Thumb Brake - SV650.org

11-12-09, 01:48 AM

Hi all,

I'm looking at modding my K6 SV by switching the rear brake to thumb operated brake as I've been told I can't ride my bike due to ongoing medical issue with right knee, but the sv is my only transport.

Does anyone have any experience using thumb brakes?

Does it effect the braking power at all? Does the orignal lever have to come off, or does stay on and is still usable along with the thumb brake?

Any and all info much appreciated.

11-12-09, 02:33 AM

hmm no idea about thumb brakes but hears another idea that comes from my quad, use the front brake lever to operate front and back so just link the back up to the front master cylinder with a double banjo , not sure about this in the wet though :S

Richie · 11-12-09, 05:35 AM

borrowed from this web page
All Thumbs
GP Tech Cast Master thumb brake

Despite what some riders think, a motorcycle's rear brake does have a legitimate function beyond being something they brag about not using. To make it easier to employ, borrow a page from world champ Mick Doohan and try out GP Tech's Cast Master thumb brake. The least expensive ($285) of GP Tech's three thumb-brake systems, the Cast Master mounts to your bike's left clip-on, has a billet aluminum lever and comes with a Goodridge stainless steel hydraulic line plus a junction valve. (269) 671-4915, www.gptechllc.com

hth's
Richie

punyXpress · 11-12-09, 09:36 AM

Don't try to join it to existing system - fluid will just go into the old master cylinder, being the line of least resistance.

ophic · 11-12-09, 09:51 AM

Quote:

Originally Posted by barwel1992

hmm no idea about thumb brakes but hears another idea that comes from my quad, use the front brake lever to operate front and back so just link the back up to the front master cylinder with a double banjo , not sure about this in the wet though :S

Quads have the advantage of 4 wheels, hence you're less likely to fall off. I shudder at the thought of both my brakes being applied with no control over the distribution, and no Honda engineer having thoroughly tested it first.

Dave20046 · 11-12-09, 09:51 AM

I wouldn't want the rear joined with the front. Richie's post looks interesting.

11-12-09, 09:53 AM

The other problem is presumably you would have to inform DVLA/insurance etc?

BoltonSte · 11-12-09, 10:17 AM

There's a company/website out there that modifies bikes for folk who can no longer ride a standard bike, it was in Ride a while back I will try and have a look.

Here you go http://www.nabd.org.uk/whoare.htm

Richie · 11-12-09, 10:41 AM

the Honda VFR800 has a sliding front left caliper that is connected to it own small master cylinder which applies the rear brake...
So give the front brake a big hand full then the rear also applies too....

Richie · 11-12-09, 10:45 AM

also...

clicky link. that one sold but there are others...

also found a forum for Riders with disabilities, with a few topic on the subject

11-12-09, 01:48 AM	#1
SAMMY650 Guest Posts: n/a	Thumb Brake Hi all, I'm looking at modding my K6 SV by switching the rear brake to thumb operated brake as I've been told I can't ride my bike due to ongoing medical issue with right knee, but the sv is my only transport. Does anyone have any experience using thumb brakes? Does it effect the braking power at all? Does the orignal lever have to come off, or does stay on and is still usable along with the thumb brake? Any and all info much appreciated.

11-12-09, 02:33 AM	#2
barwel1992 Guest Posts: n/a	Re: Thumb Brake hmm no idea about thumb brakes but hears another idea that comes from my quad, use the front brake lever to operate front and back so just link the back up to the front master cylinder with a double banjo , not sure about this in the wet though :S

11-12-09, 05:35 AM	#3
Richie fantabulas Mega Poster Join Date: Apr 2004 Location: Nr Durham Posts: 4,940	Re: Thumb Brake borrowed from this web page All Thumbs GP Tech Cast Master thumb brake Despite what some riders think, a motorcycle's rear brake does have a legitimate function beyond being something they brag about not using. To make it easier to employ, borrow a page from world champ Mick Doohan and try out GP Tech's Cast Master thumb brake. The least expensive ($285) of GP Tech's three thumb-brake systems, the Cast Master mounts to your bike's left clip-on, has a billet aluminum lever and comes with a Goodridge stainless steel hydraulic line plus a junction valve. (269) 671-4915, www.gptechllc.com hth's Richie __________________ My Flickr photos Last edited by Richie; 11-12-09 at 05:37 AM.

11-12-09, 09:36 AM	#4
punyXpress Member Mega Poster Join Date: Feb 2008 Location: Riding, North Posts: 2,664	Re: Thumb Brake Don't try to join it to existing system - fluid will just go into the old master cylinder, being the line of least resistance. __________________ Was: K2 naked in rapid yellow - gone to a better? place Now: Street Triple R

11-12-09, 09:51 AM	#6
Dave20046 Member Mega Poster Join Date: Jul 2008 Location: Sheffield Posts: 10,274	Re: Thumb Brake I wouldn't want the rear joined with the front. Richie's post looks interesting. __________________

11-12-09, 09:53 AM	#7
ArtyLady Guest Posts: n/a	Re: Thumb Brake The other problem is presumably you would have to inform DVLA/insurance etc?

11-12-09, 10:17 AM	#8
BoltonSte Member Mega Poster Join Date: Aug 2003 Location: Back in Bolton Posts: 1,010	Re: Thumb Brake There's a company/website out there that modifies bikes for folk who can no longer ride a standard bike, it was in Ride a while back I will try and have a look. Here you go http://www.nabd.org.uk/whoare.htm __________________ Had an SV or three. Street triple R - gone but not forgotten. Now trying the lunacy that is KTM with a Superduke GT. for the pillion capability of course. Last edited by BoltonSte; 11-12-09 at 10:18 AM.

11-12-09, 10:41 AM	#9
Richie fantabulas Mega Poster Join Date: Apr 2004 Location: Nr Durham Posts: 4,940	Re: Thumb Brake the Honda VFR800 has a sliding front left caliper that is connected to it own small master cylinder which applies the rear brake... So give the front brake a big hand full then the rear also applies too.... __________________ My Flickr photos

11-12-09, 10:45 AM	#10
Richie fantabulas Mega Poster Join Date: Apr 2004 Location: Nr Durham Posts: 4,940	Re: Thumb Brake also... clicky link. that one sold but there are others... also found a forum for Riders with disabilities, with a few topic on the subject __________________ My Flickr photos Last edited by Richie; 11-12-09 at 10:56 AM.

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