Profile "GEN 1" Pro XL Top Load BMX Stem - 51mm - Silver - USA Made 20t It has a pressure rating

It has a pressure rating of 40-65 psi and a 60 tpi casing

The Speedster's tread is designed for the highest speeds with minimal drag on hard pack or paved tracks with a honeycomb center to provide excellent traction in every condition and surface and large diamond shaped side knobs delivering the grip you need in corners and large bowl turns

A supremely comfortable saddle thanks to its flexible

They have 150 engagement points and will work with Shimano type cogs

Profile "GEN 1" Pro XL Top Load BMX Stem - 51mm - Silver - USA Made 20t It has a pressure ratingThe Profile GEN 1 Stem is a 20th anniversary re pop of Profiles original threadless, clamp on stem circa 1995 1996. It is made from 6061 aluminum. Size: PRO XL (51mm reach) Posted Weight: 429g 15. 01 oz Color: Silver Anodized