The rear brakes on my monster have always been rubbish, and from what i read 'they all do that sir.' What are the options for upgrade, either brembo aftermarket or from another Duc?
How rubbish is rubbish? Have you ever tried to brake on a loose road surface with just the rear brake (in a straight line)? Can you lock the wheel up in that situation? Im just asking these questions to get some context on the issue. I’m not suggesting this is you but some people believe the rear brake should be as efficient at stopping the bike as the front which it just can’t be due to the basic laws of physics.
Hi Paul. I have yes, and it doesn't lock. Engine braking from rolled off throttle is far in excess of the rear braking force. It's been bled correctly, but offers only a very weak braking force. I'm not expecting the earth, just something to know its there, correct a cornering line etc. I was about to order a service kit but then found an oem replacement from CarpiMoto for 35euros. Just ordered that, will report back.
I have seen many threads on poor rear brake performance but I have to say my rear brake on my 2018 M1200s is very good, never had any problems with it.
I just ask the questions as the rear brake on my 2009 1100S is fine, not earth shattering but enough to lock the rear wheel, and that’s a similar enough set up to yours. If it were mine, I’d remove the caliper, remove the pads and check the condition & surface of them. Pads glaze as they touch the disk, applying the brakes gets rid of the glaze. If the brake is not used the glaze builds up exacerbating the issue. Use something like 400grit paper to toughen the surface. Check the pistons move freely whilst the pads are out. Again, little or no use over an extended period of time may, due to the build up of dust and’s corrosion, cause them to stick. Flush and bleed the system with the caliper above the master cylinder. Reassemble everything, then with the bike on a paddock stand spin the rear wheel & apply the brake. Does it stop the wheel? Assuming yes, with the brake applied (get someone to help here by having them push down on the brake lever) can you move the rear wheel at all? You should not be able to. If that’s all as it should be the brake works.
I’ve owned a few M1100 Evo’s and bought another one last year. I have an invoice from 2014 replacing rear caliper, abs sensor, reservoir etc etc for the last owner to try and improve the rear brake. I also had it serviced last year with new fluids and pads, It’s still shite. As RickyX says, just don’t bother using..
tbh .... the front was lacking some bite so changed the front pads to race sintered ( 706 RS ) that helped enormously.
i refurbed the caliper, fitted new pads, bled it properly. the master cyl is the only item in the loop left unchecked. i'm away from home at the moment so can't check whether the current one locks the wheel with the rear on the stand, but for £30 for a new one i prefer to have it waiting for me when i get back. itching to ride it!
A euphemism Mark, to save me having to delve into, Weight transfer, Friction coefficients (of brake pads to discs and tyres to road), Disk surface area, Brake pad contact as a ratio of disc surface area, Master cylinder size and thus possible pressure which can be applied, Etc etc. ‘Basic laws’ seemed much easier to use
i don't use it unless heavy/emergency braking. however i don't ever want to be in the situation to need it and find its not there. a mate wrecked his buell in traffic that way
If one is doing an emergency/heavy brake manoeuvre, there will be little weight on the rear tyre so the rear brake will be mostly ineffective anyway.
