As you can see from the photo above, you're looking at £645 for the whole kit. The kit has been available ... The big rivals here are Swytch and Cytronex. The latter is a better system but ...
Skarper’s e-bike conversion kit has been in development ... Skarper is double the weight of the Swytch Bike Air Kit we tested last year, but there are no wires or batteries taking up valuable ...