Plus size tire | The new tubeless ready Rail Tracker is a lightweight single-ply tyre, which blends the blistering speed of a cross-country race tyre, with the go-getting grip levels required to ride all sides of the mountain. Fast rolling is the aim for the speedy Rail Tracker. The centre treads transition smoothly towards the shoulders, ideal for fast direction changes on technical trails. Open intermediate treads shed mud quickly, ensuring maximum grip at all times.