Kool Stop Pastiglie Freno Organ. Shimano Xt

XT BR-M755,
compatible with 
Sram® mech. 9.0, 
Trickstuff the Cleg DH, 4.
Grimeca system 8

Hope Mono M4
Tech M4
Stealth Race E4
Tech 4 E4

peso: 20 gr