Raising the top end speed via gear ratios - Honda Rebel Forum
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post #1 of 17 Old 03-22-2018, 05:15 PM Thread Starter
 
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Question Raising the top end speed via gear ratios

A man doesn't need cheap materials in some things. Like in the chains and sprockets going on his bike. I've been appalled at some of the problems that a man can get into when he made the mistake of ordering cheap there! Never again. So with a good amount of research since I was wanting to raise the top end speed via gear ratio plus I wanted to meet or exceed original OEM product longevity. I just did the proverbial exhale and squeezed of the shot...

I do hope I am happy with the quality of this purchase.




https://goo.gl/gQ2ZPz

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post #2 of 17 Old 03-22-2018, 06:08 PM
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14/33 is the OEM sprocket design - you will see better top end performance from the OEM ratio if you are changing from a non OEM set
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post #3 of 17 Old 03-22-2018, 11:45 PM
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I didn't know JT Sprockets made chain too, but I'm sure it's good quality, as are their sprockets. DID and RK chains are also top quality. As posted elsewhere, I've found great bargains on chain with more than 108 links (go figure). I just use my $5 heavy duty Harbor Freight chain tool to customize the chain. They've gone up on the price, https://www.harborfreight.com/heavy-...ker-66488.html but mine has paid for itself many times over. Much stronger than the $25 chain tool I initially bought.

Keepin' all the left over parts. Gonna use 'em to build another bike!

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post #4 of 17 Old 03-23-2018, 12:30 AM
 
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If you really want to raise your top end swap in some longer forks & rear shocks:



See? That top end is at least three inches higher.

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"Ride Safe, Chop Safer" Motorcycles are not unsafe. However; they are extremely unforgiving of inattention, incompetence, ignorance, and stupidity.
Dismantling, sawzalling, and rattle canning does not make a bobber.
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post #5 of 17 Old 03-23-2018, 11:00 AM
 
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how about this:
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post #6 of 17 Old 03-23-2018, 01:38 PM
 
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Well, that works too...costs a lot more but, yeah. Although once that beast starts tipping over, by the time it reaches a point where you can stop it with a foot down you're better off bailing than breaking a leg.



P.S. cute little disc brakes on those big wheels, next thing you know spools will become fashionable again.
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"Ride Safe, Chop Safer" Motorcycles are not unsafe. However; they are extremely unforgiving of inattention, incompetence, ignorance, and stupidity.
Dismantling, sawzalling, and rattle canning does not make a bobber.
Those are STEPS toward customizing, not customizing unto itself.
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post #7 of 17 Old 03-25-2018, 10:26 AM Thread Starter
 
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That's right but...

Quote:
Originally Posted by 01-7700 View Post
14/33 is the OEM sprocket design - you will see better top end performance from the OEM ratio if you are changing from a non OEM set
You are right on the ratio being original in the ad as it appears default. If you get into it further though he offers a faster take-off sprocket set and a raise highway speed set all for the same price.
You just tell them what you want in the notes section as you order. I ordered the up high speed set which has a 30 tooth rear and a 14 tooth front. It just came in yesterday evening. So I plan on having it on the bike by this evening assuming something doesn't jump in to claim my time. Lord knows that happens quite frequently. LOL

I'm just knockin' around on me 1986 CMX250C Honda Rebel
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post #8 of 17 Old 03-25-2018, 10:44 AM
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Quote:
Originally Posted by StarBaseONE2 View Post
You are right on the ratio being original in the ad as it appears default. If you get into it further though he offers a faster take-off sprocket set and a raise highway speed set all for the same price.
You just tell them what you want in the notes section as you order. I ordered the up high speed set which has a 30 tooth rear and a 14 tooth front. It just came in yesterday evening. So I plan on having it on the bike by this evening assuming something doesn't jump in to claim my time. Lord knows that happens quite frequently. LOL
you can also reverse that logic - by altering the OEM sprocket set you will lose top end speed - many have tried, all have discovered this truth - theoretically, it seems like a sound plan but the motor doesn't have the oomph to push a higher speed set at the theoretical higher speed, except for downhill - then you can go faster at lower rpm

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post #9 of 17 Old 03-25-2018, 11:05 AM
 
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What he said. Let's face it if the Rebel had more speed in it, it would have been geared higher from the factory. The fact is that the Rebel is geared correctly for most people right out of the box. If you use taller gearing, you reduce the RPM at cruise speed, but lose rear wheel torque as needed for headwinds and top speed. If you use shorter gearing you will be a little quicker through the gears but will limit your usable top speed.

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post #10 of 17 Old 03-25-2018, 04:23 PM
 
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Sprocket modification is not a set in stone affair. What might work (emphasis on "might") for one person in their particular environment probably won't work for you in yours.

In other words, if person A modifies their final ratio at sea level in flat-as-a-pancake Florida, that ratio is NOT going to work for someone who lives in the Rocky Mountain region that is constantly changing elevation from city block to city block...and vice versa.

That said, I have experimented in both directions --- ease in acceleration and dropping RPMs at higher speeds --- and found the best ratio with the least compromise for my environment is what the bike came with from the factory.

"Ride Safe, Chop Safer" Motorcycles are not unsafe. However; they are extremely unforgiving of inattention, incompetence, ignorance, and stupidity.
Dismantling, sawzalling, and rattle canning does not make a bobber.
Those are STEPS toward customizing, not customizing unto itself.
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