Nofearnofun Posted May 21, 2012 Posted May 21, 2012 Hi All, I have Shimano M445 180/160 mm brakes on my bike, they are quite noisey and it seems as if they should have allot more power than they do. Are these generally good brakes? what could the problem be and how do I sort it out? thanks
Vinnydabutcher Posted May 21, 2012 Posted May 21, 2012 If they are new it is possible that they still need to "imbed" on the rotors. If they are 2nd hand, they might need to be bled. Could also be that the pads have picked up some kind of contamination - try a new set of pads and clean the rotors with and spirits or brake cleaner.
Octavian Posted May 21, 2012 Posted May 21, 2012 By the title of your thread I was ready to provide some advice on how to overcome bone fractures... petatodd, paulk, Agteros and 2 others 5
Eldron Posted May 21, 2012 Posted May 21, 2012 Coupla options... Take pads out and give them a light sanding.Add some Copaslip to the back of the pad.Give your rotors a good clean as Vinny says.
RockCoach Posted May 21, 2012 Posted May 21, 2012 (edited) If they are 2nd hand, they might need to be bled. I have seen some new brakes which needed bleeding before first use. Edited May 21, 2012 by slick
TwiggzSA Posted May 21, 2012 Posted May 21, 2012 M455 brakes are basically entry level so to begin with they're not the best but regardless they should still do the trick. Shimano naming scheme works on 3 digits the first being the series. 9 - XTR, 8 - Saints, 7 - XT, 6 - SLX, 5 - Deore, 4 - Alivio. Although there are the exceptions like the M505 brakes which are non-series meaning they're standalone entry level.
RockCoach Posted May 21, 2012 Posted May 21, 2012 Although there are the exceptions like the M505 brakes which are non-series meaning they're standalone entry level. Also known as the SOS model.
TwiggzSA Posted May 21, 2012 Posted May 21, 2012 Also known as the SOS model. +1 Or as every manufacturer of entry-level/mainstream bicycles favorite cost saver/price dropper!
geecee Posted May 21, 2012 Posted May 21, 2012 (edited) breaks3rd person singular present, plural of break Verb: Separate or cause to separate into pieces as a result of a blow, shock, or strain: "the rope broke with a loud snap". Noun: An interruption of continuity or uniformity. brakes3rd person singular present, plural of brake Noun: A device for slowing or stopping a moving vehicle, typically by applying pressure to the wheels.An open horse-drawn carriage with four wheels.A toothed instrument used for crushing flax and hemp.A coarse fern (genus Pteris, family Pteridaceae) of warm and tropical countries, frequently having the fronds divided into long linear... Verb: Make a moving vehicle slow down or stop by using a brake: "drivers who brake abruptly"; "an anti-lock braking system". Edited May 21, 2012 by geecee Grebel 1
Grebel Posted May 21, 2012 Posted May 21, 2012 Coupla options... Take pads out and give them a light sanding.Add some Copaslip to the back of the pad.Give your rotors a good clean as Vinny says. Listen to this man. He speaks wisdom. (I know because that is what I was going to say. The only thing I would add is that you clean your rotors with a solvent based cleaner (Thinners, alchohol but not the stuff you get from the bottlestore... or even benzine. Commercial Brake Cleaner would be your best bet and it is available from ant spares shop in an aerosol can) DON'T use turpentine or parrafin as these contain oils and that is the last thing you want to come into contact with your braking surface.....!!!
dracs Posted May 21, 2012 Posted May 21, 2012 M455 brakes are basically entry level so to begin with they're not the best but regardless they should still do the trick. Shimano naming scheme works on 3 digits the first being the series. 9 - XTR, 8 - Saints, 7 - XT, 6 - SLX, 5 - Deore, 4 - Alivio. Although there are the exceptions like the M505 brakes which are non-series meaning they're standalone entry level. I still can't fully get my head around the Shimano MTB hierarchy - so I thought I had a mix of SLX and XT on my bike, but officially the RD is "Deore XT"... so where does that stack up between XT, SLX and Deore....
The Drongo Posted May 21, 2012 Posted May 21, 2012 Hi All, I have Shimano M445 180/160 mm brakes on my bike, they are quite noisey and it seems as if they should have allot more power than they do. Are these generally good brakes? what could the problem be and how do I sort it out? thanks They should ??
The Drongo Posted May 21, 2012 Posted May 21, 2012 Isn't 'saint' heavenly downhill stuff? awesome. Fix-xed zeabre 1
RockCoach Posted May 21, 2012 Posted May 21, 2012 I still can't fully get my head around the Shimano MTB hierarchy - so I thought I had a mix of SLX and XT on my bike, but officially the RD is "Deore XT"... so where does that stack up between XT, SLX and Deore.... Yeah, I also had a WTF moment when they did that.Deore XT is XT. Most of the time when a bike is specced the RD will be a higher spec than the rest of the groupset.
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