Originally Posted by Jam-ehz

I just fit a 17T pinion from my Mini onto the TA05, and it looks like it has enough space on the mount for a 16T for sure...

Would be a good ratio for 19T and mod motors?

I guess they were just too lazy to put out the whole pinion chart on the sheet. They wanted to make the 105T option look that much more desirable. Sure, you get a great range of ratios, but they can strip out a lot easier if you don't mesh them right... plus they're more expensive than the regular AV pinions.

Pulleys: 36/16 = 2.25 IR
Spur: 70T
Pinion Spur/Pin Final Ratio
16 4.38 9.844
17 4.12 9.265
18 3.89 8.750
19 3.68 8.289
20 3.50 7.875
21 3.33 7.500
22 3.18 7.159
23 3.04 6.848
24 2.92 6.563
25 2.80 6.300
Does anyone sell 48-metric 26+ pinions? It sure looks like there's enough mount space to fit larger ones than 25. Although our TCS rules limit the max ratio to 5.7, it looks like we may never hit that mark with the TA05.

Theoretically, we could see 3 more with aftermarket pinions...
26 2.69 6.058
27 2.59 5.833
28 2.50 5.625


I know people were looking for larger ones for the TB-02 and the 52T Spur... any luck?