Surly Lowside Frameset Green Astro Turf

Tubing
Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded. ED Coated. Heat-Treated chain stays

Rear Dropouts
Investment cast Surly 12mm horizontal dropouts with derailleur hanger, 145mm Gnot Boost spacing works with 142 or 148mm spaced hubs. Convertible to 135x10mm QR with Surly 10/12 adapter washers (sold separately)

Brake Compatibility
51mm I.S. disc, 180 Max Rotor Size

Braze-ons/extras
Down tube water bottle mount, internal dropper post cable hole

Seatpost diameter
30.9mm

Seatpost clamp diameter
33.1mm (Surly stainless included)

Headset/Steerer TubeZS44/28.6 Upper EC44/30 Lower

Front Derailleur
Clamp Diameter34.9mm

Bottom bracket shell
73mm shell width, threaded standard English (1.37˝ x 24t)

Chainring Clearance
Singlespeed Only: 34t at 55mm chainline; 40t at 57mm chainline

Tire Clearance
27.5 x 2.8"
Fork1-1/8", threadless, 110 x 15mm, 51mm I.S. Disc, 26 x 3.0" or 27.5 x 2.8", individual tire and rim combos affect tire clearance

ColorRainbow in the Dark