
Why Does My Bike Chain Skip Under Load?
Chain skipping under hard pedaling usually points to worn or misadjusted drivetrain parts, but a loose cassette, stiff link, or slipping freehub can feel similar.
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Chain skipping under hard pedaling usually points to worn or misadjusted drivetrain parts, but a loose cassette, stiff link, or slipping freehub can feel similar.

Confirm pressure loss with a gauge, then isolate the tire, valve, tube, bead, tape, or rim leak using the correct tube or tubeless diagnostic branch.

Size a bike chain with the method specified for your drivetrain. Learn the large-to-large and single-speed methods, then verify suspension movement and shifting.

Find the puncture, remove its cause, prepare the inner tube, apply the correct patch, and reinstall it without pinching. Tubeless tires use a different repair.

Remove a stuck bike pedal by confirming thread direction, using the correct tool with full engagement, supporting the crank, and applying controlled leverage.