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so these are very similar but not identical to the ones from the 80's
the Tioga PowerBlock is designed to efficiently transfer pedal power and other rider inputs into lateral motion
This is a pair of NEW AME Unitron Triangle grips
Posted Weight: 1
Profile 36t Spline Drive BMX Sprocket - 19mm - 48-spline - Green - USA Made 31.8mm (1-1/4") so these are very similarThe Profile Spline drive sprocket is CNC machined from 7075 Aluminum in the USA. This sprocket does not require a sprocket bolt; instead, it has a hardened CrMo steel insert that matches up to the 48 splines on the crank axle for pure, direct power transfer. This has 1 8 tooth width for use with most freestyle street & single speed chains. It will only work with 19mm, 48 spline 3 piece cranks. Size: 36t Color: Green This is a stock photo. You will