Thus around the start of the pandemic I splashed out again and bought a Swytch electric upgrade kit for it, and after a few logistical and life upheavals I’ve finally fitted it to the bike.

At 4.5kg, with an added 600 grams for the DiskDrive® brake rotor, Skarper is double the weight of the Swytch Bike Air Kit we tested last year, but there are no wires or batteries taking up ...

It adds around 4kg to the weight of your bike. The big rivals here are Swytch and Cytronex. The latter is a better system but it's also a lot more expensive, starting at around £883, while the £ ...