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.

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.

The Problem Solvers Inner Chainring Bolts include 5 of the special threaded chainring bolts that fit into the chainring nuts on your crankset to hold the chainrings in place (chainring nuts sold separately). This type is 8mm long and made of light, durable aluminum.

The Problem Solvers Wide Cable Carrier is 50mm wide and that lets you mount it lower than conventional hangers, which in turn provides greater leverage for additional braking power. This fine aluminum brake-cable carrier is especially handy for cyclocross brake setups. The extra clearance also makes it perfect for use with fenders.

The Problem Solvers Steerer Tube Shims are for installing 1-1/8-inch diameter threadless stems on 1-inch diameter threadless forks. The shim is made of light, durable anodized aluminum and is chamfered on the ends for easy stem installation.

The Problem Solvers Travel Agent amplifies your braking power so that you can mix road, mountain and cyclocross brakes and brake levers. Instead of buying new levers or brakes, just install a Travel Agent and you're good to go. This trick gizmo is made of quality 6061 aluminum and is available with and without a built-in adjustment barrel. It works with cantilever brakes, road dropped handlebars, and Shimano STI and Campagnolo Ergopower levers.

The Problem Solvers Center Lock Adapter Kit allows riders to use 6-bolt rotors on Shimano Center Lock compatible hubs. - Not intended to be used with rotors over 180mm in diameter - Made of extruded, CNC-machined, and broached AL-6061-T6 - Designed for use with Center Lock hubs and 6-bolt disc brake rotors

The Problem Solvers Micro-Adjustable Headset Spacer goes on the fork (it requires 10mm of clearance on the steerer) and locks in place to retain your headset bearing adjustment. This makes it possible to run your fork and headset without a star nut or compression plug. This 2-part threaded component is made of CNC-machined aluminum with a small bolt for tightening, so it's light and durable.