ThePromax Impact is a top-load BMX stem, cold forged from the highest quality 6061-T6 aluminum then CNC machined to refine the shape and further reduce weight.

This stem has a 31.8mm clamp diameter. *IT DOES NOT FIT STANDARD BMX HANDLEBARS!*

Clamp: 31.8mm
Reach: 48mm
Stack Height: 30.5mm
Posted Weight:8.5oz
Color: Blue