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  1. M

    Issues with GRX brakes - anyone moved to RX4+ calipers ?

    It's worth noting that the pads are much bigger than the Shimano flat mount standard and I presume the Sram Rivals. You may run into issues if you're planning to run the same rotors
  2. M

    Issues with GRX brakes - anyone moved to RX4+ calipers ?

    If I was you I'd purchase them from a shop and let them fit them for you, they can deal with the fallout if there's any issues. I might stick a new set of pads in this weekend to see if there's still a problem.
  3. M

    Issues with GRX brakes - anyone moved to RX4+ calipers ?

    I got the piston seals replaced by Hope after contacting them directly, annoyingly they didn't replace any of the three sets of pads that were ruined. I suspected another leak but that may have just been that I torched the pads rather than replacing them with new ones again.. so it's been sat in...
  4. M

    Issues with GRX brakes - anyone moved to RX4+ calipers ?

    I fitted the calliper and rotor today and bleeding the system was pretty trouble free following the Hope videos. Loads of power, easily able to put the bike onto the front wheel with two fingers on the hoods. Skip ahead two hours and I decided to ride the bike to the pub, screaming brakes.. I...
  5. M

    Issues with GRX brakes - anyone moved to RX4+ calipers ?

    How have the RX4+ calipers worked out? I've got one sat in front of me to replace my front Shimano 105 calliper that's had constant sticky piston issues. Just waiting on a set of Hope centre-lock rotors arriving. Sourcing parts is such a pain at the minute.. Cheers, Matt
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