The Problem Solvers Clamp-On Water Bottle Cage Mount makes it easy to carry a bottle on your handlebars so you can have even more refreshment on rides. It also comes in useful on frames without room for bottles, like smaller frames and some kid’s bikes.

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.

- Allows quick chain removal without tools - MissingLink 410HD|~|1sp|~|BMX Heavy Duty chain|~|9.4mm|~|each|~| - MissingLink 410|~|1sp|~|BMX|~|8.6mm|~|each|~| - MissingLink II|~|8sp|~|all|~|7.1mm|~|6/card|~| - MissingLink-9|~|9sp|~|all|~|6.6mm|~|6/card|~| - MissingLink-10R|~|10sp|~|KMC, Shimano, SRAM|~|5.9mm|~|6/card|~| - MissingLink-10CR|~|10sp|~|Campagnolo only|~|5.9mm|~|6/card|~| - MissingLink-11|~|11sp|~|Campy, KMC, Shimano|~|5.5mm|~|6/card|~|

The Problem Solvers Locking Headset Spacer is handy during headset servicing for keeping the fork in place when the top cap and stem are removed. It's also great for keeping the fork in the frame when you're shipping your bike in a box, which usually requires removing the stem and bars. This quality piece is for 1 1/8-inch forks and is CNC machined of light, durable 6061 aluminum and has a stainless-steel bolt.

Turn your geared bike into a singlespeed machine with Surly's Singleator. The Singleator mounts to your derailleur hanger and provides a smooth, quiet and adjustable means of tensioning the excess chain slack on any bike. It's made from strong forged steel and features a triple-sealed spring, large-cog capacity, chain guides, fully-adjustable chain line, floating pulley, and a stainless-steel pivot bushing. And, it works with both BMX and standard chains.

Shimano's In-Line Brake Cable Adjuster with quick release allows you to make changes to your road caliper brake's cable tension or open a brake caliper's arms to remove a wheel.

The Problem Solvers Cassette Spacers are made of light and durable anodized aluminum and come in different thicknesses for correctly spacing various brand and model cassette cogs. Measure and match your spacers to choose the right width.

Problem Solvers' 11-speed Freehub Spacer converts your 11-speed freehub body to accept a 10-speed casssette. Use this spacer if you are running a 10-speed drivetrain on a new set of wheels with a 11-speed freehub body. The spacer is 1.85mmm thick.

A well-exercised dog is a happy dog, so give Fido a good workout while you ride! Sunlite's Dog Leash consists of a metal bar that mounts under the rear axle bolt or quick-release and straps to your chainstay. This keeps the center of gravity low so you stay stable if your dog pulls to one side. The bar is long enough to keep your pup away from the bike, too.

The Problem Solvers Quick-Release Nut Light Mount is an ingenious solution when your handlebars are too crowded to accept a light. This fine CNC-machined aluminum post simply screws on in place of your left, front quick-release nut to provide a great place to mount your light. Lower light mounting improves your depth perception and shows more details of the road condition ahead, too.

If you're suffering from a slipping seatpost, Surly has the remedy. The Constrictor Seatpost Clamp grabs your post tight and hangs on for dear life. It's machined from anodized aluminum billet, uses an 8mm bolt for ultimate strength, and can accommodate a rear cantilever brake hanger.

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!

• Fits all Trek kids' bikes • Super-strong steel derailleur guard

Power links provide tool free chain assembly. - Chain Compatibility: SRAM - Reusable: No

- Replacement chain pins for Shimano 11-speed chains - Compatible with CN7900/7801 chains - 3 pins per pack

The Problem Solvers Brake Mounting Nut is for front caliper brakes that take recessed fixing nuts. This chrome-plated steel Allen nut comes in 2 long lengths so that it will grip enough threads to tightly fasten the brake on even the thickest of fork crowns.

Dimension Basic Track Cog Lockring with 1.29-inch x 24 tpi left-hand thread. - Stainless steel - Fits all but Campagnolo and Miche hubs - Not compatible with Phil Wood hubs

- M8 Top Plate Nut

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.

Greenfield's Kickstand attaches quickly and easily to most bicycles and provides a safe and convenient way to park your bikes at home and on the road and trail. It's also durable, lightweight, and looks great on any bike. Plus, it's made of a special non-corrosive aluminum and is built to last. You'll want one on all your bikes! - For bikes without factory mounting plate (includes top plate and bolt) - 285mm (for bikes 22" and under) - Certified Non-Corrosive Casting - Snap Action Mechanism - Non-Slip Clamping Surface

- Half-link connector allows you to add or subtract half of one link (1/2 inch) from the chain in order to optimize chain tension - Uses standard chain pin connector and tool

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.

Greenfield's Kickstand attaches quickly and easily to most bicycles and provides a safe and convenient way to park your bikes at home and on the road and trail. It's also durable, lightweight, and looks great on any bike. Plus, it's made of a special non-corrosive aluminum and is built to last. You'll want one on all your bikes! - 285mm (for bikes 22" and under), 305mm (for bikes 22" and over) - For bikes without factory mounting plate (includes top plate and bolt) - Certified Non-Corrosive Casting - Snap Action Mechanism - Non-Slip Clamping Surface

ReMatch adapters are designed to integrate different generations of Shimano Brakes to Shimano Shifters. Rematch Adapter 1.1 connects Shimano I-Spec A/B shifter to I-Spec II brake. - Made from CNC Machined T6061 Aluminum - Anodized Black - No additional hardware needed ReMatch 1.1 is NOT compatible with Deore M610 or SLX M670 shifters

Compatible with Profile Design's T+ carbon, T+ aluminum, and ZBS aerobars. Make sure your fit is totally dialed with the appropriate rise for your aerobars.

Replacement pads for the F-40 armrest. - F-40 Standard replacement pads are 16mm thick, built with moderate thickness to provide comfort in both training and race conditions - Made of EVA foam with anti-bacterial/anti-microbial Lycra cover

Problem Solvers Deckster pedal adapters. Converts SPD-compatible pedals to platform pedals for casual cruising. • Works with 2-bolt, SPD-style cleats, such as Time, Shimano, Crank Brothers, Wellgo and others. Not compatible with Speedplay • Cleats not included • 85 x 95 x 10mm platform • Hardware included, cleats not included

Whether for derailleur clamp clearance, tire clearance, or personal preference, sometimes it can be advantageous to run the wheel further back in the dropouts. Monkey Nuts install into Surly horizontal dropouts to make spacing the wheel back easy. There are 3 different sets depending on the type of dropout and axle configuration the dropout is intended for. Simply select the correct version of Monkey Nut, install it into the frame, and slam the wheel all the way forward. Bang, done.

Greenfield's Stabilizer Rear-Mount Kickstand attaches to the rear of the bicycle so it's perfect for bikes that won't accept regular kickstands. It's also durable, light and nice looking. Plus, it features non-slip clamping surfaces, is made of a special non-corrosive aluminum, is light, and is built to last and last.

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.