Prototype Rear
BMX freewheels, 3/32" chains, and rear derailleur pulleys. Everything else was fabricated from brass, wood, aluminum, and a variety of other ...
BMX freewheels, 3/32" chains, and rear derailleur pulleys. Everything else was fabricated from brass, wood, aluminum, and a variety of other ...
black anodized forged aluminium upper body - metal-carbon cage - lightened special rubber pulleys - bottom pulley with ceramic bearings - top ...