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Hope RX4 calipers
 

[Closed] Hope RX4 calipers

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[#10457716]

They LOOK great but they don't fit, you cant adjust them so the rotor doesn't rub the caliper, you've got zero chance of centering the rotor!

Anyone else have this issue, at this rate I am going back to Shimano, never had this issue with their brakes!


 
Posted : 26/01/2019 7:34 pm
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10 minute job to fit on my stigmata 😍, would NOT go on my Caad 10, had to send em back 😔


 
Posted : 26/01/2019 8:09 pm
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How come you can’t adjust them? They look like they have slotted holes from photos.


 
Posted : 26/01/2019 8:38 pm
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What rotors and what size?


 
Posted : 26/01/2019 8:41 pm
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I have similar issues. The pistons don't retract after you release the lever so the pads always rub. Going to break the habit of a lifetime and take the bike to my LBS on Monday to see if they can sort them out.


 
Posted : 26/01/2019 8:59 pm
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The pistons don’t retract after you release the lever so the pads always rub.

Have you lubricated the pistons? There's a Hope video on how to do it. Just needs a cotton bud with some light oil rubbing around the sides of the pistons.


 
Posted : 26/01/2019 9:03 pm
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The callipers are pushed as far over as they will go and the rotors still rub one side of the Caliper body, and with pads in they don’t turn at all!


 
Posted : 26/01/2019 9:17 pm
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Which side of the caliper. 6 bolt or centrelock? Flat mount or postmount calipers?


 
Posted : 26/01/2019 9:25 pm
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The callipers are pushed as far over as they will go and the rotors still rub one side of the Caliper body, and with pads in they don’t turn at all!

Some frame or fork/brake/hub/discs are not compatible even though they all use the same standard.


 
Posted : 26/01/2019 9:38 pm
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If they're 6 bolt discs you could shim them out if they are fouling on the inboard disc surface.


 
Posted : 26/01/2019 9:58 pm
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no issues with them on my 2016 Arkose - and the performance is in a different league to Shimano.


 
Posted : 26/01/2019 11:47 pm
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Love mine but had early issues with front Caliper touching spokes under hard braking. Solved by using a spacer inside rotor (6-bolt)
2018 Spesh Diverge


 
Posted : 27/01/2019 12:14 am
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Hope seem to manufacture the RX4 caliper at one end of the tolerances for disc brake mounts. Using cheap post mount adaptors mine wouldn’t fit but using Hayes front and Shimano rear I have no rub, but the caliper are at the limit of their range. Having fitted, modulation and power is better.


 
Posted : 27/01/2019 12:57 am