Bike Stem 31.8mm / 35mm – 50mm MTB Handlebar Stem for Road & BMX
Bike Stem 31.8mm / 35mm – 50mm MTB Handlebar Stem for Road & BMX
A compact stem. A precise fit.
The UPANBIKE 50mm bicycle stem pairs a compact profile with a four-bolt handlebar clamp. This Black*50mm option is intended for compatible handlebar and steerer dimensions; check both interfaces before fitting.
The measurements that matter
The supplier specifies a 50mm length measured centre-to-centre between the two clamp holes, a 28.6mm (1-1/8 inch) fork steerer diameter, and compatibility with 31.8mm or 35mm handlebar clamp diameters. Match the correct clamp arrangement to your handlebar.
Four-bolt handlebar clamp
The removable faceplate uses four bolts to hold a compatible handlebar. The product photos show the black UPANBIKE stem with a red insert at the handlebar opening. Use the correct fitting configuration and the supplied installation guidance.
Check the whole cockpit
For mountain bikes, road bikes, BMX and fixie builds, compatibility depends on the actual clamp diameters, steerer arrangement and available space. Confirm cable clearance and handlebar position throughout steering before riding.
Fit with care
Follow the stem, handlebar and fork manufacturers’ installation instructions and tightening requirements. Have a qualified bicycle mechanic fit the stem if you are unsure. Check that the steering and handlebar are secure before use.
Bike Stem 31.8mm / 35mm – 50mm MTB Handlebar Stem for Road & BMX