shimano Rear Derailleur Pulley Assemblies

Shimano Front Derailleur Braze-On Adaptors allow you to run a braze-on style front derailleur on a frame that doesn't have a front derailleur braze-on mount. Multiple sizes cover fitment on most frames.

This is the correct plug-and-play wire for Shimano's E-Tube Di2 electric-shifting systems. It comes in sixteen different lengths, so choose the one(s) that's right for your Di2 E-Tube wiring configuration.