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37 T rear sprocket
Posted: Sun Feb 04, 2024 6:47 pm
by Trev
Does anyone know where I can get a 37 tooth rear sprocket for an S3a please
Re: 37 T rear sprocket
Posted: Sun Feb 04, 2024 7:09 pm
by SAM
Just 15 front. Leave 41 on..
Re: 37 T rear sprocket
Posted: Sun Feb 04, 2024 7:22 pm
by Trev
SAM wrote: ↑Sun Feb 04, 2024 7:09 pm
Just 15 front. Leave 41 on..
The little handbook states 14 front 37 rear though
Re: 37 T rear sprocket
Posted: Sun Feb 04, 2024 7:43 pm
by Triple Parts
Standard gearing is 14/41 S3 & 15/41 KH400.
As Sam says, the 14/41 will make it a bit livelier.
Re: 37 T rear sprocket
Posted: Mon Feb 05, 2024 12:52 pm
by Baff1960
Hi.
Although its the smoothest triple and has the most torque of all the small triples a 37T rear sprocket is going to make it feel rather lethargic. You will just end up hanging longer in the lower gears and using more down changes to get required momentum.
Re: 37 T rear sprocket
Posted: Mon Feb 05, 2024 5:57 pm
by Triple Parts
Going off topic a bit, but did you know that a H2 produces more torque (if the manufactures figures are to be believed) than a Honda CBX 1000?
I thought it didn't sound right, so had to check...
1972 Kawasaki H2 750 Mach IV - Max Torque. 77.4 Nm @ 6500 rpm
1978 Honda CBX 1000 - Max Torque. 76.6 Nm @ 6500 rpm
Re: 37 T rear sprocket
Posted: Mon Feb 05, 2024 8:40 pm
by BIG H
Final drive gear ratio is a matter of personal choice.
I run my KH400 with 15-38 teeth sprockets.
It makes 1st gear a little tall but i find it great for 1 up riding or with a light weight passenger.
The 38T sprocket i made from a Blank sprocket which you can buy off Ebay or from engineering parts suppliers.
530 chain size is 5/8" x 3/8"
JT Sprockets do a selection of sprockets but not the 37T size you want.
https://www.jtsprockets.com/catalogue/model/s1298/