hi guys just a quick question, what sierra diff type would i be best using for my v-twin suzuki engined gts? obviously i've not got the rev's of say an R1 so what do ya reckon woukd be best suited? kev

educated guess would be a 3.38 or a 3.14 to give it anything like a top speed but it does depend on its primary drive ratio,
it uses the same sprocket sizes as a zx10r but revs 3000 rpm less and is about 30+ mph down on speed so i would guess at a primary of 1.6 so you will probably need a 3.14 just to give it a decent top end of about 120
But this is all thory in my head so could be way off, i think chris gamlin has a gearing calculator link on his profile maybe worth a look

Rich

ps you still in Matlock

id just start off with a 3.62 and see how it goes, my kitten was geared at 3.08 (chain driven) but struggled to pull 5th and sixth but is now around 3.6 and will just crack a ton (10" wheels ) but has gone from 15 second 1/4 to 13.5 . revving over 9k is a waste of time mine pulls much better now but i have a progressive nos system to make up for the lack of hp ,my engine is an early tls with the most agressive ecu mapping and made 118 at the wheel

have a look on the tube under reliant kitten and savour the lovely noise i run seperate pipes so i get the flames on the overrun

[Edited on 16/12/07 by froggy]

hi rich, yeah still in matlock, seen you've had a change!
decided now motorcross season is now over that i need a new toy!!! how you getting on with yours?

new cars awesome Kev,finished and reg'd sept this year on a 57 plate so not done too many miles yet but really pleased with it.
glad someone with a twin has posted up as theory and practice are never quite the same. TL1000 is probably one of the bikes i wished i'd owned.
V twin bec 7 a fairly unique combo on here

Rich