The stainless balls at the center of the Kolossos ST bearing only result in a friction increase of “a fraction of a watt” ...

An oversized pulley wheel is, by popular definition ... There’s also a “a library of step-by-step video guides covering essential bike maintenance topics, such as fixing a flat tire, mounting ...

The cylinder is essentially made from mesh that’s zip-tied to bicycle rims. A 1/4 horsepower motor mounted up top uses that v-belt pulley to spin the cylinder’s rims against casters that are ...

But what if your bike is equally expensive ... with absoluteBLACK’s updated HOLLOWcage Carbon oversize pulley wheel cage. At $419 or £339, it certainly warrants protection from the rain!