What gearing?

[tryanATTAK]

I am doing a 151x15x2.25 track, rail, and tunnel extension. I am going to 8 tooh drivers in the 2.52 pitch but what gearing should I try? I don't really care about top end to much but want real good acceleration and power for climbing in and out of trees. I believe my 07' Attak has 23-40 gears right now (stock ones) correct? If so would it be better to go up 1 or 2 teeth on the bottom instead of going down on the top gear to keep the chain from making to sharp a bend?

 

[chiefsledhead]

I did this same change, 151 with 2". I changed to 21/40 from 23/38 so I could use the same chain. . ( i did it when it was new). I have since changed the chain, and the original didn't have too much wear on either the chain nor the gear. The book says you can go all the way to 19 if you want to. As you said, you give up some top end, but climbing is more important with a 151. I have been real happy with it.

 

[tryanATTAK]

Thanks for your response. Hope you had a Happy Thanksgiving.