Halafast 20inch Wheel Frame
The FBM Halafast --
Dialed For Modern Trail Riding -- Designed For Younger Riders
A 74.25 degree head tube angle, 13.5" chain stays (slammed), and a 9" stand over height keep the bike stable yet still nimble to whip.
The Halafast 20inch is based on the Steadfast, but scaled down for younger riders with input from Lukas Halahan.
We recommend a 28 or 30 tooth sprocket.
Handcrafted in the FBM Machine Shop in Ithaca, New York, USA
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| FRAME OPTIONS | |
| Colors | Clear, Gloss Black, Satin Trans Blue |
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| FRAME GEOMETRY | |
| Top Tube Lengths | 19-3/4" |
| Head Tube Angle | 74.25 degrees |
| Head Tube Height | 120mm |
| Bottom Bracket Height | 11-5/8" |
| Seat Tube Angle | 71 degrees |
| Standover Height | 9" |
| Rear End Length | 13-1/2" (slammed) |
| Dropout Spacing | 110mm |
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| 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 |
| 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)
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