My old bike, throttle broke, Controller enclosed in Battery case. Motor seems to run Ok but cannot find anyone with the expertise to find out whats' wrong. I live at the End of England. I was looking at this https://www.thesportshq.com/cycling/electric-bikes/cyclamatic-cx4-pro-folding-electric-bike. Came off my 28" a couple of times so downgrading. A bit hilly down here , would this 24v. be up to it?