- Local time
- 6:29 AM
- Oct 2, 2021
That loose fit..even a tiny bit of factory tolerances can cause stress at certain points along the axle.Something less thought of that can also cause an axle/bolt/stud to snap is loose tolerances on the spacers and/or bearings when there is stacking and high stress perpendicular to the shaft. I used to see this a lot when guys would use random washers to space a rear shock they adapted from another motorcycle on to one of the bikes I own. Meanwhile, I have perfect fitting spacers, and never broke a bolt. The poor fitment and looseness between the points of contact allow for the shaft to experience high stress in localized regions, and over time the metal fatigues enough it can break - especially low grade metal like the "steel" the axles are made out of.
I don’t mean to dog on mags. I’ve just seen a few mag axles break in my short time in this hobby. There’s something common to all this.
Guys spend good money on a set mags as an upgrade to cheaper spoke wheels with the thought it’s much safer. It seems the common failure point when there is a failure is on the axle. Maybe a better grade of steel to replace the stock mag axle will stop the failure on the axle.
I have no room to talk. I’m still on Walmart wheels. Maybe this thread will motivate me to make the necessary changes. My justification to my current wheels is this…I never travel at high speeds for long. I personally do not feel anything on my bike is suited to support rpm’s of 13K and the speeds thst go with it….90% of the time I’m at speeds of 25 or lower. Another 8%-9% is at 30-35 mph and on rare occasions I’ll get to the 50+ mph speeds testing changes. It’s that 1% or 3-4 seconds of high speed that may end up getting me too.