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also the Thunderbird Triples had a spoke wheel that would fit, but in 17"


That's been my route, with a 140/80-17 front to match up with the 200mm wide rears with a 5.5x16" rear rim. Any rim bigger than 18" on a TBird Hub and the drilled spoke mount holes on the hub, you get an angular spoke deflection that looks somewhat wonky and impossible to hide. America hubs make for a better looking taller rim changeout.