An international forum for people interested in modern high performance road going sidecars. Forum Index An international forum for people interested in modern high performance road going sidecars.

 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

For Rob G ~ Sarah's twist-shifter finished...

 
Post new topic   Reply to topic    An international forum for people interested in modern high performance road going sidecars. Forum Index -> General Discussion
View previous topic :: View next topic  
Author Message
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Sun May 21, 2006 9:07 pm    Post subject: For Rob G ~ Sarah's twist-shifter finished... Reply with quote

Here's the finished twistgrip shifter, waiting for the grip and
nylon end sleeve to be installed.

What you're looking at is a billet MSR throttle tube with the
end machined open so it slides up on the clip on. A Kawasaki
KX-250 dirtbike push-pull throttle cable housing and cables.
An MSR clutch perch that has had it's ID machined as to allow it
to mount on the throttle tube, and an MSR clutch lever.




_________________
The Bad Blog http://blog.badcatracing.com


Last edited by Moike the Squid on Sun May 21, 2006 9:33 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Sun May 21, 2006 9:10 pm    Post subject: Reply with quote

And the custom bracket and shift shaft cable bellcrank I
fabricated. After this photo I decided the bracket had a bit
too much flex and braised in an additional brace to box it up
a bit.

The bellcrank is nothing more than three large fender washers
braised together, (the one in the center about 1/16th of an inch
in diameter smaller) some 1.5 inch round bar stock, and the very
end of an MSR shift lever for a Honda XR-100, which just happens
to be toothed exactly the same as a GB500 motor shift shaft.

The bellcrank is then drilled and cut to accept the cable barrel
ends. The channel created by the smaller washer in the middle
of the washer sammich has been braised over, and then
filed/sanded smooth, to give the cables a soft channel to run in.




_________________
The Bad Blog http://blog.badcatracing.com


Last edited by Moike the Squid on Sun May 21, 2006 9:27 pm; edited 2 times in total
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Sun May 21, 2006 9:12 pm    Post subject: Reply with quote

Here's the cable bellcrank installed on the shift shaft...

The hole in the bellcrank is not threaded. It gets filled with
moly lube, and the threaded bolt on the bracket slides into the
hole and keeps the bracket and bellcrank pulley dead center.

It also helps keep the pulling force of the cables dead equal,
and keeps the cables from pulling 'up' on the shift shaft instead
of just rotating it.


_________________
The Bad Blog http://blog.badcatracing.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Sun May 21, 2006 9:15 pm    Post subject: Reply with quote

And, with the bracket and cables in place... I used a longer
allen bolt to replace the stock allen bolt in the countershaft
sprocket cover, and cut a spacer to go on the longer allen bolt
between the countershaft sprocket cover and the bracket.


_________________
The Bad Blog http://blog.badcatracing.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Sun May 21, 2006 9:36 pm    Post subject: Reply with quote

And finally, an overall shot of the installation...


_________________
The Bad Blog http://blog.badcatracing.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
SRADkneedragger



Joined: 09 Jan 2006
Posts: 15
Location: West Texas

PostPosted: Mon May 22, 2006 9:19 am    Post subject: Reply with quote

ok
1st why? Lost limb? Loss of range of motion?
2nd SHEER genius!
GREAT engineering!
_________________
If your not living on the edge your taking up too much space
Back to top
View user's profile Send private message
bmcsheehy



Joined: 22 Jan 2005
Posts: 972
Location: Massachusetts USA

PostPosted: Mon May 22, 2006 10:11 am    Post subject: Reply with quote

Very good,
How does it work?
_________________
Bill
High Performance Sidecaring... ...There is nothing "HACKED" about it.
2006 ZX-14 / HANNIGAN HP.
2011 Concourse / California Friendship III.
1936 Ford Fordoor Humpback
www.Yankee-Engineering.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Moike the Squid



Joined: 14 Jun 2005
Posts: 123
Location: Santa Cruz, CA

PostPosted: Mon May 22, 2006 3:35 pm    Post subject: Reply with quote

SRADkneedragger wrote:
ok
1st why? Lost limb? Loss of range of motion?
2nd SHEER genius!
GREAT engineering!


Thanks, and here's why...

http://cancer.iu.edu/osteosarcoma/patients/stories/sarah.php

'radical limb salvage' is doc-speak for full length artifical hip and femur,
with the last four inches or so of her actual femur to the top of the knee
belonging to someone else. For some reason sitting upright on a bike
and moving her foot forward and backwards on the footpeg to shift, and
lifting up on the shifter to shift gears, fatigues her really fast, within 10
minutes. Most of it has to do with the amount of muscle missing in the
outside of her left thigh.

Weird part is it's all body position. She can drive/shift the RGM in the
kneeler position all day with no problems at all.

-Mike-
_________________
The Bad Blog http://blog.badcatracing.com
Back to top
View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger
SRADkneedragger



Joined: 09 Jan 2006
Posts: 15
Location: West Texas

PostPosted: Tue May 23, 2006 10:23 am    Post subject: Reply with quote

Welcome to the wonderful world of Chemo and radiation! I too am a Cancer survivor. Hodgkins Mid 1960's. I was actually one the early field trials for Cytoxin and was one the earliest successful Hodgkins cases. Back then they were still trying to figure out the radiation dosing and as a result they burned me up pretty badly still a small price top pay! I've Been in remission since the 60's!

Oh and if your were my hero before now your really my hero! Thanks for making another Cancer survivors dreams come true!(Mine! Now I'm building MY sidehack!)
_________________
If your not living on the edge your taking up too much space
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    An international forum for people interested in modern high performance road going sidecars. Forum Index -> General Discussion All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group