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Dura ace brifters very sticky - Shimano Cycling

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You can squirt them with a spray lubricant (bicycle lubricant) to free them up if it is just a dirt issue, you need to pull the brake lever to expose the internal gearing mechanism, don't take anything apart.

If your shifter part is sticky, this usually clears things up. If it does not make trace through the derailleur cable and make sure it's not the cable hanging up instead of your shifter. Replace the cable and housing as necessary.

If its the brake lever, smae check of the cable system but also check the brake itself. The lever will feel sticky when there is a snag in the cable or if the brake is no longer returning with the same spring tension.

After that you can have them rebuilt or replaced. Depends on which model you have 8, 9, 10 (7800, 7900) as too the exact recommendation.

Posted on Dec 30, 2010

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I have the shimano dura ace 9150. Went out for a ride and the front derailleur won't shift but the rear shifts great


Way too many possibilities, especially with a description of "won't work." If the bike is brand new then you should be taking it back to the place you bought it.

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All the pieces are frequently available on EBAY, you may have to buy each piece separately, but it can be done. Did it myself just last year.

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Require assembly schematic for shimano dura ace shifter . left shifter lever failed, will not activate the front derailler, disassembled, found nothing broken, require advice regarding proper reassembly...


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change the cable ,because the have damage in the middle,

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Shimano Dura Ace Brake lever chatter


A few suggestions:

Lube/replace your cables and housings. If your housings are getting rusty on the inside, it will prevent the tension in the spring of the calipers from returning the brake levers to "home" position. Also, dura-ace levers have an internal return spring that is prone to breaking or coming off its peg (this can't be repaired without disassembling the lever).

Make sure your calipers are clean and move freely, and have sufficient spring tension to return to "home" position.

Be careful not to get lubricant on the braking surfaces, obviously.

As an experiment, remove the wheel and pinch the calipers together with your hands. Then, check to see how loose the brake lever is.

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