Continental: Turns your MTB into a nimble city runabout The Double Fighter III is a real hit with mountain bike owners who mainly ride on the road. Now in a multitude of sizes including 650b, it's the perfect, affordable upgrade for this application. The centre with its light tread rolls smoothly and quietly on tarmac. Its shoulder lugs allow it to stay on track whether on park paths or gravel roads. The use of gumwall sidewall means that the tyre will be more resistant to urban detritus and the service life of the tyre will also be improved. A new 180 threads per inch nylon casing improves handling and speed. Ideal for commuters needing on/off road performance and reliability.Our most popular road going MTB tyre.Fast centre tread with shoulder lugs for assured traction on occasional offroad rides