Old 12-04-17, 10:16 AM
Dan Burkhart 
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Location: Oakville Ontario
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As road rims move toward wider profiles, it appears they are also making the rim center shallower. We are seeing issues with tire mounting with a lot of these newer rims.
The wheels I build for a local shop's branded line are no exception. The most recent batches of rims I've built have about a 27.5 mm outer width and the center section is almost flat. Mounting tires on these is a real bear, I can tell ya, as there is do deep center well to move the bead into.

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