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Hello guys, I’m wondering if you could help me.
I am in the process of overhauling my permanently squealing hydraulic brakes, apart from the levers (RS505). That includes the rotors, pads, the calipers and even the hose.
Old setup:
– Caliper: RS785
– Hose: BH59New system:
– Caliper: R8070
– Hose: BH90I have internal cables, so am probably going to use something like: https://www.youtube.com/watch?v=QZaGL83RMFI (with e.g.: https://www.parktool.com/product/internal-cable-routing-kit-ir-1-2)
According to the Shimano Compatibility Chart: http://productinfo.shimano.com/#/com/2.4?acid=C-499 and this thread: http://weightweenies.starbike.com/forum/viewtopic.php?t=147493, ST-RS505/R8070 should work just fine using a BH90 straight-straight kit.
My questions:
1) Does a BH90-SB/-SBS kit imply BH90-SS (+extra parts)?
2) Is there anything else I should be aware of?
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kevvjj wrote:
Answering my original questions:
1) Does a BH90-SB/-SBS kit imply BH90-SS (+extra parts)?
No. A specific BH90-SS kit is needed.2) Is there anything else I should be aware of?Old setup:
– Caliper: RS785New system:
– Caliper: R8070
This won’t be possible (flat-mount calipers on a post-mount frame/fork).Anyways, unimaginably, a quick test of 1/5th the price resin pads instead of finned sintered ones completely muted the brakes (exact same method of bedding in – brake firmly from good speed without locking wheels about 10-15 times).
However, one of the pistons in the other caliper doesn’t move at even speeds even after cleaning, which keeps bending the rotor. They don’t sell those separately, so gonna have to replace the whole caliper.
Otherwise, everything’s nice apart from few things nothing to do with brakes. Completely fixable as well tho.
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