gearing help

[Adam_Lock]

hi

was after soon help gearing 12x2 core touring and 19T reedy spec (silver can) motors, for a midium to large track indoors on carpet????

any help would be great

Cheers

[tom_goodyear]

I assume you are running a TC3.
Using the 72t spur gear try using a 20, 21 or 22 tooth pinion. Also if possible see what gear ratios other drivers are using. If you need to work out your final ratio use the following method:

(Internal ratio) x (Teeth on spur / teeth on pinion)

The internal ratio for the TC3 is 2.5

Hope this helps.

[Joost van Leeuwen]

For the 19T start with 25T for a small track upto really big for a large track ;)

[tom_goodyear]

25!
I use a 22/23 on a P2K2 Pro indoors on quite a small track (10 second laps), so with a modified or 19 a couple of teeth lower should be good.

[ColinO]

Yes 25.

I use either 25/69 or 26/69 on largish carpet with Reedy 'Spec' 19 turn, just to keep up on the straight.