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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Steveboot on March 03, 2026, 08:18:04 AM

Title: 1992 K75 Cast Wheel
Post by: Steveboot on March 03, 2026, 08:18:04 AM

New to me K75. Was cleaning the wheels and noticed what looks like a hairline crack in the rear wheel at the base of one of the "spokes". Very small and can't feel it. Wondering if these are prone to cracking or whether the finish is? Any experience out there?

Title: Re: 1992 K75 Cast Wheel
Post by: jiggseob on March 20, 2026, 11:39:46 PM

Those cast / machined alloy wheels have a clear-coat of platic over the coloured and the "machined" surfaces.  That coating may be cracked, and the aluminum is fine.  I've never heard of the wheel being cracked.