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 GRiSO Brakes

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RIKBRIANT
Squinternotto
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PostSubject: GRiSO Brakes   Fri Aug 11, 2017 7:46 pm

Hi all,..

Im quite happy (for a given value of "happy") with the front brake on my 8V GRiSO.

HOWEVER....

The rear brake is ... er.. SHITE.  Shocked
I have a CX500 with a better rear brake,.. infact every bike I have EVER ridden has better rear brakes than this thing.....

Suggestions please...

RIK
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beetle
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PostSubject: Re: GRiSO Brakes   Fri Aug 11, 2017 8:03 pm

Hmm. My rear brake works fine. Might just need bleeding?


scratch
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EricS
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PostSubject: Re: GRiSO Brakes   Fri Aug 11, 2017 8:19 pm

Mine works fine too - can lock the rear any time I want..

Is the rear mushy (bleed) or wooden? If the later it could be contaminated pads and disc. Try replacing pads and cleaning the disc (ScotchBrite pad and brake cleaner).
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mark111
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PostSubject: Re: GRiSO Brakes   Fri Aug 11, 2017 8:20 pm

Me to, I think it is one of best rear brakes I have used.
Keep in mind it shouldn't be your primary source of braking.
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zebraranger
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PostSubject: Re: GRiSO Brakes   Fri Aug 11, 2017 11:41 pm

Mine work fine too, and prior to the GRiSO I was riding a Triumph with ABS for the previous 3 years.
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2highlander
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PostSubject: Re: GRiSO Brakes   Sat Aug 12, 2017 5:24 pm

In principle my rear brake also works fine and it's in best technical condition. I think the thread starter means that using the brake gives very little feedback what the rear wheel really does. I would subscribe that the GRiSO rear brake needs a more sensitive arse than other bikes.


Last edited by 2highlander on Sun Aug 13, 2017 1:05 pm; edited 1 time in total
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Brent S
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PostSubject: Re: GRiSO Brakes   Sun Aug 13, 2017 4:58 am

The feedback is relatively poor. Mine had a heap of slack in terms of the engagement of the lever. Had most of the slack taken out via the adjustment spindle and it now feels significantly better.
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sidrat
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 2:20 am

Rik, i have to say mine is pretty good too, although it does go "off" if i dont use it very often, its not going to stop the bike in a hurry, but usefully around ton, and to settle the rear end under heavy braking. I would investigate yours further, pads, fluid, adjustment?
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eeyore
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 3:28 am

The rear on mine (2016 2000 miles) has never been the best. Works ok around town but has no real bite and would struggle to lock the wheel on a dry road.
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Brent S
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 3:49 am

eeyore wrote:
The rear on mine (2016 2000 miles) has never been the best. Works ok around town but has no real bite and would struggle to lock the wheel on a dry road.

Something wrong there. Mine has more than sufficient bite to lock the rear on a dry road, as I inadvertently found out one day when braking hard prior to a tight right-hander! Shocked
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Oz1200Guzzi
Don Abbondio
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 3:53 am

I can lock my rear wheel, while in gear (so braking the engine too), stalling it. Something wrong...
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Stu400
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 5:50 am

Agreed, mine isn't amazing. But better than my Multistrada was. There's no slack, just doesn't feel very powerful
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waterbottle
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 5:53 am

My GRiSO has a very ordinary feeling rear brake, the Stelvio on the other hand will lock too easy. It's one of those " I'll fix it one day " things Rolling Eyes
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eeyore
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 8:06 am

Did MG change the master cylinder / linkage / lever ratio?
The rear brakes on these seem to be either too sharp or a little dull.

Just to confirm, my pads and discs are as new, the pedal is solid with no excessive play. I can check the pads but doubt they are contaminated with oil or anything.

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wardest
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PostSubject: Re: GRiSO Brakes   Mon Aug 14, 2017 10:46 pm

My rear brake. Woeful. Passes the emergency brake check as I ride out of my street when cold, but once warm it is best described as someone did above.
"works ok around town but has no real bite and would struggle to lock the wheel on a dry road"

I bleed it regularly to some degree of improvement, cleaned disc bobbins so they turn and the disc "floats"
Brake calliper and mount look straight . Brake pads are EBC HH. Still the same.
On riding twisties I know I can press on it hard as I like when setting up for a corner or a speed adjustment mid corner without risk of locking the wheel.

The performance that Tony speaks of is a dream . I have asked a few SME on this subject, meh is the usual reply or that's how it is.
I was thinking of a MC from a different bike , the sport might be a good place to start...
(Haven't even looked at the Sport to see if it's compatible)
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motor-timothy
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PostSubject: Re: GRiSO Brakes   Tue Aug 15, 2017 6:10 am

I'd say the rear brake on my 2009 GRiSO is mediocre. It has a fair bit of slack where you can press down the pedal without resistance and only the rear brake light comes on but no braking is done, and then only about the last about 0.5cm where it has a lot of resistance and starts braking. Very little feedback is given. I believe it is capable of locking up the wheel though if I apply enough force, as I've done so at around 50km/h. Not certain about highway speeds however.

But since 98% of my braking is done through the front brakes and the rear is really just there for support, it's fine. The front brakes are pretty amazing at that, it often surprises me how quickly I can come to a standstill.
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moby
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PostSubject: Re: GRiSO Brakes   Thu Aug 17, 2017 4:26 am

My experience is that it, the rear brake, doesn't have any linear feel. I do note that there is safety in knowing you won't overdo it when cornering and recently had an emergency stop and found with the front brakes (tyre) at about limit the rear got light and then the rear tyre skidded (controllably until released).

So, although not over happy with the perfomance it does have a safety factor in emergencies.
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