The original OSPW (oversized pulley wheel system was launched back in 2015 and the brand unveiled its aero OSPW in June last year. OSPW systems have become a popular, if expensive way to improve ...

CeramicSpeed outfits its new Oversized Pulley Wheel System with two enormous 17-tooth pulleys that will supposedly save nearly 2.5W over ... CeramicSpeed's new 17-tooth pulleys look comically large.

Oversized drivetrain pulley wheels are popular on road bikes, but less so, on mountain bikes. They can make your drivetrain too vulnerable to damage, in very rocky terrain. Designers at a boutique ...

Like any pulley, it works by trading ... Pocket Sized Wheel-less Pulley. Like any pulley, ... winching and tying down loads (even airplanes). Available in small for $25 (3/8" rope max) and large ...