fbm 2013 sword sq headtubes

The Sword Frameset is a tig welded, chromoly, single speed frameset with traditional track geometry handcrafted in small batches by FBM in Johnson City, NY.
When designing the frame, we wanted to keep the minimalist sleek lines of a track frameset, but also pay homage to FBM’s BMX roots;  we went with a classic double diamond frame, but one that uses an 1-1/8″ Campi spec integrated headset, the current standard in BMX, for our production models rather than a traditional headtube with pressed in headset cups.
When designing the fork we wanted to take the sleekness of a unicrown fork and integrate some of the boxiness of a classic fork crown to create a fork that looks both classic and modern.

fbm sword sq 56cm frameset dark trans blue

FBM Sword Fork Trans Black

click thumbnails for larger images
fbm sword 56sq frameset flat black front view   fbm sword 56sq frameset flat black front profile view   fbm sword 56sq frameset flat black seat stays view   fbm sword 56sq frameset flat black chain stays view   fbm sword 56sq frameset flat black chain stay profile view   fbm sword 56sq frameset flat black profileview   fbm sword 56sq frameset clear profile view   fbm sword 56sq frameset trans gold


Builds
* To see more images of the Sword frameset built up, check the Builds gallery.

Frame Specs
Size
(center to center)
Top Tube Length Head Tube Angle Seat Tube Angle Chain Stay Length Bottom Bracket Drop Stand Over Height
(approx)
Weight
48cm 50cm 74 74 390mm 55mm 759mm (29.9″) 4 lbs 2 oz
52cm 52cm 74 74 390mm 55mm 797mm (31.4″) 4 lbs 6 oz
56cm 56cm 74 74 390mm 55mm 836mm (32.9″) 4 lbs 11 oz
Head Tube 1-1/8″ Integrated (Campignola Spec)
45°x45° ACB (angular contact bearing) 41.8mm OD
Bottom Bracket Width 68mm
Seat Post Diameter 27.2mm
Rear Dropout Spacing 120mm
Material 4130 Chromoly
Fork Specs
Steerer Tube 1 piece CNC machined
300mm long
1-1/8″ threadless
Blades 1″ tapered to 1/2″
Dropouts 3/16″ thick laser cut
Axle Spacing 100mm
Fork Length
(crown to center of axle)
375mm
Rake 35mm
Material 4130 Chromoly
Weight 2 lbs 2 oz
How To Choose a Frame Size

First, measure your inseam.

How to measure your inseam
Stand with your back against a wall, your bare feet 6″ apart on a hard floor, and looking straight ahead. Place a book between your legs with one edge against the wall, and pull it up firmly into your crotch, simulating the pressure of your saddle while riding. Have a helper measure from the top edge of the book to the floor, in inches. This measurement is your inseam to be used when selecting you bicycle size, it is different than the inseam of your paints.

Our suggested sizes are as follows:

Size Inseam Range Height Range*
48sq 31″ to 32″ 5’5″ to 5’9.5″
52sq 32.5″ to 33.5″ 5’8″ to 6’1″
56sq 34″ to 35″ 5’11″ to 6’4″

* We don’t suggest using height to determine your frame size due to the variation of body types for a particular height.

Click frame drawing thumbnails for larger images

FBM Sword Frameset 48 SQ Dimensions FBM Sword Frameset 52 SQ Dimensions FBM Sword Frameset 56 SQ Dimensions

Looking for the Sword frame in a size not currently available, that uses a headset with pressed in cups, with some braze-ons, or with a custom paint job?  These options and more are available through the FBM custom frame program.

Handcrafted in New York