HEADTUBE ANGLE: 73°

an external zip pocket and a water bottle pocket so it's easy to load up with bigger items while securing those smaller essentials in the front

What set the Proton apart from the Neutron are a 100% CrMo frame

five 6-mm front bolts and five 5-mm rear nuts so they will fit just about any chainring/crank combination

Weight: 1

Profile Column 22mm Crankset Size:160mm HEADTUBE ANGLE: 73°The Profile Column Cranks were built and designed to handle the most demanding street BMX riding. They feature a brand new arm design which is beefier and stronger than the regular Profile Race Cranks, with an upgraded ultra hollow 22mm heat treated spindle reducing weight without sacrificing strength. Made from the finest 4130 chromoly and hand made in the USA, the Profile Column Cranks are built tough. ###section### Product Specs Crank Type: 3 Piece