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Mechanical disc brakes are toilet!

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  • May 25, 2019 at 9:43 pm #29687
    Rick_Rude

    My wife just bought a new bike with disc brakes but they’re Avid BB5s or something and they are utterly rubbish. I’ve got one bike with unbranded calipers that are better than than these, despite trying to dial slack out of them. 

    My only experience of discs has been Shimano hydraulics on MTBs and they will but you over the bars quick sharp. These mechanical things feel like trying  brake with 2 pieces of stale bread or something. You get what you pay for I guess. 

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  • May 26, 2019 at 5:52 am #942653
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    Jimthebikeguy.com

    They all take proper setting
    They all take proper setting up to really get them in the sweet spot, but some are certainly better than others. The problem with the avids is that only one pad moves, so the static piston has to be set very close to the rotor by aligning the caliper very carefully… Then the moving piston needs winding in so you get plenty of bite. Otherwise all that happens is the rotor just gets flexed.

    May 26, 2019 at 5:43 am #942651
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    huntswheelers

    Spyres are great mechanical
    Spyres are great mechanical calipers and Avid can be found the sweet spot…if it’s a new bike then get it back into the workshop to get it sorted. I have many coming in here hydraulic and mechanical citing poor performance….but down this way there is little need for discs ( you can all argue the disc /rim debate) and many have glazed disc pads…swap out with softer pads…bingo it’s okay…. It does vary area to area but like I say if it’s new….get it into the mechanic

    May 26, 2019 at 4:58 am #942649
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    Xenophon2

    You indeed get what you pay

    You indeed get what you pay for but I used to ride with a pair of Spyres and they were very good, on par  with the very top end rim brakes in terms of performance and the latter wore out my rims right quick. 

    Hydraulics are better but come with their own drawbacks where maintenance is concerned.

    Are you certain they’re mounted correctly?

     

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