Many thanks John. This is great info for those looking to do the M4 caliper upgrade. The missing tricky link, so to speak. I note Venhill have just opened shop here in Australia too! I'm sure Mr Williams will post this info/specs up on his MTS site.
Yep, Andy is in the loop, and has access to my pics. I will take more when the bike goes back together to show the routing along the frame. Those M50 calipers look interesting. I might have to order a set and give them a go :smile: [Edit: just done a bit of reading about the M50s. Seems the advice is to replace the master cylinder too, to maintain the correct ratio in order to avoid losing brake feel. M4 has 4x34mm pistons and used with 19mm master cylinder. M50 has 4x30mm and used with 16mm master cylinder.]
Ah JW, you took the words right out of my mind... I was about to post to you, EXACTLY, the same thing. The Yanks (and I mean that in the nicest way), have a thread on this subject where you may have discovered. It explains in detail about "swept area" of the rotor/pad/caliper combination if I recall correctly, in relation to feel. There was even a 'table' outlining the differences of feel V hardness of caliper combinations and indeed the M50 required the MC setup, of which you speak. I must find that thread again, was very informative. I do recall that the M4's were pretty much in the 'sweet spot', for feel X power, so without embarking on another $1500AUD M50 upgrade project, I left it at that. For now ;-))) Whilst we speak of brake upgrades and madness, are you aware of the rare rear Brembo Racing 13mm Rear Brake Master Cylinder? I found it once, surfing the Interweb, well pissed. I vaguely recall the price, then promptly passed out.
"...I must find that thread again, was very informative." Sounds interesting.....post the linky here when you do Marty ;-)
Just back. From a long weekend away, so apologies for delay in responding. Yes quite possibly the same thread, over on ducati.ms I think. Andy just search for something like M50 calliper upgrade. Nope, not looked at bigger rear master cylinders. For me the feel is ok, it's just it loses the pedal. I Went out on my bike today for the first time after removing the callipers. Had an 'oh shit' moment the first time i needed a decent amount of brakes, when I found out how different the standard ones are to what I had gotten used to Can't wait to get them fitted on the new bike again.
Doodle, well done mate just provided details to Dave at Snells. You might need to point him at this thread for hose details incase he can't find it. he now has my number should he need it.
A set of M4s (there's a new set on ebay for £450 currently) £30-£40 to modify the brake line and make a new crossover. Fitting costs (depending on who's doing the work) and a splash of brake fluid. Lol...I did mine nearly 2 years ago. He phoned me up to talk about it and seek some guidance as they've got someone booked in for it.
Personally I wouldn't bother to modify the existing line. If you do, you will still need to replace it when / if you swap back to standard anyway. The parts from Venhill came in at ~£73 (hoses ~43, fittings ~30). This makes it a really easy procedure. Infact the hardest bit is feeding the existing steel line out through the head stock (I didn't remove the line from the calipers, if I did then the flexi end would come out through the headstock easily). Will be good to hear your impressions once done. Which pads are you fitting ?
Sorry John, I misunderstood your original post - hence my correction above. The modification I did means that you won't have to remove it completely for any further changes, just unscrew the union by the headstock and swap the last bit of the line. No idea on the pads - they came with a set pre-installed, they're the standard compound I believe.
Thanks, they sound the business..... Ferodo CP1 Ferodo's racing materials have had more wins over the past 50 years than any manufacturer in the world. From the demands of the Isle of Man TT to the circuits of the World Superbike, our organic racing range has provided the performance and modulation required by the world's best riders. Developed from Ferodo's extensive racing history and unrivalled by any of our competitors.Features of CP1 are Highest friction level available for motorcycle racing Replaces previously available CP211 material - same performance as CP211, but with superior life Excellent modulation Very kind to discs Applications to fit all major racing calipers Suitable for stainless steel and cast iron discs Ferodo pad 'grades' available for the MTS1200: Front: Ferodo Racing Rear: Ferodo Racing Any disadvantages to 'race' pads? I was going to go for the EBC HH's which I guess would be similar to Ferodo's ST's?
Depends on their specifics, but worst case scenario is usually dull performance until you get heat in them, squealing like a stuck pig and sometimes voracious disk wear.
I use HH pads. They create a bit more dust, and they can squeal a little at times (especially if wet), but haven't been too harsh on the disks.
Squealing Ferodo CP1's? Ah, no. Had mine on since early November (M4's & Braktech Iron rotors) and they have been given a right hiding and not a hint of squealing wet or dry. The OEM pads moaned like an old slapper in the wet but not these. Yes, they do feel 'dull' from the off and cold but with a few applications to bring them up to temp (likewise for the rotors) you are in business in a major way. The rear Ferodo ST on the Iron BT rotor now DOES squeal however but Jesus, sublime performance. The squeal reminds me of the squeal of the hot brakes of a Porsche 997 GT Cup car I had the privilege of riding shotgun in one track day. Performance brakes. Pukka.
I likened the stock pads in the original calipers to a pissed off goose honking at you. Not so good for commuting in an urban environment then - you'll end up parked in the back of a car. I expect the CP1s work better on those iron discs than stainless. I've got their Platinum pads on iron discs for my old BMW, they perform very well indeed.
