Steadfast Frame

FBM Steadfast Frame

The FBM Steadfast -- Dialed For Modern Trail Riding

A 74.25 degree head tube angle, 13.75" chain stays (slammed), and a 9.25" stand over height keep the bike stable yet still nimble to whip.

At high speeds and roasting a set you want to keep it simple; you don't want to have think of anything except that feeling.

We recommend a 28 tooth sprocket.

Handcrafted in the FBM Machine Shop in Ithaca, New York, USA
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Colors Clear, Tractor Green, Trans Brown
Top Tube Lengths 20-3/4", 21", 21-1/4", 21-1/2"
FBM Steadfast Frame - Trans Brown
FBM Steadfast Frame - Tractor Green
Head Tube Angle 74.25 degrees
Head Tube Height 120mm
Bottom Bracket Height 11-5/8"
Seat Tube Angle 71 degrees
Standover Height 9-1/4"
Rear End Length 13-3/4" (slammed)
Dropout Spacing 110mm
FBM Steadfast Frame - Mid Section
FBM Steadfast Frame - Double Bend Chain Stays
FBM Steadfast Frame - Dropouts
Head Tube Integrated - Externally Machined
4130 Chromoly
Top Tube 1-1/4" O.D. Double Butted
4130 Chromoly
Top Tube Gusset 3D Laser Cut
4130 Chromoly
Down Tube 1-3/8" O.D. Double Butted
4130 Chromoly
Down Tube Gusset 3D Laser Cut
4130 Chromoly
Bottom Bracket Mid - Internally machined
4130 Chromoly
Seat Tube Internally Butted
4130 Chromoly
Seat Post Clamp A Seat Clamp is Required
Seat Stays 3/4” O. D. x 0.035" Wall tapered to 5/8" OD
4130 Chromoly
Chain Stays Double Bend
3/4” O. D. x 0.049" Wall tapered to 5/8" OD
4130 Chromoly
Seat Stay Bridge 5/8" OD Tube
4130 Chromoly
Chain Stay Bridge 3/4" OD Tube
4130 Chromoly Plate
Capped Stays Yes
Dropouts For 14mm axles
Heat Treated 3/16" Thick 4130 Chromoly
Brake Position Chain Stay
Brake Type Welded 990
Cable Stop Threaded and Slotted
Cable Guide Dual Slotted Tube
Rear axle positions (with new chains)
  • 13-7/8" without a half link - 28/9, 30/11, 33/12
  • 14" with a half link - 25/9, 28/10
  • 14" without a half link - 30/10
  • 14-1/8" with a half link - 28/9, 30/11, 33/12