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Author Topic: X8 125 real calliper woes... How do you get it off?  (Read 11168 times)
« on: October 25, 2015, 19:04:20 »


The rear calliper on my 2007 125 x8 is sticking a bit.  Planned to take it off, give it a service and see how I got on.  Problem is it does not seem to come off.  Am I bieng stupid?

Silencer off.
Undo the 2 x 10mm bolts and calliper now floats but does not clear wheel rim.
Took off the big bracket that seems to hold most of the back end on. Don't know what it's called but it's the bit the rear wheel bolts through.
Still not able to get the caliper off.

Basically the inboard part of the calliper fouls the rim of the wheel before it comes clear of the disc.
It's almost like the disc is too big for the calliper/wheel combo.
Surely you don't have to take the disc off just to get the calliper off do you?
Maybe if I was able to take the pads out with teh calliper in situ I could get a slightly better angle on it but loathed to disturb it when I can't get it off.

What am I missing?
« Reply #1 on: November 09, 2015, 20:14:29 »

Nobody know?
Dave Milnes
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Fylde Coast

« Reply #2 on: November 10, 2015, 08:23:07 »

Sounds odd but if removing the pads will give the required clearance then do it. Problem solved.

The problem is if you bought the bike second hand, you have no idea if previous owners have changed the calliper or the wheel for an incorrect part. Unfortunately we don't have a manual for the X8 125 only the 400 which is totally different, although the X9 125 should be similar but the X8 uses Chinese callipers rather than Brembo ones.

2004 X9 500 Evo in YELLOW - 2016 Maxsym 600i Sport
Anderton 2004, Pen-y-cae 2005, Matlock 2006, Hay on Wye 2007, Minehead 2008, St Florence 2010, Newent 2011, North Kyme 2012, Betsw-y-coed 2013, Hardraw 2014, Parkend 2015, Whitby 2016, Mundesley 2017, Derby 2018, Telford 2019, Loch Doon 2020, Cumbria 2021.
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« Reply #3 on: November 10, 2015, 10:37:56 »

You do have to get the piston pushed back in to get some slack for it to twist a bit, they are a tight fit. Release the bleed screw may help.

Dave Weller, Chatham
NC750S 2016. FJS600. Silverwing 2010.
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« Reply #4 on: November 10, 2015, 13:22:46 »

We have a service manual in german language. Look here: www.piaggio-x8-forum.de/forum/showthread.php?tid=3376
If you want a link to the folder, send me an email.

Best wishes from Lake Constance


8/10 - 8/13 Hexagon 125 EX
8/13 - 4/15 X8 400
since 5/15 X10 350 and finally happy again!
German Workshopmanuals: https://619267.forumromanum.com/member/forum/entry_ubb.user_619267.1526838172.1136300091.1136300091.1.handbuechersammlung-x.html
« Reply #5 on: November 16, 2015, 19:55:25 »

Thanks for the resposes.

I'm a bit nervous about taking the pads out in situ as there is scope for getting in all sorts of bother if you can't really see what you are doing when you put them back.  Seems a really stupid design.  I'll wait until I need a new tyre or the brakes get really bad then I will be forced into getting it sorted.  For now I'll just use the back brake a bit less often.
Mike H
Rider for the Ride
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Ural cT sidecar outfit

« Reply #6 on: November 17, 2015, 00:49:24 »

Any chance of photos, can't get my head around this. 

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.
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