Four pistons provide you with huge stopping power but also have more modulation than the two-piston models

which is critical for chain retention over rough terrain

What's in The Box: Axis MK8

These are easy to lose

Roswheel Tour Trunk Pack - 8L - Blue Replace Images Four pistons provide you withThe perfect partner for our Waterproof Pannier and Rear Rack. An integrated attachment and closure system makes for a clean design, while inside, an extra protective base panel keeps more precious belongings safe. Features: Integrated rack attachment bag closure system (to reduce straps). Large reflectives on all outward facing aspects. Fully welded construction. Lightweight TPU PU Coated 420D Ripstop material. Durable base panel. A thick internal