Upgel/Bike maintenance

Fix your own bike.

Step-by-step repair and maintenance guides written for the person holding the wrench — with the numbers, the torque figures and the mistakes to avoid.

39 guides7 topicsNo sign-up, no video, no ads on the fix

Contents

Fix flats, change tires and tubes, patch punctures, repair a tubeless setup and true a buckled wheel — with the pressures and wear limits that matter.

Adjust rim and disc brakes, replace worn pads, cure rubbing and squealing, and run new cables — with the pad thickness limits and clearances that matter.

Clean, lube, shorten, remove and replace a bike chain, plus cassette cleaning and dropped-chain fixes — including the wear figure that saves your cassette.

Index your gears, set front and rear derailleur limits in the right order, and shift without crunching the drivetrain — starting with what is actually wrong.

Remove and fit pedals the right way round, free a seized thread, and pull a crank without damaging it — including which crank puller your bike actually needs.

Set saddle height properly, swap a saddle without losing your fit, and understand why bike seats hurt — and why a softer one usually makes it worse.

Wash your bike without forcing water into the bearings, and work through a full home tune-up checklist that finds problems before they leave you walking.