S&M Slam Bars 4" (101mm) it has a hardened CrMo

it has a hardened CrMo steel insert in that matches up to the 48 splines on the crank axle for pure

double wall design with wide cross sections and welded "seamless" construction

The Unify seat is really the simplest form of seating you could hope for

allowing the helmet to flex and mould to your head while still exceeding safety standards

With the same clean and classic looks as the original

S&M Slam Bars 4" (101mm) it has a hardened CrMoS&M have updated their tried and true Slam Bars, featuring classic bends and perfect shape. While bars continue to get higher and higher the Slam Bars are here for when you want that slammed look that's undeniably cool. A full 4130 chromoly, straight gauge made in the USA construction gets a strength boost thanks to the 4Q Baked process making the Slam Bars bombproof. ###section### Product Specs Rise: 8" Width: 28" Up Sweep: 1 Backsweep: 12 Bar