rear sprocket

[KATRIDER98]

hello all..well my question is,i am wondering what year sprockets for the rear of my `98 kat 600 are interchangeable.

lookin to use a 45t rear

[Kreylyn]

hello all..well my question is,i am wondering what year sprockets for the rear of my `98 kat 600 are interchangeable.

lookin to use a 45t rear

89-06 3 spoke wheel models all use the same sprocket mounting and OEM 530 chain setup. The tooth count is customizable for most manufactures for at least a small range of choices. GSXFJim can make you any size/shape/tooth count sprocket you want and even offers customizations in design/colors for really good prices. You should pm him.

Krey

[steves]

It's a pretty standard pattern.

[91_gsx600F katana]

I vote gsxfJim as well. I have a 45 tooth steel rear on mine but it came with the bike. If I were to get one I would get one from gsxfJim.

You know that going down from a 47(stock) to a 45 that you will be slowing the bike down and decreasing your cruising rpms right?

Krey maybe u could shed some light for me. Stock 600 is 15/47 now one of the PO before me had put on a 14/45. Basically going from a 15 to a 14 is like dropping 3 teeth in the rear and will improve pickup... But then why drop 2 teeth in the rear from a 47 to a 45? Aren't they countering each other? Basically they equate out to dropping 1 tooth but stressin the chain more with the 14 front sprocket?

I decided to swap the front out to a 15 and keep the 45 rear for now and see how I like it.

[KATRIDER98]

i was thinking about jus being a lil more tourqueie off the light,thats all..someone told me about gearingcommander.com

[92xjunker]

I vote gsxfJim as well. I have a 45 tooth steel rear on mine but it came with the bike. If I were to get one I would get one from gsxfJim.


You know that going down from a 47(stock) to a 45 that you will be slowing the bike down and decreasing your cruising rpms right?

Krey maybe u could shed some light for me. Stock 600 is 15/47 now one of the PO before me had put on a 14/45. Basically going from a 15 to a 14 is like dropping 3 teeth in the rear and will improve pickup... But then why drop 2 teeth in the rear from a 47 to a 45? Aren't they countering each other? Basically they equate out to dropping 1 tooth but stressin the chain more with the 14 front sprocket?

I decided to swap the front out to a 15 and keep the 45 rear for now and see how I like it.

I think your backwards on your gearing smaller rear gear=faster wheel rpm to engine rpm but, lower torque, slower take off. larger rear gear= slower wheel rpm to engine rpm but, more torque, quicker take off. ratio 14/45 vs 14/47.

[TRPUT]

Going from 15/47 to 14/45 achieves very little. You're right - they cancel each other. 1 T on the front equates to about 3 on the back, so 14/45 is equivalent to 15/48.

If you are chasing a standard size - eg 42T - 47T rear sprocket, they can be had quite cheaply off the shelf. Bike Bandit had them for around $28 late last year.

http://www.bikebandit.com/jt-sprockets-steel-sprocket?m=9761

If you want outside the stock range, talk to Jim.

And yes, if you want more acceleration, you need a larger rear sprocket or smaller front or smaller front and larger rear - however most do not recommend dropping teeth at the front.

[Kreylyn]

I vote gsxfJim as well. I have a 45 tooth steel rear on mine but it came with the bike. If I were to get one I would get one from gsxfJim.

You know that going down from a 47(stock) to a 45 that you will be slowing the bike down and decreasing your cruising rpms right?

Krey maybe u could shed some light for me. Stock 600 is 15/47 now one of the PO before me had put on a 14/45. Basically going from a 15 to a 14 is like dropping 3 teeth in the rear and will improve pickup... But then why drop 2 teeth in the rear from a 47 to a 45? Aren't they countering each other? Basically they equate out to dropping 1 tooth but stressin the chain more with the 14 front sprocket?

I decided to swap the front out to a 15 and keep the 45 rear for now and see how I like it.

The issue you guys are having with wrapping your brain around why... is because you think the OEM setup was standard for all the bikes.

Unfortunatley... it wasn't.

For example, the pre 600 had 45 and 46 tooth rear sprockets put on at the factory.

Combine this with the pre 750 and post kats also having different sprockets as well, and you get... confusion. This confusion pushes over even into information resources. For example, gearingcommander.com does not tell you there were more than one possible option for the pre 600 spockets.



In other words... there isn't really any telling what the PO wanted to do.

FYI...

OEM pre 600 used a 14t front sprocket. I've verified 14/45 and 14/46 OEM setups on them.

OEM Pre 750 used a 15t front sprocket. I've verified 15/45 and 15/47 OEM setups on them. This has been rumored to have also been carried over to the post 750s, along with the possible variance.

Krey

[91_gsx600F katana]

I think your backwards on your gearing smaller rear gear=faster wheel rpm to engine rpm but, lower torque, slower take off. larger rear gear= slower wheel rpm to engine rpm but, more torque, quicker take off. ratio 14/45 vs 14/47.

Wait! So your saying that going from a 47 to a 45 in the rear is not dropping the rpm and losing tq? When you decrease the rear gear size the wheel speed will slow down and rpms will drop relative to engine speeds and will decrease tq due to the ratio change. Thus lowering rpm in all gears.

Larger rear sprocket means that the wheel will spin faster in relation to the engine speed and multiply tq. As the rear wheel will spin over faster which gives the illusion of enhanced performance of the motor and the feeling of more engine tq, when really all u did was change the ratio or leverage of the motor in relation to the rear wheel.

The issue you guys are having with wrapping your brain around why... is because you think the OEM setup was standard for all the bikes.

Unfortunatley... it wasn't.

For example, the pre 600 had 45 and 46 tooth rear sprockets put on at the factory.

Combine this with the pre 750 and post kats also having different sprockets as well, and you get... confusion. This confusion pushes over even into information resources. For example, gearingcommander.com does not tell you there were more than one possible option for the pre 600 spockets.



In other words... there isn't really any telling what the PO wanted to do.

FYI...

OEM pre 600 used a 14t front sprocket. I've verified 14/45 and 14/46 OEM setups on them.

OEM Pre 750 used a 15t front sprocket. I've verified 15/45 and 15/47 OEM setups on them. This has been rumored to have also been carried over to the post 750s, along with the possible variance.

Krey

Okay. So basically there is no standard. I knew that the 750s used a 15/45 setup since they had more available low end tq and didn't need the hearing to get up and go like the 600. But I guess it's a crap shoot!