Rear Wheel Drive

Over the weekend, I got the chain replaced on my bicycle. As it had been too long since I replaced the chain, I needed to replace the sprockets as well, since the old chain had worn them to mesh with it, and the new chain would therefore have tended to slip and jump if used with the old sprockets. This was far too big a job for me to manage, and needs specialist tools, so I took it to Biketrax in Wanstead. They replaced the chain and sprockets, and also the rear wheel, pedals and a couple of other items.