The SRAM Hydraulic Line Kit for Guide S4 Calipers is a premium replacement brake hose assembly designed specifically for riders who demand reliable, responsive braking on technical terrain. This OEM-quality component ensures your SRAM brake system maintains peak performance through aggressive trail and enduro riding conditions. Built as a genuine SRAM replacement part (Model ID: AC-MTBK-HYD-A1), this hydraulic line kit offers complete compatibility with SRAM’s latest S4 four-piston caliper technology.







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