RS Throttle change?
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From: Hog on 5 Jan 2010 05:56 SpamTrapSeeSig <no-one(a)nospam.demon.co.uk> wrote: > In article <1jbt64k.jh48va5xbtt4N%totallydeadmailbox(a)yahoo.co.uk>, The > Older Gentleman <totallydeadmailbox(a)yahoo.co.uk> writes >> Pete Fisher <Peter(a)ps-fisher.demon.co.uk> wrote: >> >>> I suspect Venhill could advise. Might have to be DIY, but >>> they may do bespoke to your measurements. >> >> They do. > > This'll do it for a Boxer, but you'd need to compare the pulley > diameters to see if there's any mechanical advantage over the standard > kit: > > <http://www.venhill.co.uk/Controls/MOTORCYCLE_CONTROLS/TWISTGRIPS/125400_ > TWISTGRIP_TWIN_PULL__305_1_PI-SZ_.html> > > Obviously you'd need to make up new cables too... > > HTH, Looks like the same diameter as standard but Venhill seem to have a wide range of possible solutions. I'll start with watchiong ebay et all for a Brembo master cylinder and lever. I see a lot of different cylinder diameters/ratios quoted, can anyone explain the subject? I can guess the effects in terms of lever travel and effective pressure at the pads but HTF do you work out what you might need. The RS has twin old style 2 piston Brembo callipers as fitted to many BMW's, Guzzles etc. If Ducati John manages to mate my Showa race fork radial brake front end to the ST4S I'm going to have a bash at fitting the OE gold Showa front end to the RS for a giggle. The bikes are a similar sort of weight. They both have large diameter axles and mating the front wheel/discs will be the biggest challenge. My dream conversion for an RS is having a slightly longer banana swinging arm with external shaft to squeeze in a K1100RS rear wheel running a decent size radial tyre. -- Hog
From: Richard Smith on 5 Jan 2010 06:10 "'Hog" <sm911SPAM(a)CHIPShotmail.co.uk> wrote in message news:4b41d423$0$2525$da0feed9(a)news.zen.co.uk... > I would like to change the integrated throttle/brake setup on the 100RS > for two separate units. A quick action throttle and brembo master > cylinder. The brake side is easy enough and I'm comfortable relocating the > switch functions to a panel in the fairing. The throttle bit has had me > wondering for a long time though. Where would one get a suitable quick > action throttle and assuming the original cables wouldn't then fit how > does one go about sorting that out. > > The original throttle uses two cables but I suppose a 1:2 setup would be > possible. IIRC many of the Bing-carbed airheads used a 1:2 setup as standard. Looking on the Motorworks site, there are indeed the various components available. I suppose yours has Dellortos, though.
From: Hog on 5 Jan 2010 17:25
Richard Smith <monotreme(a)blueyonder.co.uk> wrote: > "'Hog" <sm911SPAM(a)CHIPShotmail.co.uk> wrote in message > news:4b41d423$0$2525$da0feed9(a)news.zen.co.uk... >> I would like to change the integrated throttle/brake setup on the >> 100RS for two separate units. A quick action throttle and brembo >> master cylinder. The brake side is easy enough and I'm comfortable >> relocating the switch functions to a panel in the fairing. The >> throttle bit has had me wondering for a long time though. Where >> would one get a suitable quick action throttle and assuming the >> original cables wouldn't then fit how does one go about sorting that >> out. The original throttle uses two cables but I suppose a 1:2 setup >> would be possible. > > IIRC many of the Bing-carbed airheads used a 1:2 setup as standard. > Looking on the Motorworks site, there are indeed the various > components available. I suppose yours has Dellortos, though. Nope 32 and 40mm Bings. They are generally preferred. The ultimate was a Kehin flat slide conversion but that was from Ultimate Source, long since defunct. -- Hog |