CB4Ks in progress

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We are building a new batch of CB4Ks in the FBM Machine Shop

Featuring: A one piece CNC machined steerer tube, Roasted heat treated internally butted legs, Roasted heat treated 3/16″ laser cut dropouts that are angled at the bottom for grind clearance, a compression bolt that is brand new, (no longer ratchet style) for easy installation and removal, and clearance for 2.35″ tires.

Handcrafted in New York

Colors Black, Clear, Trans Red (Limited Edition)
Offset 35mm
Tire Clearance 2.35″
Weight 35oz
Material 4130 chromoly steerer tube, legs & dropouts
Aluminum compression bolt
Height 315mm
Steerer Tube Length 164mm
Bearing Race Requires press-on race
Steerer Tube Diameter 1-1/8″
Compression Bolt 25×1.5mm

fbm cb4k 2014 raw new compression bolt

fbm cb4k 2014 raw

fbm cb4ks black side view

fbm cb4ks black