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Old Dec 13, 2012 | 02:28 PM
  #1  
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Default Sprocket advice

I am thinking about changing from a 22/51 to a 26/51 final drive. Any advise? I have my trany apart right now and I want to change the main drive sprocket to get a little more top end speed. I want to keep the 51 rear spocket for now. I havent been able to find any write ups on a 26/51.

Thanks
John
 
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Old Dec 13, 2012 | 04:16 PM
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If you can find a 26, you may run into clearance issues with the inner primary. You can attain really good top end with a 23/46 combo. Really, how fast do you want to go? Is your bike mechanically capable for evading high speed pursuit?
 
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Old Dec 13, 2012 | 04:23 PM
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"AlCherry" is right on the clearance problems with the front sprocket ... anything over a 24 will definitely cause inner primary case conflicts. I've seen many chew a hole through the inner. Some have riveted a steel piece to act as a "wear buffer" where the chain will contact the inner, but that's really doing some backyard engineering ... I wouldn't go any bigger than a 23 on the front ... and going any bigger is going to make it real hard to ride when you're in town ... Good Luck Brother!
 
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Old Dec 13, 2012 | 05:15 PM
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stock 74 like a FX 22/48 -- 80" 22/47 or 23/48 a big *** bagger 22/49

i had a ole panhead with a 26 on it worse thing ever - it will NEVER get in the power band -- im doing a 74" right now with a S&S "E" and a sifton 414 cam -- custom tig welded exhaust system -- it will have a 22/48
 
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Old Dec 14, 2012 | 08:22 PM
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Since I'm not gonna type this out a third time in as many weeks check my posts in both these threads and as Al stated you ain't gonna find a 26 they don't make them that I know of and every 25 I've seen has ate the inner primary & starter housing to the point of the starters coming off .

Since you seem set on it the biggest you can go and not eat hard parts is gonna be a 24 and if you do that get a good highend ( $200 ) oring chain and keep it adjusted or you'll be dealing with a trashed and leaking inner primary and chewed off starter housing shortly . Oh yeah better have good shocks too the old ones will let the *** of the bike drop so far the chains gonna slap anyway .

https://www.hdforums.com/forum/shove...flh-trans.html

https://www.hdforums.com/forum/shove...our-speed.html
 

Last edited by TwiZted Biker; Dec 15, 2012 at 01:50 PM.
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