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 Front brake too sensitive

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Montanarolo
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PostSubject: Front brake too sensitive   Sun Mar 05, 2017 1:15 pm

I find the front brake on my 2009 too sensitive. (I will admit to having a bad habit of pressing the lever furthest from the end, so only a little grabbing movement makes a lot of braking)
Anyone else think the same? Any suggestions for a remedy?
(tried searching the forum, didn't find anything so I guess I'm alone about this)

Edit: Oh, and I find the clutch lever heavy!
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Don Abbondio
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PostSubject: Re: Front brake too sensitive   Sun Mar 05, 2017 4:05 pm

shorty brake lever - long clutch lever?
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waterbottle
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PostSubject: Re: Front brake too sensitive   Sun Mar 05, 2017 10:15 pm

Yes , the clutch is heavy on the 09 model. Spend some of your children's inheritance on a Brembo 16 RCS radial master cylinder, it will almost halve the effort required to pull the clutch in.
I'm not to sure what you mean about the brake. Have you owned the GRiSO from New ? If not, it may have some Savage Metal sintered pads fitted ? Like tony said, a shorty lever may reduce the effect
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Montanarolo
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PostSubject: Re: Front brake too sensitive   Mon Mar 06, 2017 3:47 pm

Thanks for suggestions!
I bought the bike slightly used with 3000 km on the meter. Now 13000 km and it's about to get rollerised.
I tend to grab the brake lever close to its "hinge". Due to its sensitivity I easily lock up the brake with only a little pressure.
It would be a better habit to grab further out on the lever. The leverage would be greater but it would be easier to apply the appropriate pressure on the lever because the circle is greater out there. Struggling with the wording here, sorry.
Or, if somehow the brake didn't lock up so easily I could continue grabbing the lever near the "hinge"
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Grisonut
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PostSubject: Re: Front brake too sensitive   Mon Mar 06, 2017 6:23 pm

Used to own a 09 and the toughness of the clutch lever is due to the heavy duty design of the clutch plates...
I learned that from Pete and it makes sense anyway.
My 2013 is light and peachy, much better.
As for the brakes sensitivity, it feels perfect to me on my two current Grisos and the old 09 as well. Never had a problem.
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wardest
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PostSubject: Re: Front brake too sensitive   Mon Mar 06, 2017 9:37 pm

Brake lever too sensitive

While I don't have as much experience as many others on this forum , I have never felt that the front brake on my 2012 G is anything like sensitive. I always use a full hand to stop the thing unlike smaller Jap bikes I have had, where I was happy (bad habit) to use 2 fingers for traffic speeds,. When I had a ride my mates Duc 996 , that had sensitive brakes , near wet myself on first application, had to massively mentally reconfigure what I would do if an emergency stop .

Are the brakes brakes on your 09 standard ?

Regards
Mick
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ghezzi
Fra Cristoforo
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PostSubject: Re: Front brake too sensitive   Tue Mar 07, 2017 12:43 am

You is from Norway, maybe yous got a viking like mit and corresponding vice grip.

You 'lated to Thor?

Try braking with a single digit.
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Grisonut
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PostSubject: Re: Front brake too sensitive   Tue Mar 07, 2017 3:57 am

LOL^^^^^
A defective caliper would cause that...wants to seize but not quite (fortunately).
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Oz1200Guzzi
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PostSubject: Re: Front brake too sensitive   Tue Mar 07, 2017 12:53 pm

Try 3 fingers and if this is still too grabby, try only 2.
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Montanarolo
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PostSubject: Re: Front brake too sensitive   Tue Mar 07, 2017 3:05 pm

Thanks again everybody.
There doesn't seem to be anything conclusive regarding the brake. I'm only using two fingers now.
Changing the master cylinder for the clutch - I'll have to look into that - how much money are we talking about?

Not sure what Ghezzi means by " 'lated to Thor", but I do get a thor bum after a long day's riding!
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PostSubject: Re: Front brake too sensitive   Tue Mar 07, 2017 3:26 pm

Can't help with that. See Helga for a massage.

Regarding Grisonut's "partial seizing caliper", I have experienced this with a set of Monobloc calipers on a Ducati Hypermotard. It appeared the seal groove was not deep enough, resulting in a very tight fitting piston.

Symptom: 1st squeeze of the lever everything was normal. If you needed a 2nd brake application within a few seconds of the 1st, the lever felt rock solid but a normal squeeze/pressure of the lever would almost result in a wheel lock or trying to flip you over the bars.

Reason: The seals were taking up to 5 seconds to roll back, pulling the piston/pads off the disc.

Remedy: Remove one caliper from bike, remove pads, pump brake carefully so pistons protrude close to maximum travel. Thoroughly clean with brake cleaner. Then using a thin (pin stripe) paint brush, apply a small ring of rubber grease around the base of the pistons.

Carefully push the pistons back in, watching that as you push one in, another doesn't pop out.
Work the brake lever ............ then push pistons back, repeatedly, until you have an even and smooth action. If an individual piston resists freely moving in unison with the others, then it has a problem.

Re-install pads and caliper on the bike, then repeat for the other side.
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