The Faster Cracker Posted March 31, 2009 Report Posted March 31, 2009 so i am going to either order a stock tranny or straight cut gears from jeff at FAST tommorow. Question?: Why would i want to run straight cut gears? Is it worth the price diffrence? What gains are there? What disadvantages are there? Quote
Hilarious Posted March 31, 2009 Report Posted March 31, 2009 so i am going to either order a stock tranny or straight cut gears from jeff at FAST tommorow. Question?: Why would i want to run straight cut gears? Is it worth the price diffrence? What gains are there? What disadvantages are there? straight cut gears mainly relieve stress of the crank and bearing on the pto side, mainly on HIGH HORSEPOWER engines. you can also get them in different ratios to change your gearing a bit, helps dragging asphalt. i have them in my 4mill cub. was told that i didnt need them and got them anyway for piece of mind. depending upon where are intend to go with your engine, the money you are looking at spending on the straight cut primarys could be better utilized somewheres else. Quote
uwenr Posted March 31, 2009 Report Posted March 31, 2009 so i am going to either order a stock tranny or straight cut gears from jeff at FAST tommorow. Question?: Why would i want to run straight cut gears? Is it worth the price diffrence? What gains are there? What disadvantages are there? My bike is in my sig and running stock gears. I was told 100hp and above is a good idea to run straight cut gears. Quote
swrbansheeboy Posted April 2, 2009 Report Posted April 2, 2009 basicly straight cut gears are on the output shaft of the crankshaft and the input shaft of the cluch (mounted to the back of the clutch basket) and they replace the helical cut gears that come stock. straight cuts... helical cut.... basicly the helical cut gears try to "walk away" from each other when the power is applied causing alot of side load on the crank bearings as well as the input shaft of the transmission. a set of straight cuts and a tz bearing on the output side of the crank are pretty much the cats ass if you've got the coin to do it while your into it... Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.