Wolf Tooth Components Semi-Internal EC44 Premium Upper& Lower Headset Black ModelNumber=H3415 }SRAM GX Eagle T-Type Ebike

}SRAM GX Eagle T-Type Ebike Crank Arm Set - 160mm ISIS Black

Surly 4130 chromoly steel main triangle double-butted frame

Unidirectional carbon fiber crank arms steel axle and aluminum chainrings

Rings 48/35Number of Chainrings DoubleDrivetrain Speeds 12Chainring 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 CarbonCrank Length (mm) 160Crank Intended Use RoadBB Included NoPedal Spindle 9/16"Spindle Interface Type SRAM DUBDefined Color Carbon

5 Defined Color Gray Activity Cycling Size 5

Wolf Tooth Components Semi-Internal EC44 Premium Upper& Lower Headset Black ModelNumber=H3415 }SRAM GX Eagle T-Type EbikePremium Wolf Tooth headset allows shift and brake housing to run internal below the stem Five layer weather sealing to keep internals clean include: Custom molded captive rubber seal at the cable entry ports, custom overmolded dual lip crown race seal interface with frame or EC44 cup, steer tube o ring seal, silicone dual lip bearing seals Enduro stainless bearings 7. 8mm upper stack Made in MN, USA Title Default Title