Louis p Posted June 14, 2007 Report Share Posted June 14, 2007 hi people.just got myself a avid bb7 set up, its the old style caliper with sd7 lever and shimano cale.i have set the brake up to how i like it, also with the pads hitting the disk straight but it still feels very spongy.does anybody have any ideas on how to stop this?thanks louis. Quote Link to comment Share on other sites More sharing options...
Mod Man Leo Posted June 14, 2007 Report Share Posted June 14, 2007 Get a slic cable,Worked for a vee a wile back Quote Link to comment Share on other sites More sharing options...
Rich Pearson Posted June 14, 2007 Report Share Posted June 14, 2007 1. Make sure the brake is set up PROPERLY (slacken off the mount bolts, tighten the pads on the disc, tighten the mount bolts, etc)2. Make sure the cable has the most direct route from the lever to the caliper. Even ziptying it to the forks or frame will cause enough of a kink to tighten the cables movement. A linear slic cable will help alot with this.3. Try and set it up using the barrel adjusters on the levers as LITTLE as possible.make sure the pads are mounted in the caliper properly.Following those guidlines SHOULD give you a nice, smooth feeling brake.Rich Quote Link to comment Share on other sites More sharing options...
dave85 Posted June 14, 2007 Report Share Posted June 14, 2007 4. On levers with leverage adjustment, wind it right out so the cable is furthest away from the pivot. Less power but less squidge, its a trade-off. Quote Link to comment Share on other sites More sharing options...
N.Wood Posted June 14, 2007 Report Share Posted June 14, 2007 5. Changing from an old Avid lever to an XTR sorted me out a treat. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted June 14, 2007 Report Share Posted June 14, 2007 6. Getting a Mono Trial sorted me out good and proper!I jest...Another little tip is to align the rotor RIGHT next to the fixed piston, this way, when you pull the brake, it won't have to flex the rotor over before it bites Quote Link to comment Share on other sites More sharing options...
basher Posted June 14, 2007 Report Share Posted June 14, 2007 6. Getting a Mono Trial sorted me out good and proper!I jest...Another little tip is to align the rotor RIGHT next to the fixed piston, this way, when you pull the brake, it won't have to flex the rotor over before it bites Ignore him hes a goon he dunt no what hes on about, donr get a hope. But the other thing he said is true. Quote Link to comment Share on other sites More sharing options...
Krisboats Posted June 14, 2007 Report Share Posted June 14, 2007 4. On levers with leverage adjustment, wind it right out so the cable is furthest away from the pivot. Less power but less squidge, its a trade-off.I always thought that was the other way round, i thought the furthest from the pivot point pulls the most cable through which exerts the most force and in turn provides the most power. Quote Link to comment Share on other sites More sharing options...
JT! Posted June 14, 2007 Report Share Posted June 14, 2007 I always thought that was the other way round, i thought the furthest from the pivot point pulls the most cable through which exerts the most force and in turn provides the most power.The further it is away from the pivot, the more cable it pulls though, it has less leverage at this point.Think how walnut crackers work. Quote Link to comment Share on other sites More sharing options...
Zordon Posted June 14, 2007 Report Share Posted June 14, 2007 Hose ends are very important. Make sure they are metal not plastic and they sit tight on the hose. Some good hosing will also make a difference. Currently I'm running a bb7 160mm with an xtr lever, standard cable, and jagwire hosing (with jagwire hose ends). The power adjustment on the lever is set for max power (=most spongy option) and I still have unbeatably solid lever feel hope trials owners can only dream about haha. Quote Link to comment Share on other sites More sharing options...
toyota200x Posted June 14, 2007 Report Share Posted June 14, 2007 I have ridden some peoples bikes and they have crazy quick and strong locking power. My bb7 on my Pure takes a second to lock but does not want to throw me over the bars like other peoples. Any tips on getting a stronger BB7? Burning or sanding the pads help?I'm sorry for jacking this thread. Quote Link to comment Share on other sites More sharing options...
deanie-b Posted June 15, 2007 Report Share Posted June 15, 2007 As already said above, the best way to enhance a cable brake is to use decent cable, odyssey linear slick.. Best cable ever?Make sure the cable's fairly short, with the route from the lever ( which must be avid or xtr by the way ) as straight as possible, gently held by a zip-tie down the fork leg is always good.In response to toyota200x :Yeah, cleaning your rotor and pads up will probably help. Boil your pads untill the grime comes off, then sand a little. Stick your rotor in the dishwasher also.Then, go to the top of a LARGEEEEE hill, and drag your break all the way down, don't give the rotor time to cool off, and immediatley drench it in freezing cold water.Also, make sure your cable is well lubed, and if it's just a shitter, I recommend you buy the one I linked above Quote Link to comment Share on other sites More sharing options...
RobinJI Posted June 15, 2007 Report Share Posted June 15, 2007 Just get a linear slick as said, that should help loads. Also set it up right. I always find the best set-up is to do what rich said, about clamping the pads on the rotor then doing up the bolts, then wind off the outer adjuster loads so its miles away from the disc, then adjust the cable so that when the levers where you want it to bite the arm of the caliper is at 90deg to the the cable. Then once thats set slowly wid off the iner fixed pad one click at a time untill it still makes a slight rubbing noise but doesn't actualy slow the wheel when its spinning freely, then just use the outer adjuster to adjust where the break bites. Quote Link to comment Share on other sites More sharing options...
toyota200x Posted June 15, 2007 Report Share Posted June 15, 2007 Is there any special way to get the pads out? Or do I just pull on the tabs? Quote Link to comment Share on other sites More sharing options...
Ash-Kennard Posted June 15, 2007 Report Share Posted June 15, 2007 squeeze together and pull. i dont take mine out as they are so rusty the tabs bend to be honest the best way of making your bb7's really unbelievably bitey is doing what tarty said, make the pad closest to the wheel as close to the disc as possible, then adjust the outer one so your lever is in a good position. Quote Link to comment Share on other sites More sharing options...
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