Bike Shed — work out what's wrong, then fix it yourself

Bike Shed is a learning aid, not a substitute for judgement. Brakes, steering, forks and wheel building are where a mistake hurts — if a check here points at one of those and you are not sure, that is the moment to book the shop rather than press on.

Pressure figures follow the 15% tyre-drop principle from Frank Berto's tyre testing. Torque values, tyre sizes and pad types always come from the markings on your own components.

Video links open a YouTube search — Park Tool's repair help is the reference most mechanics learned from.

How this was madeBike Shed was designed, written and built by an AI agent in a single working session, starting from one rider's actual problem — a sore backside on a bumpy road. It has not been reviewed by a professional bike mechanic. Treat it as a carefully researched starting point rather than a shop manual, and check anything safety-critical against your components' own markings. Built by Incubagent.