joe b Posted August 10, 2006 Report Share Posted August 10, 2006 As in the topic title, i'm just wondering what is the best way to bed in an Avid BB7 Mechanical Disc Brake? I got mine the other day, i've set it up OK and now i just need to bed it in. At the moment i have just poured cold water on a few times and also muddy water, but it still isn't as good as i hoped for.Also, i heard that they are just generally shit for the first few days, for everyone; is this true?Cheers,Joe. Quote Link to comment Share on other sites More sharing options...
MikeCottTrials Posted August 10, 2006 Report Share Posted August 10, 2006 keep using it dufus ime disk brakes take alot of bedding in Quote Link to comment Share on other sites More sharing options...
JT! Posted August 10, 2006 Report Share Posted August 10, 2006 I never really got this muddy water bedding in idea. Just sounds like you get your nice new brake all muddy and shitty.Just chuck water all over it and ride. My avid was never any good. Quote Link to comment Share on other sites More sharing options...
Will Arnold Posted August 10, 2006 Report Share Posted August 10, 2006 just ride it, dont put mud on it, could contaminate it, and dont touch the rotor or pads, just let it do its thing Quote Link to comment Share on other sites More sharing options...
Matthew_Gibson Posted August 10, 2006 Report Share Posted August 10, 2006 Go down a big hill, keeping the brake on, so you come to a slow stop. to get the brake hot. Then put clean water over the disc. Then brake, should make a noise for about ten mins, but after that should be ace! Quote Link to comment Share on other sites More sharing options...
Mark W Posted August 10, 2006 Report Share Posted August 10, 2006 Word. Just use water It'll take a while for the f**king awesomeness to kick it, but it will.What rotor size did you go for? 160 or 185? Quote Link to comment Share on other sites More sharing options...
Gaz M Posted August 10, 2006 Report Share Posted August 10, 2006 If the bedding in fails, get an Avid Ultimate lever. Feck they are awesome on a BB7.The big hill and water method is one of the best. Try to stop as quickly as you can, lean off the back on the biek aand give the brake a hand full.Hes got one Quote Link to comment Share on other sites More sharing options...
oakley Posted August 11, 2006 Report Share Posted August 11, 2006 the best way to bed in an avid mechanical, from pastexperience is to sell it and buy a real disc brake, they are shash. hopes bed in nicely! Quote Link to comment Share on other sites More sharing options...
Onza Kieron Posted August 11, 2006 Report Share Posted August 11, 2006 the best way to bed in an avid mechanical, from pastexperience is to sell it and buy a real disc brake, they are shash. hopes bed in nicely! How Ef'in unhelpful are you...Do the clean water trick, don't touch the pads/rotor and don't take it off or anything, just leave it and drag it anywhere you go, have faith. Quote Link to comment Share on other sites More sharing options...
joe b Posted August 11, 2006 Author Report Share Posted August 11, 2006 Word. Just use water It'll take a while for the f**king awesomeness to kick it, but it will.What rotor size did you go for? 160 or 185?Mark, i got the 160 rotor; i didn't really want to go too mad on power, because i'm not really very heavy, now, am i? If the bedding in fails, get an Avid Ultimate lever. Feck they are awesome on a BB7.The big hill and water method is one of the best. Try to stop as quickly as you can, lean off the back on the biek aand give the brake a hand full.Yeah, like Gaz said, i have one. I'm just waiting for a spare part to come for it, though. So i haven't actually ridden the brake with it on, yet...It's progressing, i'll just throw clean water on the rotor/caliper before each ride, after riding up and down my street with my brake on. Hopefully this will do just the trick. Cheers for the help so far people, but i could still do with a few more ideas,Joe. Quote Link to comment Share on other sites More sharing options...
Ali C Posted August 11, 2006 Report Share Posted August 11, 2006 got my avid today (shhhh) popped it on, went out riding for ten mins, no water, no hills and its bedded in REET well! uber power.my bike is now a hydraulic free zone Quote Link to comment Share on other sites More sharing options...
ramps Posted August 11, 2006 Report Share Posted August 11, 2006 I just rode around for 5 mins dragging the brake, then pissing it through, and the another 5, for about half an hour, sorted Quote Link to comment Share on other sites More sharing options...
JT! Posted August 12, 2006 Report Share Posted August 12, 2006 (edited) my bike is now a hydraulic free zone Edited August 12, 2006 by JT! Quote Link to comment Share on other sites More sharing options...
T-Limburn Posted August 12, 2006 Report Share Posted August 12, 2006 whack loads of water on and ride around with the brake on for a while and then it deides to work Quote Link to comment Share on other sites More sharing options...
haydon_peter Posted August 12, 2006 Report Share Posted August 12, 2006 Ride down a hill dragging the brake then cool the disc down by pouring water over it. Repeat until bedded in. This method has worked on all the disk brakes I have owned.You should love the 160 Joe! We ride similar bikes and are both midgets, I get on really well with my brake so you will be 'reet. Quote Link to comment Share on other sites More sharing options...
Luke Drewery Posted August 12, 2006 Report Share Posted August 12, 2006 All I did was pour a cup of cold water over the brake (caliper and rotor), then ride really fast down my road and pull the brake hard, it will then make a funny noise and bite. Tadah, yor brakes bedded in. It should work shit hot from then on, mine has. Quote Link to comment Share on other sites More sharing options...
dave33 Posted August 12, 2006 Report Share Posted August 12, 2006 dont use water with avids they just dont like it Quote Link to comment Share on other sites More sharing options...
joe b Posted August 12, 2006 Author Report Share Posted August 12, 2006 whack loads of water on and ride around with the brake on for a while and then it deides to work dont use water with avids they just dont like it Hahahaha, i knew this would happen... Obviously, different methods of bedding in work for different people. Mine is bedding is slowly but definately surely! It's a lot better since i've put my Avid Ultimate lever on, thats for sure. I think i will give it the water treatment tomorrow morning, for the last time, though .Cheers the help guys,Joe. Quote Link to comment Share on other sites More sharing options...
dave33 Posted August 12, 2006 Report Share Posted August 12, 2006 well im pretty sure they are just saying that cus water does work well with most disc's but not avid's please try it with out water and it will be great honestly Quote Link to comment Share on other sites More sharing options...
omgnoseat Posted October 24, 2006 Report Share Posted October 24, 2006 bit of an old topic but i guess this is the best palce to askhad a discussion with my dad and he thinks that adding water when the disc is hot wil ruin the brake since the disc will bend..can anyone explain how this water bedding in works so i can prove him wrong Quote Link to comment Share on other sites More sharing options...
Greetings Posted October 24, 2006 Report Share Posted October 24, 2006 (edited) Get the disc wet and ride around braking. Water polishes the disc and gets it smooth. There were thousands of topics like this here and in NMC, it doesn't really matter if it's a BB7 or something else... edit: didn't realize the date It won't bend the disc because it's thin, it's like pouring boiling water into a thick glass - it'll break because the inside of the glass will expand quickly yet the outside will remain cool. With a thin glass the heat penetrates it straight away so it expands evenly. Glass isn't flexible, a disc is - that's why it would bend and not break.Still, we're talking about such small figures here that I don't think something like that could happen. Edited October 24, 2006 by Inur Quote Link to comment Share on other sites More sharing options...
paolo Posted October 24, 2006 Report Share Posted October 24, 2006 Get the disc wet and ride around braking. Water polishes the disc and gets it smooth. There were thousands of topics like this here and in NMC, it doesn't really matter if it's a BB7 or something else... edit: didn't realize the date It won't bend the disc because it's thin, it's like pouring boiling water into a thick glass - it'll break because the inside of the glass will expand quickly yet the outside will remain cool. With a thin glass the heat penetrates it straight away so it expands evenly. Glass isn't flexible, a disc is - that's why it would bend and not break.Still, we're talking about such small figures here that I don't think something like that could happen.I did get my 8" disk hot enough to burn myself while getting off my bike, I would say it's enough of a tempurature change to modify the heat treatement... Quote Link to comment Share on other sites More sharing options...
Ali C Posted October 24, 2006 Report Share Posted October 24, 2006 for heat treatment steel needs to be glowing cherry red I beleive, normal mtb use wont change the disks properties Quote Link to comment Share on other sites More sharing options...
Walleee Posted October 24, 2006 Report Share Posted October 24, 2006 for heat treatment steel needs to be glowing cherry red I beleive, normal mtb use wont change the disks propertiesYeh, it needs to be hotter than it's ever going to get under normal circumstances.It's just not going to happen, I can't justify it, but it's steel....... Quote Link to comment Share on other sites More sharing options...
JT! Posted October 24, 2006 Report Share Posted October 24, 2006 bit of an old topic but i guess this is the best palce to askhad a discussion with my dad and he thinks that adding water when the disc is hot wil ruin the brake since the disc will bend..can anyone explain how this water bedding in works so i can prove him wrong He's right.Water makes the disc cool very very quickly. This can cause it to warp becuase of parts contracting quicker than others.When you first get a disc it good to use water (but not on a red hot rotor), becuase bedding in a disc basicly makes the rotor and the pads nice and smooth. Water acts as a polish, it also makes the pads softer so they bed in quicker too. Quote Link to comment Share on other sites More sharing options...
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