What pinion and spur should I start with a 21.5 brushless setup?

If you have the high speed gear set and use the original motor mount, you can go with 82 x 49. That will get you in the ballpark of where you need to be.

In case it's not obvious, that's 64dp not the Tamiya 0.6 mod metric pitch gears. 82/49 gets you a 4.35:1 ratio.

Isn't that more of a 13.5 FDR, rather than for a 21.5?

82/49 64pitch....got it.

Thanks for adding that. I should have said that in my earlier post.

Lots of variables to deal with such as size of track, brand of motor, timing, etc. However, 4.35 FDR will get you close to where you need to be.

I'm running a 78/58 64p for 21.5 Novak Vulcan, zero timing.... Which is 3.5 fdr. To get there, I'm using the yeah racing mount and the gear cover over the pinion had to be trimmed... So not exactly TCS legal.

I generally set mine up in a similar way when I run it in the VTA class, but have an extra gear cover and stock motor mount to use for when I do TCS races.

Tamiya is releasing two new hard chassis for the TT02.. one in white and one in blue. Should have done black as well..

47339　　TT-02 Lower Deck (Hard/Blue)
47340　　TT-02 Lower Deck (Hard/White)

Yep, it's cool they are doing those stiffer chassis. But blue or white??

I get the white since they already have a white. I'm perplexed at the blue, it will look too gaughty in my opinion.

Good news that tamiya will release the white
part A and white spur gear cover. Must buy item for those who use the white tub!

I like the color options ...but think i'll stick w/ black.

Question for other TT02 owners. I've had mine built for a while and just recently decided to go looking for the wide axles and realized they're not in the box. Is it possible Tamiya doesn't include them in all the TT02 kits? I have the 99 Monte Carlo Impreza. Maybe the wide/long axles only came in the Porsches? Can anyone confirm?

In which case, I'm now searching for 4 long axles and 2 wide hubs (I still had a pair of the wide hubs attached to the sprue).

I seem to remember to have had them come with the Super GT Nissan GT-R, even though they are not needed for the build.