BMXGuru 35T Aluminum Spider & 4-bolt Chainring Combo - Red over Silver - USA Made 68x110mm It features heat-treated alloy tool

It features heat-treated alloy tool steel construction for a lifetime of use

50" (584mm)

center blocks for tremendous grip and changes up to the block cut edge lug for fantastic cornering traction

This bottom bracket will fit many popular cranks such as Profile Race

It is a knobby-tread MTB/ATB tire for cross country and off-road riding

BMXGuru 35T Aluminum Spider & 4-bolt Chainring Combo - Red over Silver - USA Made 68x110mm It features heat-treated alloy toolBMXGuru 35t chainring spider combo. 35t anodized Red aluminum chainring 23. 8mm bore hole Fits 1 piece cranks or 19mm or 22mm cranks with adapter (not included) Silver Spider, 104mm BCD 4 bolt Chrome plated bolts 3 32" teeth (size works with 3 32" and 1 8" chains) MADE IN THE USA! For 19mm adapter click HERE!