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Old Yesterday, 08:38 AM   #1
clapped_r6 OP
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Right sided shifting?

i have a friend who wants to convert an old honda xr500 to a right sided shifter.
he has a left leg amputation (and prosthetic) and really can't shift properly with his left foot.

anybody have any insight into setting something like this up?

tia,
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Old Yesterday, 08:40 AM   #2
leeinmemphis
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It would be easier to put the clutch on the right perch and put a suicide shifter on the left that would be hand operated. I've seen people do this on motorcycles several times over the years.


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Old Yesterday, 08:42 AM   #3
clapped_r6 OP
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i thought about that, but i think that with a dirt bike application it may not be the most ideal way to shift.

although, i'm guessing that any sort of crazy linkage would not work real well either.

ideas? post em up!
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Old Yesterday, 08:59 AM   #4
leeinmemphis
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Not to sound too harsh but an amputee riding a dirt bike is going to be difficult no matter how it's rigged. I imagine stopping and not having a solid feel on the left leg would make it tough. Another thought is to use a recluse clutch and put a suicide shifter on.


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Old Yesterday, 10:48 AM   #5
vfxdog
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It's not unusual in classic road racing to see r/h shift conversions. Usually fairly straightforward; often done running a shaft through the swingarm pivot which on many bikes is hollow.
There's some useful discussion, with sketches, in the forum below.

http://www.ducati.ms/forums/11-ducat...onversion.html
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Old Yesterday, 01:09 PM   #6
clapped_r6 OP
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Quote:
Originally Posted by leeinmemphis View Post
Not to sound too harsh but an amputee riding a dirt bike is going to be difficult no matter how it's rigged. I imagine stopping and not having a solid feel on the left leg would make it tough. Another thought is to use a recluse clutch and put a suicide shifter on.
Agreed, although I think this application is more toolin around on forest roads and ohv areas, not clearing doubles or anything. He's a strapping young man and I don't see that as the biggest problem. I don't think a rekluse is an option for the old iron he wants either, as the actual shifting is the problem.

Quote:
Originally Posted by vfxdog View Post
It's not unusual in classic road racing to see r/h shift conversions. Usually fairly straightforward; often done running a shaft through the swingarm pivot which on many bikes is hollow.
There's some useful discussion, with sketches, in the forum below.

http://www.ducati.ms/forums/11-ducat...onversion.html
Thanks for that link, I like the napkin drawing idea. That may be doable, depending on the bike.
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Old Yesterday, 02:36 PM   #7
ttpete
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I have a friend who lost most of his left foot in an accident, and he rigged up a heel-toe shift lever on the left side. He says it's fine because he pushes down on the front lever to shift down and down on the rear lever to shift up.

It would take some fabrication to do this, probably welding a rear lever to the existing one would be the way to go. It would have to go under the footpeg and curve up behind it.
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Old Yesterday, 03:01 PM   #8
Beezer
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there some shifter things out there that use electric solenoids too I think. up to about 1976, there was a lot of European bikes made with right side shift. some of those that stayed in business had conversions to make them left side shift. researching some of that may provide adaptable parts or at least some ideas. I know Bultaco made conversion kits. which brings up another possibility... it's not much farther back in technology to get a Husky 360 Enduro or a Bultaco Matador, Alpina, Frontera or such (if you don't mind a 2 stroke). they were bitchin bikes.... light & good power
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Old Yesterday, 03:22 PM   #9
clapped_r6 OP
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Quote:
Originally Posted by ttpete View Post
I have a friend who lost most of his left foot in an accident, and he rigged up a heel-toe shift lever on the left side. He says it's fine because he pushes down on the front lever to shift down and down on the rear lever to shift up.

It would take some fabrication to do this, probably welding a rear lever to the existing one would be the way to go. It would have to go under the footpeg and curve up behind it.
wow, hadn't thought of that. actually seems like the simplest solution. thanks!
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Old Yesterday, 03:49 PM   #10
gonerydin
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electric shifter is a good idea.

http://www.disabledmotorcyclerider.com/shifters.html

I've seen people ride with entire left leg gone.

And then there is David Barr http://en.wikipedia.org/wiki/Dave_Barr_(motorcyclist)
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Old Today, 05:16 AM   #11
emti
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Try posting a question on the vintage flattrack site. I think its vft.org, The xr500 motor is stiil used for racing. Maybe someone has already done the conversion. emti
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Old Today, 09:56 AM   #12
cedric
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Maybe some ideas from this:
http://advrider.com/forums/showthread.php?t=732416
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