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Avid Disc Mech. & Ultegra Shifter Problems
My Avid mechanical disc brakes and Ultegra shifters on my tandem don' seem that compatible with each other. The brake lever is bottoming ou before it gets a good grip on the brakes. Is there any device tha compensate for this incompatibilty? Thanks, Peac -- james2u |
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On Thu, 23 Sep 2004 14:05:41 -0400, Alex Rodriguez
wrote: In article , says... My Avid mechanical disc brakes and Ultegra shifters on my tandem don't seem that compatible with each other. The brake lever is bottoming out before it gets a good grip on the brakes. Is there any device that compensate for this incompatibilty? Thanks, Peace Yes, you can buy a device that increases the cable pull. I think it it is called an Avid thingamajig. You should also make sure you have properly adjusted the brakes so that there is minimal clearance between the pads and the brake rotor. ------------- Alex Dear Alex, Possibly the Avid rollamajig: http://www.performancebike.com/shop/...tegory_ID=5132 Carl Fogel |
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james2u Wrote: My Avid mechanical disc brakes and Ultegra shifters on my tandem don' seem that compatible with each other. The brake lever is bottoming ou before it gets a good grip on the brakes. Is there any device tha compensate for this incompatibilty? Thanks, Peace I would ask the question directly to Avidbike.com Avid makes a Roll-a-majig, but it just smooths out the turn in a rea derailer cable without changing the leverage on the cable. Avid also makes Full-Metal-Jacket stainless steep tubing to be used i applications where you need housing and can run it straight. However you likely have the typical curved sections at the bar and brake end only. I would be looking into a hydraulic disc and bar-end shifter. If you need to pull more cable, you need something like a World Clas "V-Daptor. It decreases leverage and increases the amount of cabl pull -- daveornee |
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Alex Rodriguez wrote in message ...
In article , says... My Avid mechanical disc brakes and Ultegra shifters on my tandem don't seem that compatible with each other. The brake lever is bottoming out before it gets a good grip on the brakes. Is there any device that compensate for this incompatibilty? Thanks, Peace Yes, you can buy a device that increases the cable pull. I think it it is called an Avid thingamajig. You should also make sure you have properly adjusted the brakes so that there is minimal clearance between the pads and the brake rotor. ------------- Alex No, it's not an Avid Rollamajig- that's just a cable roller. What you want is a Travel Agent, which is a stepped pulley that allows the use of V-type brakes with non-V-levers. Assuming everything is adjusted correctly in the first place, the problem is that the Avid disc brakes you have use the same amount of cable pull as V-Type (aka linear pull) brakes, while the Ultegra brake levers pull less cable since they were designed for sidepull brakes. To fix this, you could install Travel Agents (see http://harriscyclery.net/site/page.c...=49&SKU=BR0330 ) or replace the Avid calipers with the "correct" road calipers: http://www.sram.com/en/avid/discbrak...earingroad.php Jeff |
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james- My Avid mechanical disc brakes and Ultegra shifters on my tandem don't
seem that compatible with each other. BRBR Do you have the 'raod' version of the calipers? made for road levers? If you have the MTB version, you will run outta cable. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
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