T2 gear ratio for 3.5R

Dear all brothers

Would you mind to tell me how to obtain the suitable gear ratio for 3.5R? Since the internal gear ratio of T2 is 1.7, it is necessary to use 17T pinion gear to obtain final gear ratio above 11.5. However, no 17T pinion gear is available in the market. Please help help

Many Thanks

大齒用88,細牙12用齒比可去到12.4,如細牙用11齒比可去到11.5,市場沒有貨唯有等.你用17細牙齒比點可能做到11.5齒比?

你是否用64?可否改用48?

原帖由 雷之子 於 2006-12-29 12:34 發表
你是否用64?可否改用48?

48可用3.5?

Team Losi 有出 48pitch 12T 細牙, 配88T大牙, final ratio = 12.466...
3.5R ok?