Trek Bikes Park Tool IR-1.3 Internal Cable Routing Kit Blue Shop

) guide cables with attached magnets and unique fittings

Barbed adapter — Threads into the end of brake & shift cable housing as well as hydraulic brake hose

Rubber adapter — Securely holds electronic shifting wire such as Shimano® Di2, SRAM® RED® eTAP®, FSA® K-Force® WE®, and Campagnolo® EPS

Di2®-specific adapter — Specially-designed connector clips into the end of Shimano® E-tube® Di2® shift wire

Di2® EW-SD300-specific adapter — Specially-designed connector clips into the end of Shimano® E-tube® Di2® EW-SD300 shift wire

Reverse-polarity magnet — feeds into the opposite end and meets the leading cable in the middle, aiding in routing on frames with tricky interior shapes

Double-threaded barb — Securely attaches new housing or hydraulic hose to existing housing or hose, allowing for easy replacement without redoing the routing

Guide magnet — routes guide cables through the frame from the outside”