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Help to overdive the bike

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Old 12-17-2013, 03:23 AM
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Smile Help to overdive the bike

Hello bikers.
I want to overdrive my bike.
The bike is a Flht Electra Glide 2001 with stage 3 kit 116 hp on backwheel and a lot of rpm.
I'm thinking on changing my front pulley to a 34 tooth from standard. Is that a good way to lower the rpm? Do I have to change the belt to, or do the standard belt fit. Are there a cheaperway to do the overdrive?

Thanks and ride safe.
 
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Old 12-17-2013, 04:12 PM
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Hi Johnni from the UK and welcome to HDF. You have only a little more HP than I do and I am happy with stock US gearing for my 1990 bike. It whizzes down German autobahns a treat! It might seem a strange question, but do you routinely use earplugs?
 

Last edited by grbrown; 12-19-2013 at 10:47 AM.
  #3  
Old 12-19-2013, 09:44 AM
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Originally Posted by Johnni Sahlmann Pedersen
Hello bikers.
I want to overdrive my bike. The bike is a Flht Electra Glide 2001 with stage 3 kit 116 hp on backwheel and a lot of rpm. I'm thinking on changing my front pulley to a 34 tooth from standard. Is that a good way to lower the rpm? Do I have to change the belt to, or do the standard belt fit. Are there a cheaperway to do the overdrive? Thanks and ride safe.
Is the bike carbed or EFI? The reason I ask is because the 2001 touring bikes were available as one or the other. The carbed touring models came with 3.15 final drive ratio; 25/36 primary and 32/70 secondary. The EFI touring models came with 3.37 final drive ratio; 24/37 primary and 32/70 secondary. By 2002, all touring models came equipped with 3.25 final drive primary and seondary gearing. So, if your bike is EFI equipped, I would recommend changing the primary from 24/37 to 25/36. Maybe a little more expensive but a lot less work as, in most cases, increasing the trans pulley from 32T to 34T will require a longer belt. Additionally, the 24/37 x 34/70 will produce a final drive ratio of 3.17 where the 24/36 x 32/70 will produce a final drive ratio of 3.15. If lowering cruise rpms is the goal, 3.15 is a bit taller than 3.17 with a lot less work.

To make the conversion, you will need HD PN 40308-94, a 25T compensating sprocket and HD PN 37707-98A, a clutch basket with 36T ring gear; bearing and retaining ring is included. If you look around in Ebay, you might find both as a lot of riders looking for more acceleration have made the opposite swap and replaced the 24/37 setup with the 25/36. If you were real lucky, you might cruise the various HD forums and find somone that wants to swap.

I think if you are currenty running th 24/37 primary gearing and convert to the 25/36 primary gearing, you will find the 3.15 final drive to your liking. JMHO.
 

Last edited by djl; 12-19-2013 at 09:48 AM.
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Old 12-19-2013, 09:45 AM
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My bad, duplicate post.
 
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Old 12-23-2013, 04:12 PM
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Hi
I don't use earplugs, I nearly always have music in my helmet.
 
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Old 12-23-2013, 04:20 PM
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My bike is a carbed one. Do you have any idea as to what I can do to overdrive my bike.

and thank you so much for the inputs.
 
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Old 12-23-2013, 11:08 PM
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Originally Posted by Johnni Sahlmann Pedersen
My bike is a carbed one. Do you have any idea as to what I can do to overdrive my bike, and thank you so much for the inputs.
You can install a 34T trans pulley and change the final drive ratio to 2.96 but that over drives in every gear. You might be happy cruising in 5th but not so happy trying to pull in the lower 4 gears. Consider a six speed, or the Twist Gear setup with a 34T trans pulley. Be advised that a 34T trans pulley may require a new and longer belt.

http://twistgear.net/
 
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Old 12-24-2013, 05:16 AM
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Originally Posted by Johnni Sahlmann Pedersen
Hi
I don't use earplugs, I nearly always have music in my helmet.
I've actually reduced the gearing on my 1990 Glide, which I have owned from new. International models used to come with a 61T rear pulley, while US spec was 70T (which I now have). That is a 15% improvement in torque in all gears, with improved performance across the board.

By contrast any increase in gearing will reduce torque in all gears and negate the expense of tuning your engine, so while reduced engine speed while in top gear might seem attractive, as djl points out, performance in all gears is reduced. Both Harley and Baker make 6-speeds that fit your bike, which will keep stock lower ratios and provide a higher 6th gear.

Even if you listen to music, you really should be using ear plugs, on all but the shortest trips! I use them routinely and while you will have to turn up the volume, you will hear your music better. Your engine will be fine cruising at speed, all you need are earplugs, to reduce discomfort.

I despair that the danger to our hearing was made known in the 70s and that the message is not getting through. They are the cheapest tuning aid known to mankind - try them!
 
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