Tubing
Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded cargo specific engineered for stiffness and durability
Rear Dropouts
Vertical, 197 x 12mm spaced
Brake Compatibility
51mm disc mounts
Braze-ons/extras
Upper and lower tripple bottlecage mounts on downtube, Double waterbottle bosses on seatube (not included on the small), Surly Trip Guides for continuous brake/shift housing or brake hydraulic line (toptube and seatsaty routing), Internal dropper post routing
Seatpost diameter
30.9mm
Seatpost clamp diameter
33.1mm (Surly stainless included)
Headset/Steerer Tube
44mm
Front Derailleur Clamp Diameter
34.9mm, direct mount
Bottom bracket shell
100mm wide, threaded English (1.37˝ x 24t)
Chainring Clearance
No frame limitations. Use whatever you want
Tire Clearance
26 x 5.25˝, individual tire and rim combos affect tire clearance
Fork
Surly Wednesday, Tapered straight blade 4130 CroMoly. 468mm axle to crown, 47mm offset. 51mm I.S. front standard disc mount, 150mm x 15mm thru-axle dropouts (axle included), 100mm suspension fork compatible
Color
Thorfrost White (Complete Bike and Frameset)