Handlebar Shims

Color+ Shim From/To + Length:Silver 25.4/31.8 40mm

Oh shims. So denigrate. So misunderstood. The woeful life of an underrated bike bit.

Here’s the stem shim low down. They work fine, if you use ‘em right.


Use them with 2 or 4 bolt stems

Use them with steel or aluminum handlebars

Use a shim that is wider than your stem clamp

Do torque your stem bolts properly


Stack shims. IE don’t use a 31.8 to 25.4 shim and then a 25.4 shim to a 22.2 shim on the same stem. That's a recipe for failure.

Use 4 piece shims.

Use a shim with Bosco bars

We stock 31.8 to 25.4 + 26mm silver and black shims from problem solvers and 26mm to 25.4 steel shims from Nitto.

You can ride these off road, if you follow our do’s and don’ts.

Shipping Information

Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.

You may also like