I HAVE MY 105 jet and by thursday I will have my K&N air filter

[Shaka]

Sid, the stock gear ratio is 10.65:1.  The primary gear is 13/40, secondary is 13/45.

[sidthesloth]

Cheers mate, will get to it one day.

[Shaka]

All in good time!  I think you've got more pressing issues to deal with first!

[sidthesloth]

G'Day customx22, Shaka and zombie are helping me with a problem with my cylinder and shaka has asked about the power and rev range these v8 exhausts are designed for. I was wondering if you could help us with this please? All help is much appreciated. The thread is ZX50 in the general discussion section.

[customx22]

OK heads up the v8 i have is typhoon that for stock motor to 72cc but low end to  mid-range pipe.the other v8 is the hurricane this is a mid-top end pipe this is the one you should get.i have the typhoon.it a decent pipe.i just bought the ultimate pipe PG LONG mid-top high rev pipe will get you about 5mph more that v8 hurricane.ways to tell which v 8 you have is if you don't have the badge you have a typhoon and the one with badge is hurricane but also check the length of the pipe the hurricane is longer because it has a chamber in it.another thing if the exhaust hole is 33mm you have hurricane and if its 28mm you have the typhoon   

[customx22]

where did you buy it from? how much was it $200 is the hurricane the one you want.the typhoon is not really that good but ok

[sidthesloth]

G'Day customx22, mine has the badge, inlet pipe is 30mm and canister length is 275mm (from weld to weld). Any idea what rev range that would be? At a guess I would think mid range!? It would be nice if they would give a little info with these items. I must learn to ask more questions before buying.