At the weekend I cleaned my drivetrain for the first time in a long while. I stripped and cleaned jockey wheels. Installed new chain. This morning, when pedalling hard, the chain seems to slip. It’s not skipping between gears or anything, it’s like it slips forward. What could be causing this? Rear QR not tight enough? Worn cassette? Something else?
At the weekend I cleaned my drivetrain for the first time in a long while. I stripped and cleaned jockey wheels. Installed new chain. This morning, when pedalling hard, the chain seems to slip. It’s not skipping between gears or anything, it’s like it slips forward. What could be causing this? Rear QR not tight enough? Worn cassette? Something else?