• Never touched hydraulic brakes before, and I need to bleed a rear, it's Shimano Ultegra rs685 shifters and disc calipers.

    Is this something I should even attempt if I've never done it before, or should I just hand it over to the LBS. They quoted 1.5 hours of workshop time to fix.

  • They quoted 1.5 hours of workshop time to fix.

    I like to tell people it could take longer if things don't go to plan and make sure people are prepared for that, but an hour and a half (£80ish at my rates) is a bit much for one brake, if things go well I'd say it's a half an hour job including getting the bike in the stand etc. It's not that hard really, I'd buy a bleed kit (epicbleedsolutions.com) and carefully have a go, then if you fuck it up take it to a different shop.

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