Frank pro x
Member
is someone rolling with sprokets 9 teeth with a pitch of 2.86 on there axys ? is that I have enough room for my stock cobra track ?
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Should be 8.19 diameter with 9 tooth 2.86 pitch, Pie D equals circumference so take 9 times 2.86 equals 25.74 and divide that by 3.14 equals 8.19 which is the diameter. Pie is always 3.14me and mr indy were just talking about that on the 2.86 pitch
I don't have the 9 tooth measurements on hand
thanks for the formula .Should be 8.19 diameter with 9 tooth 2.86 pitch, Pie D equals circumference so take 9 times 2.86 equals 25.74 and divide that by 3.14 equals 8.19 which is the diameter. Pie is always 3.14
there are two main ones..better rolling resistance and the gearing change , dropping ratio and not giving up top speed from the gear down, its the best of both worlds..example if you like the 1.74 ratio and you want to keep that with 9 tooth drivers,you will be about a 1.94 ratio in the chain case..thats where your mid range will pick up huge,and turn to turn on the trail.without sacrificing top speed..What is the benefit of running a 9 teeth with the 2.86 pitch??
Your best bet is a driver from Avid, what ratio do you want to run? And don't get confused between 9 tooth 2.86 and 10 tooth 2.52..Ok!! so to take full advantage of it, we must gear it down much more than 1.73-1.76, if i understand correctly!?
It's very tempfull, i wonder if an oem part can be used?
Your best bet is a driver from Avid, what ratio do you want to run? And don't get confused between 9 tooth 2.86 and 10 tooth 2.52..
Md. Indy... the speed comes from lighter weight and short lug height, it's all about efficiency and resistance. A 1 inch track will move less air then a 1-1/4 track. Most manufacturers in the day built low lug tracks that were 2:52. Now with 2.86 and higher the lug height has increased. So if you could find a 2.86 1 inch track it would be lighter then a 2.52 1 in track because of fewer bars, this could easily be faster then the 1 in 2:52..
very nice set upView attachment 2137This is one step further then just 10 tooth drivers and 8 inch rear wheels.. 144 inch hacksaw in a 137 skid . I used to run 24/40 with 8 tooth 2.86.. with the 10s I run 23/43..( 1.86) so it works out to 1.67 once you factor the big drivers in. The 1 inch track is huge for acceleration to compliment the gearing and big drivers..