MCS 39t BMX Chainring - Black - 110mm/130mm 5-bolt - USA Made 180mm Arm length: 108mm

Arm length: 108mm

4" (ISO 406mm)

These pedals have a 9/16" spindle

This 3-piece crank is built to last with durable 4130 chromoly arms

This bottom bracket is designed to convert old school 1 piece cranks (OPC) to sealed bearings

MCS 39t BMX Chainring - Black - 110mm/130mm 5-bolt - USA Made 180mm Arm length: 108mmThe MCS 5 bolt chainring is an all American CNC machined product made of 6061 aluminum. It features an almost perfect round circumference, which will facilitate achieve an even tension of your chain. This chainring has a 110mm 130mm BCD, 5 bolt pattern and fits 3 32" chains. MCS chainrings are MADE IN THE USA! Size: 39tColor: Black