Berzerker 2.5 Frame
FBM Berzerker 2.5 Frame - Trans Black
Trans Black
FBM Berzerker 2.5 Frame - Trans Copper
Trans Copper
Featuring:  3D laser cut 4130 chromoly top and down tube gussets, an integrated seat post clamp, removable 990 mounts and cable stop, and tapered seat and chain stays.
  • The standover height was raised to 8-1/2"
Handcrafted in New York
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FBM Berzerker 2 - Trans Black - Headtube

FBM Berzerker 2 - Trans Black - Seat Clamp

FBM Berzerker 2 - Trans Black - Dropouts

FBM Berzerker 2 - Trans Black - Close Up

FBM Berzerker 2 - Trans Copper - Close Up
Colors Trans Black, Trans Copper
Top Tube Lengths 20-1/2", 20-3/4", 21"
Head Tube Angle 75 degrees
Bottom Bracket Height 11-7/8"
Seat Tube Angle 71 degrees
Standover Height 8-1/2"
Rear End Length 13-3/8" (slammed)
Without Brake Hardware
4 pounds 11 ounces (4.7 pounds)
Head Tube Integrated - Externally machined 4130 Chromoly
Top Tube 1-1/4" O.D. SuperTherm
Top Tube Gusset 3D laser cut 4130 Chromoly
Down Tube 1-3/8" O.D. SuperTherm
Down Tube Gusset 3D laser cut 4130 Chromoly
Bottom Bracket Mid - Internally machined 4130 Chromoly
Seat Tube Externally Machined 4130 Chromoly
Seat Post Clamp Wrap around integrated clamp with a captured nut
Seat Stays 3/4” O.D.x 0.035" Wall tapered to 1/2" OD
4130 Chromoly
Chain Stays 3/4” O.D.x 0.049" Wall tapered to 5/8" OD
4130 Chromoly
Bridges 5/8" OD tube bridges 4130 chromoly
Capped Stays Yes
Dropouts Heat treated 3/16" thick 4130 Chromoly for 14mm axles
Brake Position Seat stay
Brake Type Removable 990's (hardware included)
Cable Stop Removable (hardware included)