MCS 39t BMX Chainring - Red - 104mm 4-bolt - USA Made 150mm 25" (ISO 406mm) BMXGuru inner

25" (ISO 406mm) BMXGuru inner tubes with standard Schrader valves

Size: 18 x 2

Pressure Rating: 35-65psi

High quality loose-ball  bearings are used for smooth action

Polished parts do need to be periodically polished to retain maximum shine

MCS 39t BMX Chainring - Red - 104mm 4-bolt - USA Made 150mm 25" (ISO 406mm) BMXGuru innerThe MCS 4 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 104mm BCD, 4 bolt pattern and fits 3 32" chains. MCS chainrings are MADE IN THE USA! Size: 39tColor: Red