¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Locked R90S Brake Lever Pull Improvement


 

I have been considering swapping my front brake 16mm master cylinder for a 14mm from an R90/6 single disk system to increase the brake feel.

I saw this device to change a cable clutch lever mechanical ratio and was thinking that this might produce the same results at a much lowered cost and effort (converting the single master cylinder to twin disks). The one pictured is from Moose Racing and is about $35. It looks like it might be fairly easy to adapt to the under tank master cylinder.

Has anyone tried anything like this or have any thoughts on it?


 

A few years ago, I converted my master cylinder to the 14mm /6 diameter.? I bought a /6 master cylinder rebuilding kit, then I sent the cylinder out and had a 14mm stainless steel sleeve installed in my original master cylinder.?? I was very happy with the increased braking power that that provided.??

?

Bill Ballon

74 R90s

-----Original Message-----
From: <[email protected]>
Sent: Mar 21, 2022 10:27 PM
To: <[email protected]>
Subject: [R90SWORLDNET] R90S Brake Lever Pull Improvement

?

I have been considering swapping my front brake 16mm master cylinder for a 14mm from an R90/6 single disk system to increase the brake feel.

I saw this device to change a cable clutch lever mechanical ratio and was thinking that this might produce the same results at a much lowered cost and effort (converting the single master cylinder to twin disks). The one pictured is from Moose Racing and is about $35. It looks like it might be fairly easy to adapt to the under tank master cylinder.

Has anyone tried anything like this or have any thoughts on it?

?


 

Some time ago I had my brake m/c re-sleeved with stainless? or brass?, I forget, but non ferrous so no rusting, to 14mm with great results. Then I swapped out the 38mm calipers to 40mm for greater leverage and added stainless lines.?

Very nice now!

Mac Kirkpatrick?

On Mon, Mar 21, 2022 at 19:27 Jerry Hale <halejl@...> wrote:
I have been considering swapping my front brake 16mm master cylinder for a 14mm from an R90/6 single disk system to increase the brake feel.

I saw this device to change a cable clutch lever mechanical ratio and was thinking that this might produce the same results at a much lowered cost and effort (converting the single master cylinder to twin disks). The one pictured is from Moose Racing and is about $35. It looks like it might be fairly easy to adapt to the under tank master cylinder.

Has anyone tried anything like this or have any thoughts on it?

--


Mac Kirkpatrick
Glenmoore, PA

"After all, what is adventure, but inconvenience, properly regarded?"
C. Donahue


 

eBay has something that looks close for much cheaper.?

What my arthritic hand would like more is a modified lever (clutch and brake) which reduced the resting distance from the grip to the lever.? I wonder if anybody makes such for the /6 series.