A rear brake outer cable housing stop made by Nitto in Japan. A functional and elegant solution for your rear braking needs - available in 3 versions to suit your eyes and your dimensions. When using a cantilever brake, or center-pull style brake it is an essential stopping point for receiving the tail end of your brake housing. It is customarily hung from your bike's seatpost clamp bolt. Choose the shape you prefer, keeping in mind an appropriate size for your frame and rear brake's required cable travel distance. Material:Steel - AS-2: A basic cable stop mechanism L=45mm / W=13mm - AS-3: A slightly shorter offering of AS-2 L=35mm / W=11mm - AS-5: Wire constructed / Alternate aesthetic L=38mm / W=11mm