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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through August 22, 2009 » CR gearing on an R « Previous Next »

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Fresnobuell
Posted on Saturday, August 08, 2009 - 02:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Okay, so someone has to have done this by now.....if so, let us all know how the process went.
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Pizzaboy
Posted on Saturday, August 08, 2009 - 04:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

do a search!! i found the threads from under 9 months ago about it. its been done a couple times so far!!! (i forgot to save them)


,..... you just want to have some ammo when i argue against doing the swap on my bike in the next week or so, dontcha fresno!!!
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Ccryder
Posted on Saturday, August 08, 2009 - 11:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

A swingarm, front/ rear pulleys, I don't know about the belt. High $ item is the swingarm.
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Pizzaboy
Posted on Saturday, August 08, 2009 - 11:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What's involved to get your speedo correct? CR ECM flash or putting a CR cluster on the bike??
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Fresnobuell
Posted on Saturday, August 08, 2009 - 12:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Relax Pizza...i don't care what you do with your bike...I don't remember anyone actually doing the swap, that's why I posted this. Besides, it would be archived now anyway.

I know the parts involved, however I am wondering about the results and specifically if there is a way to have the speedo/GI read correctly without a speedo healer, etc.

(Message edited by fresnobuell on August 08, 2009)
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Georgehitch17
Posted on Saturday, August 08, 2009 - 12:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

wouldn't a chain conversion be cheaper and you have the choice of whatever gearing you want.
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Ridenusa4l
Posted on Saturday, August 08, 2009 - 02:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i think pizzaboy is referring to when a couple of badwebbers switched the fairings on a cr and an r, which in my opinion would be far easier and cheaper, compared to the swingarm bs lol...

Jake
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Fresnobuell
Posted on Saturday, August 08, 2009 - 02:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

wouldn't a chain conversion be cheaper and you have the choice of whatever gearing you want.

It's not cheaper and I love the belt. I don't race so having multiple gearing options is not crucial.

I've had the urge off and on to do the CR gearing swap and usually a thread here brings up the idea again. However the two things that have stopped me thusfar--the speedo issue and the fact that I would have to paint the swingarm. Neither is impossible to overcome, but it's held me back nonetheless.
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Xl1200r
Posted on Sunday, August 09, 2009 - 09:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Fres - you would need a minumum of the CR flash. The cluster does nothing but spit out the data the ECM is feeding it. However, if the speedo algorythms are hard coded in the ECM, you may need an ECM from a CR to do it.

No concrete answers, just food for thought...
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Buellsrule
Posted on Sunday, August 09, 2009 - 10:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Having owned both, unless you are going to use the bike on the track the R gearing is near perfect for the street. The CR is a little low for me. Would be awesome on a technical track.

Ride safe,

Frank
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R2s
Posted on Monday, August 10, 2009 - 12:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It seems to me If someone just made an adjustable mount for the tension pulley you could go down a size on the front or up a size on the rear pulley and just re-adjust the belt tensioner.

Or different sizes of tension pulleys could also work some.

There's a product for somebody to make? We could also use some different size counter shaft pulleys and rear pulleys then you could adjust all you want.

Screw the chain. this would be cool.

The speedo thing is a whole nother issue, but even changing gearing with a chain you would have that same problem.
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Ft_bstrd
Posted on Monday, August 10, 2009 - 01:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There's much more to it than that. The rear pulley is HUGE on the CR compared to the R. There isn't enough slack to accommodate just the pulley change.

They had to change the whole swing arm in order to keep the geometry (and belt length) the same. A longer belt would more than likely create other problems (slop, flex, heat, stretch, etc.).

It's not an easy fix, but it's not the most expensive. I think I remember the swing arm being $862.
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Fresnobuell
Posted on Monday, August 10, 2009 - 12:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If you know where to shop, the all the required parts can be had for $600-$700.
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Tpoppa
Posted on Monday, August 10, 2009 - 02:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It seems to me If someone just made an adjustable mount for the tension pulley you could go down a size on the front or up a size on the rear pulley and just re-adjust the belt tensioner.



I don't think an adjustable tensioner would work. The belt tension needs to be fairly precise. You would need a way to check the belt tension. Too
loose/tight would reduce belt life, shear teeth, etc.
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Froggy
Posted on Monday, August 10, 2009 - 02:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It makes me wonder, why didn't they do something similar to the XB9 and 12 with the primary chain/sprocket being different? Less costs involved, no worries about the speedo.

I know it uses gears instead of a chain, they couldn't change the gears?
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Chadhargis
Posted on Monday, August 10, 2009 - 02:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would do it the cheap way...buy the R and just use a lower gear. LOL! : )
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Ccryder
Posted on Monday, August 10, 2009 - 03:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Chad, Chad, Chad, that's just too easy and too cheap! It can't be any good if you can't throw $'s at it and make a change (for better or worse) LOL

We could get back to that spring loaded pulley that's offered over the pond. That will cure all, including a fat wallet!

I'd better shut up before someone takes me seriously.
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Fresnobuell
Posted on Monday, August 10, 2009 - 04:28 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would do it the cheap way...buy the R and just use a lower gear. LOL!

That's workable until you get down to first gear...
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Chadhargis
Posted on Tuesday, August 11, 2009 - 10:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yeah...but I seldom ride around in first gear, and the R I rode had more than enough grunt to pull the front wheel up in 1st. How much more do ya need? Shooting for that double back flip when the light turns green? LOL! : )
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Dirty_john
Posted on Tuesday, August 11, 2009 - 01:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Which is cheaper the chain conversion or getting hold of the CR parts I wonder, anyone able to cost it out and post the results please?
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Froggy
Posted on Tuesday, August 11, 2009 - 01:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

K0003.1ATYCX SWINGARM, PHANTOM METALLIC, W/LABEL Retail Price:$424.00

G0500.1ATA BELT, DRIVE Retail Price:$175.00

G0400.1ATB DRIVE SPROCKET Retail Price:$140.00

G0603.1ATZT BRACKET, IDLER PULLEY Retail Price:$39.50

I believe that is everything. $778.50, using a badweb discount from Liberty or Precision it would be $700.65 before shipping.

The chain conversion swingarm alone is more than that.
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Froggy
Posted on Tuesday, August 11, 2009 - 01:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Chain Drive Swingarm Kit (G0625.08AZ) $1779
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Fresnobuell
Posted on Tuesday, August 11, 2009 - 03:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yeah...but I seldom ride around in first gear, and the R I rode had more than enough grunt to pull the front wheel up in 1st. How much more do ya need?

True. I think the urge to convert is leaving once again.
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Chadhargis
Posted on Tuesday, August 11, 2009 - 04:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I actually liked the R gearing better. It is easier to modulate the throttle, but the CR gearing is more "peppy" feeling. Would be much better for second gear wheelies.
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Dirty_john
Posted on Wednesday, August 12, 2009 - 02:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanks for the costings, must say I am quite happy with the 1125R gear ratios, I can always change down a gear if actually needed.
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R2s
Posted on Friday, August 14, 2009 - 12:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I like the R's gearing. There is plenty of grunt to pull her.

Oh yeah, Belt tension is not all that hard to check.
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Ft_bstrd
Posted on Friday, August 14, 2009 - 08:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The problem isn't that the belt will be too loose.

The problem is that the belt will be too tight.

You can only "adjust" the belt tensioner so much.
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Xl1200r
Posted on Friday, August 14, 2009 - 10:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Belt tension is only part of the equation - belt geometry is just as imporant.

I put these together a while back - might enlighten some...







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Ccryder
Posted on Friday, August 14, 2009 - 11:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Great charts!
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Avc8130
Posted on Friday, August 14, 2009 - 11:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any chance you could put them on the same scale? With one going to 180 and the other going to 200 it looks like the CR has a higher top speed at first glance.

I like the charts though, shows the difference quite nicely.

It just looks way too expensive and involved to swap.
ac
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Nadz
Posted on Friday, August 14, 2009 - 03:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

haha- run first gear all the way up, then skip-shift to sixth and pour on more!
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