Rear disc brake XT M8120 4 Pistoni IM8120JRRXSA170 Shimano brakes MTB - high rigidity, the 10% more rigid than the previous model - Compatible gear lever support: I-Spec EV or with Collarino Attention plant sold with hydraulic tube detached from the lever, necessary spurous before assembly. - Gear Lever Support Compatible: I-Spec Ev or with Collar Warning System Sold With Hydraulic Hose Detaled From The Lever, necessary to Drain Before Assembly. All products sold by Ridewill are New and they have a guarantee if not otherwise specified in: 24 months for private individuals (Tax receipt) for defects in compliance with the law. 12 months for companies (Accompanying invoice with VAT number) in accordance with the law All Products Sold by Ridewill Are New and have Warranty UNLESS Otherwi.