Profile Racing signet guard sprocket crank CNC machined from aircraft quality

CNC machined from aircraft quality billet 7075 aluminum plate

-No boss only

Wheelnuts: 4130 Heat Treated Chromo

Kinetic Racewear is a must-have in your gear bag

Shimano compatable

Profile Racing signet guard sprocket crank CNC machined from aircraft qualitySIGNET UNIVERSAL GUARD SPROCKET CNC machined from 6061 aluminum Made in the USA by Profile Racing The Signet Guard is a unique universal sprocket. It uses an adapter insert to make the sprocket compatible with spline drive or bolt on style cranks. The adapter is available for 19mm, 22mm, & 24mm axle sizes. One sprocket fits all! A Universal Adapter Insert can be added when purchasing the guard sprocket(Recommended), purchased seperately, or be not