Whenever you switch a part on your bike, it’s important to do your homework. A coworker of mine once wanted to change the stem on his bike. He got one, went on the put it on the bike, only to realize that his handlebar wouldn’t fit. He had purchased a stem with a 31.8mm clamp. Unfortunately, his bike was equipped with a 35mm handlebar. It’d be easy to laugh and say what a noob. But we can’t all be experts in everything. I’m certainly not. After several winters of riding my fat bike, the axle of my crankset has worn where the bearings are seated. Without tightening the pre-load adjuster, there was noticeable play. A tightened pre-load adjuster doesn’t remove that play; it only hides it while the bike is in the work stand. The play is still there under every pedal stroke and will only worsen over time. It will also lead to premature bottom bracket failure. It was therefore time to replace the axle. Because I chose a SRAM XX1 carbon crankset at the time, a simple axle change isn’t possible. The axle and the non-drive side crank arm form an inseparable unit.
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