How to Replace Rear Axle on your Mountain Bike – A Guide for Cyclists
First, remove the rear wheel from the bike and disconnect the brake caliper. Then, using a chain whip and cassette removal tool, remove the cassette from the old axle and transfer it to the new one. Next, remove the axle from the wheel and install the new axle. Finally, reinstall the cassette and reattach the wheel to the bike, ensuring proper alignment and tightening the axle nuts or quick-release skewer.