Wheels Manufacturing Handlebar Shim

Yes, this shim is designed to fit standard 31.8mm stems. However, ensure your stem's faceplate is compatible with a shimmed setup, as some lightweight or carbon-specific stems may not be designed to accommodate shims.

While the shim is made of durable machined aluminum, you should exercise caution when using it with carbon handlebars. Always verify that your handlebar manufacturer approves the use of shims, and ensure you do not exceed the recommended torque specifications for your stem.

The 48mm length is a standard size that provides a secure, stable interface for most stems. It offers enough surface area to distribute clamping force evenly across the handlebar without interfering with the stem's faceplate bolts.

Yes, when installed correctly and tightened to the stem manufacturer's torque specifications, the machined aluminum construction provides a secure, slip-free interface. If you experience any movement, double-check that your stem bolts are properly torqued.

For aluminum-to-aluminum interfaces, a light application of bicycle grease is generally recommended to prevent seizing and creaking. If you are clamping to a carbon handlebar, follow the handlebar manufacturer's instructions, which often require the use of carbon assembly paste.