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edscoble
Higher end shimano stuff has ceramic pistons no?
@coventry_eagle @chiroshi
Hose design is where you lose modulation when you mix and match. If I remember right, Bh59 is a small bore pressure hose, wheras the BH90 is a larger/volume bore, hence either loss of modulation or bite if you mix and match. Old saint's/Zee/XT 4 pot stuff used to be fitted with volume hoses.