FBM STEADFAST FRAME 21.25"
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Trails ready! A 74.25 degree head tube angle, 13.75" chain stays (slammed), and a taller 9.25" stand over height keep the bike stable yet still nimble to whip. The tubing spec has been streamlined to have an 1-1/4" O.D. top tube and 3/4" to 5/8" tapered double bend chain stays.
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
|Top Tube Lengths||21-1/4"|
|Head Tube Angle||74.25 degrees|
|Bottom Bracket Height||11-5/8"|
|Seat Tube Angle||71 degrees|
|Rear End Length||13-3/4" (slammed)|
|Weight||5 pounds (21" top tube)|
|Head Tube||Integrated - Externally machined 4130 Chromoly|
|Head Tube Height||120mm|
|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
|Chain Stays||Double Bend
3/4” O.D.x 0.049" Wall tapered to 5/8" OD
|Seat Stay Bridge||5/8" OD tube bridge 4130 Chromoly|
|Chain Stay Bridge||3/4" OD tube bridge 4130 Chromoly|
|Dropouts||Heat treated 3/16" thick 4130 Chromoly for 14mm axles|
|Brake Position||Chain Stay|
|Cable Stop||Threaded and Slotted|
|Cable Guide||Dual Slotted Tube|