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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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FRAME OPTIONS
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
FRAME GEOMETRY
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
FRAME COMPONENTS
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
FRAME WEIGHT
Weight
5lbs
WARRANTY INFO
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