Wolf Tooth Components Semi-Internal EC44 Premium Upper& Lower Headset Black ModelNumber=H3415 Surly 4130 chromoly steel main

Surly 4130 chromoly steel main triangle double-butted frame

5" Tire Type Tubeless Ready Rim Material Alloy Hub/Brake Compatibility 6-Bolt Disc Axle Length 12 X 148Mm Cassette Compatibility HG11

T8 Torx-compatible wrench

– Fulfills all regulations of the international ski associations

Unidirectional carbon fiber crank arms steel axle and aluminum chainrings

Wolf Tooth Components Semi-Internal EC44 Premium Upper& Lower Headset Black ModelNumber=H3415 Surly 4130 chromoly steel mainPremium 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