Tubing 100% CroMoly steel. Main triangle double-butted. TIG-welded
Rear dropouts Investment cast Surly track dropouts, 135mm spaced
Braze-ons I.S. disc tabs and removable cantilever bosses front and rear, fender eyelets front and rear, and dual water-bottle mounts
Seatpost diameter 27.2mm
Seatpost clamp diameter 30.0mm, Surly Constrictor included
Headset 1-1/8″ threadless
Bottom bracket shell 73mm wide, threaded English 1.37x24t
Tire clearance Fatties Fit Fine (FFF) chainstays and our custom fork give room for tires up to 2.7″ with plenty of mud and fender clearance left over. Seriously!
Fork Suspension corrected for 80mm travel
Weight 18″ = 5.0 lbs (2.3 kg)Fork – uncut = 2.34 lbs (1.1 kg)
Model Size | ST (C-T) | TT (C-C) | TT (Effec.) | HT Angle | ST Angle | BB Drop | CS Length | Wheel Base | S.O. Height | HT Length | FK Length | FK Rake |
---|---|---|---|---|---|---|---|---|---|---|---|---|
inch(mm) | inch(mm) | inch(mm) | degree | degree | inch(mm) | inch(mm) | inch(mm) | inch(mm) | inch(mm) | inch(mm) | inch(mm) | |
x-small | 14.0(355.6) | 20.5(521.2) | 21.5(545.0) | 71.0° | 73.0° | 1.7(42.5) | 16.5(419.0) | 39.9(1013.5) | 28.1(714.9) | 3.5(89.0) | 16.3(413.0) | 1.8(45.0) |
small | 16.0(406.4) | 21.3(541.6) | 22.2(565.0) | 71.0° | 73.0° | 1.7(42.5) | 16.5(419.0) | 40.7(1034.0) | 29.2(742.9) | 4.0(102.0) | 16.3(413.0) | 1.8(45.0) |
medium | 18.0(457.2) | 22.3(565.8) | 23.0(585.0) | 71.0° | 73.0° | 1.7(42.5) | 16.5(419.0) | 41.5(1054.3) | 30.5(773.8) | 4.5(114.0) | 16.3(413.0) | 1.8(45.0) |
large | 20.0(508.8) | 23.1(586.5) | 23.6(600.0) | 71.0° | 73.0° | 1.7(42.5) | 16.5(419.0) | 42.1(1070.1) | 31.8(806.9) | 5.3(134.0) | 16.3(413.0) | 1.8(45.0) |
x-large | 22.0(558.8) | 23.9(608.3) | 24.2(615.0) | 71.0° | 73.0° | 1.7(42.5) | 16.5(419.0) | 42.7(1085.8) | 33.1(841.6) | 6.3(159.0) | 16.3(413.0) | 1.8(45.0) |