Dragging back brake after fitting hugger?

[Gog yn y De]

Something that hasn't been mentioned here is the tyre coming into contact with the hugger...

A few days before I headed to the Spanish Alps for a 9 day spin, I fitted my new hugger. After a day or two of some spirited riding I noticed what I thought was a lot of brake dust on the rear rim - something that had not been apparent before. A few days later I noticed that what had been happening was that the off-side shoulder of the tyre was rubbing against the inside of the hugger. It was also happening to some extent on the near-side but nowhere near as bad.

In my case, the rim was covered in rubber, not brake dust.

It materialised that the hugger in question was part of a bad batch using an incorrect mould that has been subsequently destroyed. The hugger has been replaced and all is now well.

During fitment, I too thought the pads were touching when I rotated the wheel while on the centre stand - could it be that you're suffering from the same problem?

 

[Big Lee]

I`ve been out & had a quick poke about & found that if I moved the brake hose & twisted the caliper slightly the brakes didn`t rub it looks like the hose twists the caliper slightly & causes the rub. I pushed the hose back as far as I could & it`s a lot better now

Lee

 

[JayGee]

Gentle rubbing of the rear pads against the disc when spinning the wheel by hand is IMHO quite normal with or without the hugger. When fitting my hugger I also noticed I had to really push the caliper forward against the hose in order to line up the bolts. There is a bit less room for the hose to flex so I would agree it looks like the routing of the hose could stop the caliper floating free completely. I just fiddles about untill it seemed to flex OK, mind you my pads are nearly worn out, it will probably be slightly less play in the hose with new pads.

 

[Colin O]

I still get a noise from the back wheel... but can't see the cause.

I noticed increased noise (like wheel bearing droning) from the back wheel after fitting the MC hugger, especially at about 50 mph.

Spinning the back wheel on the centrestand with the engine didn't reproduce the noise but the clunking from the final drive (I understand this is normal) sounded dreadful!

I'm thinking maybe the hugger amplifies existing noises (like the clunking), or maybe the droning noise is the hugger 'resonating'?

Colin

 

[David T]

hugger noise

Hi
I reckon the MC hugger does amplify either tyre/road/or transmission noise.
Either that or the final drive is on the way out! As the prophets of doom diagnose.
Either way it would be nice to know for sure, I can live with the first but might not with the second!

 

[Big Lee]

Gentle rubbing of the rear pads against the disc when spinning the wheel by hand is IMHO quite normal with or without the hugger.

I agree but this was much more!

It`s much better now so at least people are aware of the potential rubbing & the cause & remedy

something less to worry about

 

[Mike_swe]

I noticed that the cutout in the mounting arm wasn´t aligned with the brake hose. I removed some material on the arm just to have some more clearance.

The edge of the tire (Anakee) touches the inside of the hugger on the right side in two places. But when I rotate the wheel on the centerstand it doesn't touch the hugger.

 

[Emoto]

I noticed that the cutout in the mounting arm wasn´t aligned with the brake hose. I removed some material on the arm just to have some more clearance.

The edge of the tire (Anakee) touches the inside of the hugger on the right side in two places. But when I rotate the wheel on the centerstand it doesn't touch the hugger.

Are you saying your tire is out of round?

 

[Mike_swe]

Are you saying your tire is out of round?

No, I'm saying that the tire touches the HUGGER in two places. I had it removed yesterday and there where two marks where the tire had made contact.

 

[Deleted account 211025001]

Thanks Big Lee for raising this

I've had a really good look at mine today and, lo and behold, there is not enough clearance between the hugger bracket and the brake line.
You can actually see a wear pattern on the disc where the floating calliper is being pushed out of kilter and applying increased pressure to the outside of the disc.

Rotating the wheel with the hugger fitted and then removed shows a significant difference in how much the rear wheel is free to rotate.

More worryingly, where the brake line and ABS cable are clipped together the bracket was pinching them against the swing arm and had started rubbing away at the outer sleeve of the ABS cable.

I've now removed some metal from the bracket and refitted it. The brake line and ABS cable do not now contact the bracket. As a result the wheel now rotates freely.

It's a great shame because in all other respects the hugger is an excellent piece of kit.

Below are photos showing what I've done.

I have contacted MC seperatly about this but wanted to show peeps out there a resonably simple solution to the problem.


Cheers
Andres

 

[Deleted account 211025001]

Picture showing increased wear on outside half of rear disc

 

[Deleted account 211025001]

Cut marks showing how much eaxtra was removed from the ridges at the edge of the bracket.

The edges were also chamfered at the edges making the bracket slightly thinner (approx 2mm) at theese points.

 

[Deleted account 211025001]

Let's try atatching the image this time

 

[Deleted account 211025001]

The final result (yes I did fail metal work at school) showing extra clearance provided

 

[Deleted account 211025001]

I'd have also failed IT if we had it in my day!

 

[ktmmark]

i'm sure your ccm helped improve your skills @ bodgery

 

[Deleted account 211025001]

i'm sure your ccm helped improve your skills @ bodgery

Don't even go there

Andres

 

[Deleted account 211025001]

Stop Press

As mentioned in my previous post I contacted MC direct re. the problem with my particular hugger.

I feel it only fair to let the forum know that Dutch has been nothing but extremley helpful and professional in resolving the matter.

It has now been resolved to my complete satisfaction and I would have absolutley no qualms in dealing with MC again.

If anybody is unhappy with their hugger they should, as Dutch has requested, contact MC direct.

Cheers Dutch

Andres

 

[Gog yn y De]

Is this a particular batch problem or a problem that is going to effect us all i.e. a recall?

 

[Gog yn y De]

Is this a particular batch problem or a problem that is going to effect us all i.e. a recall?

Sorry - a bit hasty in my posting.

I've just been out to take a look and can see that the hose has a fair bend in it and thus comes into contact with the bracket. However, I've only just had new rear pads fitted and the pads only seem to come in contact with the disk once during a revolution. Probably means I've got a another warped disk - I've only just had the front one replaced! Guess the dealer should have checked both disks, not just the front.

I'm off for a 5 hour spin tomorrow so I'll check what the damage is upon my return.