31.8 handlebar

31.8*35mm Short MTB Stems Bicycle Aluminum Alloy Handlebar Stem for Road Bike Mountain Bike

Wear-resistant MTB Bike Handlebar Stem Aluminum Alloy Mountain Bicycle Ultra-light 31.8/35mm Handlebar Stem Bicycle Accessories

ZTTO Bike Stem 31.8/35mm Lightweight Bicycle Short Handlebar Stem Aluminum Alloy for BMX MTB

BOLANY Mountain Bike Stem 31.8*28.6mm Aluminum Alloy Bike Stems Short Handlebar Stem for Most

Bike Stem 31.8?35x50mm Colorful Bicycle Handlebar Stem for Road Bike Mountain Bike Bicycle Cycling

31.8*50mm Aluminium Alloy Short Bike Bar Handlebar Stem Riser Bicycle Parts(red)

31.8*50mm Aluminium Alloy Short Bike Bar Handlebar Stem Riser Bicycle Parts(black)