FRAME SPEC

Frame Construction
4130 Chromoly, Natch tubing, double-butted main triangle, TIG welded, ED coated
Fork Construction
4130 Chromoly, Natch tubing, double-butted tapered fork blades, brazed lugs, ED coated
Rear Dropout Configuration
Semi-horizontal
Rear Hub Spacing
“Gnot-rite” 132.5mm.  10 x 130mm or 10 x 135mm
Front Hub Spacing
10 x 100mm
Rear Brake
Rim – Canti (removable posts)
Front Brake
Rim – Canti (removable posts)
Head Tube
Ø34mm
Steerer Tube
Ø28.6mm (1-1/8″)
Crown Race
Ø30mm (1-1/8″)
Stock Headset Upper (S.H.I.S.)
EC34/28.6
Stock Headset Lower (S.H.I.S.)
EC34/30
Seat Collar
Ø30mm
Seatpost
Ø27.2mm
Front Derailleur (Clamp)
Bottom-pull (Ø28.6mm)
Max Chainring (CL)[3]
1x (Road): 50T – 2x (Road): 39/53T
Bottom Bracket
68mm threaded (1.37″ x 24TPI)
Tire Clearance Frame [1][2]
700c x 42mm with or without fenders
Tire Clearance Fork [1]
29 x 2.0″ with or without fenders
Rigid Fork Spec
400 x 44mm
Max Suspension Fork Length [4]
N/A
Bottle Mounts Frame
2 Standard
Bottle Mounts Fork
N/A
Rack Mounts Frame
Yes (upper and lower threaded)
Rack Mounts Fork
Yes (upper and mid-blade threaded)
Fender Mounts Frame
Yes
Fender Mounts Fork
Yes
Other Features
Downtube mounted shifter bosses

[1] Different tire and rim combinations will result in different clearances.
[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not frame.
[3] Listed chainring clearance is worst case scenario.  Clearances vary widely depending on components and configurations.
[4] Suspension fork length listed at full extension (not at sag) 

GEOMETRY