The New And Improved Unofficial R65 Forum V2

General Category => Chit-Chat => Topic started by: montmil on May 25, 2016, 08:01:42 AM

Title: Handlebar-mount MC for R100S
Post by: montmil on May 25, 2016, 08:01:42 AM
Really tired of futzing with the under-tank master cylinder and brake cable on my 1978 R100S. Would like to fit a bar-mounted unit. Doing so means new SS brake hoses, maybe new throttle cables (?) and other widget bits to do it right.

Anyone know about availability of a complete upgrade kit?
Title: Re: Handlebar-mount MC for R100S
Post by: thrang on May 25, 2016, 05:14:11 PM
Motorworks in the UK will make up a conversion kit, but you have to contact them for a price.
Title: Re: Handlebar-mount MC for R100S
Post by: montmil on May 25, 2016, 08:30:26 PM
Quote
Motorworks in the UK will make up a conversion kit, but you have to contact them for a price.

Noted two different offerings from Motobins. Both well over 330 quid! Present exchange rate pretty much puts it out of reason for me. A thread on ADV Rider was enlightening; describing only a possible 1-2% increase in braking performance. Snowbum's site listed all parts but some of his part numbers are no longer accurate. I'm now thinking my current lash up, which is working well with twin, braided SS hoses, may be just fine as is.
Title: Re: Handlebar-mount MC for R100S
Post by: Tony Smith on May 25, 2016, 09:29:28 PM
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 A thread on ADV Rider was enlightening; describing only a possible 1-2% increase in braking performance. Snowbum's site listed all parts but some of his part numbers are no longer accurate. I'm now thinking my current lash up, which is working well with twin, braided SS hoses, may be just fine as is.

Funnily enough that was what I came up with the last time the under tank M/C annoyed me - lots of cost and no advantage. I have the under tank M/C stainless steel sleeved and threw yet another seal kit at it - was working perfectly when I parked the R100.

I also agree that the biggest upgrade you can do with SS ATE calipers is fit better quality lines.

I was always "going to get around" to upgrading the brakes, the funny thing was that as the bike and I got older I went less hard  and didn't need upgraded brakes. Then originality was worth more than any braking gain....

But, I've since discovered that the 1980 on fork lowers will bolt straight on, which raises the possiblity of fittign Brembo F08s or ATE calipers. Given that the original SS ATEs are 40mm, I suspect that the smaller Brembo or ATE opposed piston calipers could be fitted without having to alter the M/C bore size. Not that I am going to do that now, I am locked into a "original" restoration for the old girl, the latest "big find" has been a brake place that has the right chemical wash/preservative to restore the pretty blue colour of the original ATEs.
Title: Re: Handlebar-mount MC for R100S
Post by: thrang on May 26, 2016, 04:26:56 AM
If you want anything ordering, I can get it and bringing over it in my bag when we fly out in July Monte.
Title: Re: Handlebar-mount MC for R100S
Post by: montmil on May 26, 2016, 06:48:16 AM
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If you want anything ordering, I can get it and bringing over it in my bag when we fly out in July Monte.

Thanks for the offer, Tony.