BradJohnson Posted January 1, 2011 Report Share Posted January 1, 2011 What does a break booster do and how does it work ? Quote Link to comment Share on other sites More sharing options...
trails4lif3 Posted January 1, 2011 Report Share Posted January 1, 2011 hey thier its brakes frist of all a brake boster works by stiffing up the brake mounts means less frame flex wich makes a better brake and more feal and response in the lever Quote Link to comment Share on other sites More sharing options...
BradJohnson Posted January 1, 2011 Author Report Share Posted January 1, 2011 hey thier its brakes frist of all a brake boster works by stiffing up the brake mounts means less frame flex wich makes a better brake and more feal and response in the lever Hi I don't notice my brakes flexing will they still be doing it, if I were to put a booster on will it definitely make my brakes better hey thier its brakes frist of all a brake boster works by stiffing up the brake mounts means less frame flex wich makes a better brake and more feal and response in the lever Hi I don't notice my brakes flexing will they still be doing it, if I were to put a booster on will it definitely make my brakes better Quote Link to comment Share on other sites More sharing options...
6ft-midget Posted January 1, 2011 Report Share Posted January 1, 2011 As said it'll stiffen up your brake mounts, but not all frames need them. My brake, for instance, is stupidly stiff yet i don't run a booster. What frame are you running? Quote Link to comment Share on other sites More sharing options...
Jon Alty Posted January 2, 2011 Report Share Posted January 2, 2011 (edited) As you dont know what it is, you probably dont understand what other people are saying, about flex and such. Ill try my best to explain; When you run a rim brake, such as Magura HS33's or a Vee, when you squeeze the brake the pads push against the rim. Just as the pads push against the rim, the rim pushes on the pads (in effect) in the opposite direction (Newtons 2nd(?) law), and and as the pads are attatched to the frame on the mounts, an outwards force acts on the brake mounts. When this happens, many frames will flex outwards, which means some of the force you are applying through the brake is being used to bend the frame outwards, as opposed to pushing (and holding) the pads onto the rim, so you loose some braking power. A brake booster is a piece of metal which goes accross both mounts on the frame, so when you pull the brake leaver, the booster stops the frame flexing outwards, as they are very stiff in the plane the force is acting, so alot more of the force you are applying goes into actually braking, so you get a better feel and a better brake. If you jump off your bike, stand behind your bike preferably, and look at your brake setup, squeeze the brake really hard, and you will see the pads touch the rim (hopefully ). Look to see the frame bends outwards when you do this. If it does, then you need a booster. You may have a 'built in' booster on your frame (it will look like a big guesset accross the seatstays area). A booster wont definitely give you a "better feeling" brake, as it may not actually do that much if your frame doesnt flex that much. Hope this helped, although its pretty long. Edited January 2, 2011 by Jon Alty Quote Link to comment Share on other sites More sharing options...
BradJohnson Posted January 2, 2011 Author Report Share Posted January 2, 2011 As you dont know what it is, you probably dont understand what other people are saying, about flex and such. Ill try my best to explain; When you run a rim brake, such as Magura HS33's or a Vee, when you squeeze the brake the pads push against the rim. Just as the pads push against the rim, the rim pushes on the pads (in effect) in the opposite direction (Newtons 2nd(?) law), and and as the pads are attatched to the frame on the mounts, an outwards force acts on the brake mounts. When this happens, many frames will flex outwards, which means some of the force you are applying through the brake is being used to bend the frame outwards, as opposed to pushing (and holding) the pads onto the rim, so you loose some braking power. A brake booster is a piece of metal which goes accross both mounts on the frame, so when you pull the brake leaver, the booster stops the frame flexing outwards, as they are very stiff in the plane the force is acting, so alot more of the force you are applying goes into actually braking, so you get a better feel and a better brake. If you jump off your bike, stand behind your bike preferably, and look at your brake setup, squeeze the brake really hard, and you will see the pads touch the rim (hopefully ). Look to see the frame bends outwards when you do this. If it does, then you need a booster. You may have a 'built in' booster on your frame (it will look like a big guesset accross the seatstays area). A booster wont definitely give you a "better feeling" brake, as it may not actually do that much if your frame doesnt flex that much. Hope this helped, although its pretty long. Thanks a lot this really helped As said it'll stiffen up your brake mounts, but not all frames need them. My brake, for instance, is stupidly stiff yet i don't run a booster. What frame are you running? I'm using 26" mad phase 1.3 frame its pretty good Quote Link to comment Share on other sites More sharing options...
6ft-midget Posted January 2, 2011 Report Share Posted January 2, 2011 I'm using 26" mad phase 1.3 frame its pretty good Ah, that was my previous frame and I loved it. I found it too flexy without a booster though, but it's personal preference really. Quote Link to comment Share on other sites More sharing options...
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