Rubbee consists of a polyurethane roller wired to a 14.4-volt battery pack. The doohickey presses the roller against the back tire of the bike, propelling it with the force of wheel-on-wheel friction ...

It's not the best electric bike but it is probably the best cheap electric bike, taking a stripped-down approach that means it doesn't feel like too many compromises have been made to get the ...

[Tom Stanton] wanted to see if supercaps have any practical use on e-bikes, and built a DIY electric motor in the process. One of the problems with supercaps is the rapid voltage drop during ...

The best cheap e-bikes make for a budget-friendly alternative to the best electric bikes, which are brilliant but also expensive. So if you want an electric bike that won't break the bank ...

Overall, if you're looking for a cheap, folding electric bike, I don't think you can go wrong with the Xiaomi Mi Smart. Halfords offers up to 12 months interest-free credit on it, lifetime safety ...