If I just read right in another thread the Tbird and R3T share a different spacing than our bikes or the R3s for the risers. So I guess the answer is no the Tbird T bars won't work. The spacing is the same has HD on our bikes though so you have a large selection to choose from to fit some T bars or other risers/bar combo. The only thing is HD uses 1/2" studs and we use 10mm so you either need to make or buy adapters or drill your tree to fit HD risers.

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