Surly Ring 42t x 110mm Stainless Steel MFPN=09607 which improves the durability of Model Spike Race 33 Weight-346 Casing Durability:Durable Plus Grip Plus Compound BK00589

Surly Ring 42t x 110mm Stainless Steel MFPN=09607 which improves the durability of Model Spike Race 33 Weight 346 Casing Durability:Durable Plus Grip Plus Compound BK00589 which improves the durability of bearing races and reduces spinning resistance and noise Number of Chainrings No Rings No Spider IncludedDrivetrain Speeds 12Drivetrain Speeds 13Chainring BCD Direct Mount SRAM 8 BoltChainline Hub Compatibility 135 142 Road Disc Hubs < 415 mm ChainstayChainline Hub Compatibility 135 142 Road Disc Hubs > 415 mm ChainstayColor BlackCrank Length (mm) 170Crank Intended Use RoadBB Included NoPedal Spindle 9 16"Spindle Interface Type SRAM DUBDefined Color Black