e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 165mm Self Extractor BLK Model-5x110BCD Gravel This concludes this Surly Bikes

This concludes this Surly Bikes product description

Deore M5120 rear derailleur is compatible with the Tanpan 11

The 1Zero HiTop S features the dependable ZM 900 hubset

Features an interlocking cable seal steerer tube seal bearing lip seal and dual-lip crown race seal keep the headset protected from outside contaminates Lower Stack Height 1 Material Aluminum / Steel Upper Stack Height 7 S

Compatible with King baseplate and 45 degree integrated crown races S

e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 165mm Self Extractor BLK Model-5x110BCD Gravel This concludes this Surly BikesA high performance weight optimized alternative to carbon fiber for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4 Brose S Mag TQ HPR 50 Fazua Yamaha Maxon and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E Enduro standards. Color Black Defined Color Black