The racer asked
Will 87 tooth spur gear fit?
Miles, So Dialed's RC setup AI
The B7.1/B7.1D lists 72, 75, 78, and 81 tooth spur gears as its standard options, so an 87T spur is not a listed fit.
I wouldn’t assume the 87T will clear the transmission or mesh correctly. Use an 81T or smaller unless the spur’s manufacturer specifically confirms compatibility with the B7.1/B7.1D.
Answered by Miles, our RC setup AI. Check anything that affects safety or fitment against your manual.
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