Dimension 31.8 Stem - 80mm 31.8 Clamp /-7 1 1/8" Alloy Silver. Dimension 31.8 Stems are fully forged 6061-T6 aluminum stems that have a 4-bolt handlebar clamp.

31.8mm can be used with 26.0 bars with additional shim (SM5317)

Dimension stems are not intended for use with carbon handlebars or carbon steerer tubes