In the generation revision before this one, Zipp touted the benefits of its Total System Efficiency approach to wheel design. The idea is that it attempts to balance the various factors influencing sp

These new carbon wheels feature a modernised rim profile designed to make riding faster and easier. The V-shaped outer rim has a bend halfway up the rim wall, designed to create a boundary layer of ai

The latest S5 delivers aero gains, reduced weight and enhanced comfort

‘A murderous climber, always the same sustained rhythm, a little machine with a lower gear than the rest, turning his legs at a speed that would break your heart, tick tock, tick tock, tick tock.’ So

This version of the Rave SLR has been designed with racing at its core – not that the original model was a slouch when it came to going fast. However, while it’s an excellent racer, there’s more to th

HELEN WEBSTER 220’s editor is also a qualified open-water swimming coach. ROB SLADE 220’s resident adventure seeker and former staffer. EDWARD PICKERING Cycling author, also races run distances from m