We no longer carry this tire due to it's width, it does not fit the Surron without some major tweaks such as removing the kickstand and setting the tire crooked in the swingarm to clear the chain. If you like the Intermediate to Hard Terrain performance aspects of the Dunlop MX53 we suggest looking at these tires instead which fit the Surron much better:
Bridgestone X30 Intermediate Terrain 16"
Michelin StarCross 5 Medium Terrain 16"
Maxxis Maxxcross Intermediate Terrain 16"