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@andos
My non drive side (square taper) crank arm seems to become loose after a week or so and I can't figure out what's up with it. I've done all the normal things. Remove bolt, remove crank arm using correct toolage, cleaned, greased and put it back on very tightly. Then after riding for a week it seems to work itself loose again. However, the crank bolt isn't loose...bit baffled by it.
Anyone had the same or got any sage advice.
Thanks
Andrew