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Disc rotors (Avid Juicy 7) - suggestions?

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Disc rotors (Avid Juicy 7) - suggestions?

Old 09-19-08, 10:18 PM
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grahny
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Disc rotors (Avid Juicy 7) - suggestions?

Recently picked up a used '06 Gary Fisher sugar 292, getting off the road a little and mixing it up with some mountain biking. Don't know if it happened in shipping, or was just never noticed by the seller (ebay), but the front rotor seems to be ever so slightly bent. It's rubbing the brake even with the pads all the way open. I've checked: Wheel (true), wheel is centered, rotor bolts, brake mount, brake mount bolts.

Last thing I did was pull the rotor off and lay it on a flat surface. It doesn't lay completely flat.. it's maybe 1.5mm off at most, if that. Thought about trying to just force it into shape, but I assume that could compromise the rotor and potentially lead to failure.

I'm new to the world of disc brakes so I'm looking for advice. The one that's bent is a Hayes (looks like a V7 - 160mm). Was just going to replace it with the same, but thought I'd check the BF contingency to see if anyone has suggestions for something better, more durable - the Hayes seems pretty nice, but I don't know jack **** about disc rotors. Brakes are something I don't skimp on or take risks with though.

Rest of the brake set up is Avid Juicy 7's w/ organic pads... Bontrager race lite wheels (29").

Thanks
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Old 09-19-08, 10:25 PM
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http://www.jensonusa.com/store/produ...ean+Sweep.aspx

or
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Old 09-19-08, 10:27 PM
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+1 Crescent
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Old 09-19-08, 11:11 PM
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yeah the rotor is steel so u can bend it, especially such a little distance, to do so have it mounted on the wheel and the wheel on the bike, spin the wheel where it rubs is where you need to bend, even brand new rotors need to be trued. if your having trouble put a white piece of paper or a light behind the caliper so you can see where the rotor hits the pads, oh yeah and use as wrench to bend the rotor, you dont' have to bend it much just tweek it,

ps i was assuming hydro brakes if u have mech brakes adjust them so they are way loose then tighten until rub starts, bend until no rub then tighten again then bend ect ect until the brakes are as tight as you want them and you get no rub, personally i then go a little tighter so that if somthing goes out of adjust later on i prolly still wont get rub cause rotor is uber true
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Old 09-19-08, 11:12 PM
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+2 to trying the crescent wrench to straighten the rotor. You should be able to get it into serviceable condition. If by some chance you can't I'd get the Avid Clean Sweeps. Also, depending on he riding you do I'd look at a bigger rotor on the front wheel. It will mean having to buy a caliper adapter to match the rotor but they're pretty cheap. Personally, I run a 185 on the front and 160 on the rear.

Mike
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Old 09-20-08, 07:20 AM
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Awesome... thanks for the advice
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