Has anyone changed sprockets in the primary?
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Road Warrior
Joined: Mar 2007
Posts: 1,912
Likes: 2
From: Cave Creek, AZ
Has anyone changed sprockets in the primary?
Hi guys, has anyone changed there sprocket? say to a 22 tooth sprocket, I was told my throttle response would be greatly improved?
Thanks
Thanks
Road Warrior
Joined: Oct 2009
Posts: 1,251
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Hey, i havent changed a sprocket personally, But i have a screamin eagle primary chain drive for the touring bike i bought, but never used, it changes it to a 1.7 ratio primary, whatever that means??? Id sell it cheap if thats the route you decide to take. chad.
Seasoned HDF Member
Joined: Aug 2008
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From: Ohio
I changed to 3.37 by changing both sprockets, the 22 front should be close to the same gearing. Don,t have to ride the clutch taking off, 55 mph throttle roll on is alot sharper and cuts down on down shifting and no negatives, I did catch myself sometimes pulling up for another gear at the beginning when cruising but that feeling goes away.
I read there is a trick of turning the adjuster upside down to remove the chain slack from the 2 teeth change but maybe somebody can go into detail.
I read there is a trick of turning the adjuster upside down to remove the chain slack from the 2 teeth change but maybe somebody can go into detail.
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Road Warrior
Joined: Mar 2007
Posts: 1,912
Likes: 2
From: Cave Creek, AZ
97 bagger, my Indy said the same thing about the 22 tooth one, almost the same gearing,
(turns out it was the 23 tooth sprocket not the 22 has the same gearing, he said 3000 rpm on the 23 toother at 70 miles an hour is what I can expect. Stock is 25 teeth on the sprocket.)
DC as far as 4000rpm at 70 he said that happens on a 21 tooth sprocket.
gsxr thanks anyway but I'm going to go ahead and do the sproket tomorrow and I'll post the results next week.
Not an expensive modification and he said I could wait and he'd be done in an hour, that was a first.
(turns out it was the 23 tooth sprocket not the 22 has the same gearing, he said 3000 rpm on the 23 toother at 70 miles an hour is what I can expect. Stock is 25 teeth on the sprocket.)
DC as far as 4000rpm at 70 he said that happens on a 21 tooth sprocket.
gsxr thanks anyway but I'm going to go ahead and do the sproket tomorrow and I'll post the results next week.
Not an expensive modification and he said I could wait and he'd be done in an hour, that was a first.
Last edited by phat96; Feb 10, 2010 at 11:00 PM.
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