Surly 4130 CroMoly steel. Custom double-butted trumpet tube main triangle. TIG-welded. ED coated.
12mm horizontal and vertical slotted with derailleur hanger and Surly “Gnot-Boost” 135, 142, and/or 148mm hub spacing compatibility
51mm I.S. disc caliper mounts, 180mm max rotor size
Two bottle-mounts on S and M, three bottle-mounts on L and XL, dropper post routing, rack and fender mounts
Seatpost clamp diameter
33.1mm (Surly Stainless included)
Front Derailleur Clamp Diameter
34.9mm, high direct-mount (adapter included)
Bottom bracket shell
30t Boost 1x, 24/36t Boost 2x
29 x 3.0"
15mm Thru-Axle, 1-1/8˝ steerer tube, 203mm disc brake clearance and 29 x3.0" tire clearance
Andy's Apple Red
Dark Black (Frameset Only)