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1974 FLH questions

Started by Wildman510, January 16, 2019, 06:39:22 PM

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david lee

March 17, 2019, 02:41:59 PM #25
Quote from: JW113 on January 16, 2019, 07:12:16 PM
I think you're on the right path. Assuming your primary is 24/37, with 24/49 on the final drive, the overall is 3.15:1. Although that is not horribly tall, I think you'll find it will pull speed better by dropping the rear drive ratio. Maybe try a 51T rear sprocket and see if that helps a little?

-JW
what would change going from 24-49 to 23-49 on a stock bore 80 inch with s&s b carb. eg city-highway riding and rpm. thanks

76shuvlinoff

March 18, 2019, 05:56:18 PM #26
Plug in your sprocket numbers here and hit calculate.   My 24/37 23/48 comes out 3.217 

http://nightrider.com/biketech/calc_gearratios.htm
Critics are men who watch a battle from a high place, then come down and shoot the survivors.
 - Ernest Hemingway
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