Old 07-23-18, 05:13 PM
A Roadie Forever
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Join Date: Oct 2014
Location: Portland, OR
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Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

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Two cautions (from someone who spent real time observing and talking to wheelchair users as well as looking at the wheels from a design point (25 years ago and standards have changed a lot).

One - don't have anything that extends beyond the plane of the outside edge of the tires, handrim and hub your friend is now using. Not one mm. If you do, it will take paint off or do more damage to doors and furniture (or break). Wheelchair users come to know their chairs like we know our bodies. They also adapt either their chair or their surroundings to fit each other. Put a slightly wider wheel on a chair that was custom made to just get into the bathroom of his house and trust me, you will be off his favorites' list very fast. (Custom doorway for a stock chair - same issue.)

Second, consider that wheelchair tires are made with rubbers that don't leave skid marks. Adopting bicycle wheels and tires will make you very unpopular with those who have spent good money for immaculate floors. (I second Clifford's idea of getting the bike hub right, then lacing on a wheelchair rim.)

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