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Members: 639 | Total Threads: 50,828 | Total Posts: 518,559 Currently Active Users: 871 (0 active members) Please welcome our newest member, JodyG219 |
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08-08-2020, 01:55 PM | #1 |
Junior Member
Join Date: Sep 2019
Location: Thundersley
Bike: M1100evo
Posts: 21
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New discs for m1100 evo
Hi, I’ve had my evo1100 for about 11 months now and since buying I’ve had a pulsing in the front discs when slowly coming to a standstill, I’ve had the discs straightened as they were warped slightly but it’s only made a marginal difference. They seem to get worse when they get hotter as well. Was wondering if anyone can recommend replacements and a good place to buy them?
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08-08-2020, 04:03 PM | #2 |
Registered User
Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
Posts: 2,465
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I had "fluctuation of brake effort" as an MOT advisory for a number of years but couldn't feel anything myself. I wasn't convinced they were warped but replaced them with some Brembo Goldlines nonetheless and I've had no MOT comments since. They are better quality and lighter than the OE Brembos but £285 per pair against the £480 of the OE discs (2½ years ago).
Serie Oro, left - OE, right Try Simon at WSC Performance who gave me a really good deal. http://www.ukmonster.co.uk/monster/s...ad.php?t=56141 Before committing to replacements, I'd recommend you try Mr Gazza's "Italian Tune", which may improve things, if your discs aren't actually warped. http://www.ukmonster.co.uk/monster/s...35&postcount=3 |
08-08-2020, 04:08 PM | #3 |
Registered User
Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
Posts: 2,465
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PS if you do go for new discs, don't forget to match them to new pads, too.
http://www.ukmonster.co.uk/monster/s...ad.php?t=58084 |
08-08-2020, 04:58 PM | #4 | |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,855
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Quote:
By all means give the Italian tune up a try, but take care as it will most likely make them worse if they are warped. I think you will notice this at the end of the long hard brake as you let the pressure off the lever, in the form of the pulsing turning into shuddering. If that happens ride carefully home and order the new discs. If you get lucky send me a packet of chocolate Hobnobs..
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09-08-2020, 07:11 AM | #5 |
Member
Join Date: May 2019
Location: Bradford
Bike: M1100evo
Posts: 175
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My evo had a bit of a feeling like warped discs at slow speed so took the wheel off and spent a fair bit of time cleaning the bobbins and twisting them with a nut, bolt and some washers to get all the crud out. Put back and when tightening the callipers to the right torque apply pressure to the pads to centralise the callipers to the disc and since then no issues at all so might be worth a try for the sake of a couple of cans of the brake cleaner that screwfix sell at a decent price
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11-08-2020, 04:45 AM | #6 |
Junior Member
Join Date: Sep 2019
Location: Thundersley
Bike: M1100evo
Posts: 21
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Thanks for the advice so far, here’s the thing, I had the discs straightened at motoliner in Maidstone, I returned the wheel with the discs on to be checked, when tested with a dial gauge they proved to be true, the guy at motoliner noticed that the wheel had no weights on it and balanced the wheel for me, I’ve tried cleaning the buttons on the discs and replaced the pads but it’s just the same? After the first straightening there was an improvement, there’s no pulsing in the lever just (as described by someone else) a nodding dog syndrome. I’m convinced it’s the disc's as there’s nothing when braking with the rear brake only. Thanks again for the advice.
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11-08-2020, 05:42 PM | #7 |
rattles when he walks
Join Date: Aug 2002
Location: in the comfy chair,moved furniture around
Bike: M900
Posts: 1,065
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Have you checked the steering head bearings?
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11-08-2020, 06:15 PM | #8 |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,855
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If you've established that your discs are true, then that only really leaves the "surface conditioning". The amount of friction between pad and disc can be effected by contaminants, such as resins in the pad itself and invisible corrosion on the stainless steel discs. (which contain iron.)
Nature being what it is, these contaminants/corrosions don't distribute themselves evenly round the discs and so you often feel the different areas of friction quite vividly in the form of pulsing or nodding dog syndrome. Nice clean discs and pads, plus lots of heat and friction will often resolve this and condition the discs back to full smooth effect. Follow Luddite's link to my instructions as to how to do this. Note this is free! http://www.ukmonster.co.uk/monster/s...35&postcount=3
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12-08-2020, 11:13 AM | #9 |
More Tools!
Join Date: Jun 2004
Location: Forres
Bike: Multiple Monsters
Posts: 297
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Good info here too:
https://ebcbrakes.com/articles/motorcycle-bed-in/ https://www.ferodoracing.com/product...s/pad-bedding/
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Boris from Forres Last edited by boris; 12-08-2020 at 11:16 AM.. |
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