Faster acceleration

[akreider]

I want to increase the acceleration of my 81 gs1100 by putting on a larger rear or front sprocket, is there any other bikes that I could swap this off of? Also how many more teeth should I increase to? And what is the stock chain size?

I am not looking to change over to 530 chain, just want to swap the rear or front sprocket. I would prefer to go to a junk yard to get it and improve the take off without hurting the top end that much.

Thanks

 

[RacingJake]

Just go with a 14 tooth counter sprocket if your running a 15 tooth now.
With alittle luck you'll just need to adjust the rear wheel back alittle and be good to go. 20 bucks should do it for a 630 sprocket.

 

[scotty]

the countershaft sprockets are cheap new even. i also say one tooth less. it worked well for me even though i went to one tooth over after i did some mods.

 

[akreider]

So decreasing the front sprocket increases the take off power?

 

[KGB]

So decreasing the front sprocket increases the take off power?

yes.


if you do go the junkyard mode, make sure it's not already worn out.
that will destroy your chain quickly, like as fast as you can accelerate.
new sprockets are chaep, I'd go new, no worries that way

 

[RacingJake]

You could always install a 1395 kit, g4 cams, 1150 head, 40mm lectrons, 14 front 46 rear and some very good hand grips and hold on \\/

 

[Road_Clam]

So decreasing the front sprocket increases the take off power?

Keep in mind every cause has an effect. When you favor a lower gear ratio (such as a smaller tooth count countershaft sprocket) you raise your cruising rpm's for a given speed. So if you were turning 5000 rpm's @ 65 mph, now you will be raising the rpm's to around 5500 rpm's for the same 65 mph speed (strictly a guess).

I am going the opposite route, as I want to gear for more subtile 75 mph cruise rpm's. I chose to drop my rear sprocket from a 42T to a 40T.

 

[scotty]

You could always install a 1395 kit, g4 cams, 1150 head, 40mm lectrons, 14 front 46 rear and some very good hand grips and hold on \\/

You forgot the butt hook Jake:-D

 

[scotty]

Keep in mind every cause has an effect. When you favor a lower gear ratio (such as a smaller tooth count countershaft sprocket) you raise your cruising rpm's for a given speed. So if you were turning 5000 rpm's @ 65 mph, now you will be raising the rpm's to around 5500 rpm's for the same 65 mph speed (strictly a guess).

I am going the opposite route, as I want to gear for more subtile 75 mph cruise rpm's. I chose to drop my rear sprocket from a 42T to a 40T.

Now there is a case where raising the countershaft on toot((equal to almost three on the rear) would be very cost effective and also easy to undo if you did not like the results

 

[RacingJake]

You forgot the butt hook Jake:-D

Your right Scotty, doing the Superman thing can make it kinda of hard to slow down.

 

[scotty]

Your right Scotty, doing the Superman thing can make it kinda of hard to slow down.

I remembered why you had to remake your seat. Re tell that story Jake. its funny and educational too:-D

 

[crag antler]

And yes my children, because you can change your C/S sprocket, rear sprocket and even chain size and tensile strengths and even color, this once again proves that.....................................







Chains rules\\/ \\/ \\/