Originally Posted by Chris Furman

Ok.. our club runs 17.5 without boost.. so FDRs are around 3.6-3.9. Which means I need to run a 98/50-54 - 64p. So.. will a standard PRS spur fit the TC6? Am I going to be able to screw the motor in? Do we need special gears for these? I noticed that the 87t-48p has holes in the spur so you can put a wrench thru it.

Any advice would be great.

thanks,
Chris