Big Block

Big Block


The Big Block represents our vision of the ideal track frame for the modern fixed-gear rider. This is the track bike that we’ve always dreamed of owning and we are proud to make that dream available to you.

It was designed first and foremost as a true competition-ready track frame but was destined to see usage beyond the velodrome, so we made some tweaks to the equation. Instead of the track bike norm 25c max tire clearance, it fits a 32c cross tire and has a single set of water bottle mounts for all day in the saddle. The front and rear of the bike are drilled out for a brake, so single speeding (or double brake fixed) is no problem. Our proprietary 612 Select double-butted cro-moly steel soaks up bumps and sprints like a champ. Each piece of tubing on every frame size has been carefully scrutinized and specifically chosen to create the best ride possible. This includes butting placement, tubing diameter and wall thickness. The package is finished off with a custom headtube badge, brazed-on seat collar, custom bottom bracket and signature Hennepin Bridge dropouts. We add an E.D. coating for rust prevention before applying a classic wet paint finish. Attention to detail is our mantra and it shows in every aspect of this meticulously-designed, beautifully-constructed track racer.

Big Block


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    612 Select Tubing

    Our proprietary blend of 4130 double-butted CroMoly tubes. Every piece of tubing on every frame size has been carefully chosen to provide the best ride possible.

    E.D. Coating

    In Electrophoretic Deposition, or E.D., coating the frame or fork is placed in a paint bath where an electric charge is applied. This fuses a thin layer of black satin coating to the tubes inside and out. This coating acts as both a rust preventative inside and a primer out.

    Custom Details

    We’re way into the handbuilt touches when it comes to our frames. Which is why you’ll find things like internal cable routing, custom dropouts, lugged crown forks, reinforcements on the bottle bosses, hidden fender mounts, etc on our framesets.

    Signature Dropouts

    Our signature horizontal dropout has become one of our calling cards. It functions superbly, looks way cool, and the adjustment screw allows the use of quick release wheels.

    Frame + 612 Select CroMoly steel. Double butted down, top, and seat tubes. Externally tapered, ovalized, and dimpled chain stays, tapered seat stays
    Fork + 4130 CroMoly tapered fork blades, lugged crown and matching dropout. Straight steertube
    Rear Spacing + 120mm
    Brake Compatibility + Road caliper mid reach 47–57mm
    Seatpost Diameter + 27.2mm
    Headset + 1-1/8" threadless, EC34 upper & lower, Crown Race 30mm
    Bottom Bracket Shell + 68mm English
    Chainring clearance + 60t max
    Tire Clearance + 700c x 32mm
    Extras + E.D. coated for durability and rust prevention
    Headset + VP 1-1/8" threadless, polished silver
    Stem + Kalloy 1-1/8"" threadless, 31.8mm clamp, polished silver
    Handlebar + Kalloy 700mm Riser, polished silver
    Grip + Lock-on Grip, black
    Brake Lever + Tektro FL750, polished silver
    Brakeset + Tektro R539, mid reach, front installed, rear included, polished silver
    Crankset + All-City 612 Track Crank, 165mm, 46t ring, polished silver
    Bottom Bracket + Square Taper, 68x110mm steel cups, sealed bearings
    Seatpost + 27.2mm, polished silver
    Saddle + All-City Gonzo, black
    Cog + All-City standard, 17t
    Lockring + All-City standard
    Chain + KMC, silver, 1/8"
    Hubs + All-City Standard Fix/Free, 32h, polished silver
    Rims + Sun CR-18, 32h, polished silver
    Tires + Vittoria Zaffiros, 700c x 28mm, steel bead
    Big Block Geometry Line Drawing
    Select up to 3 sizes to view:

    Size 46cm 49cm 52cm 55cm 58cm 61cm
    Head Tube Angle (A) 73 73.5 74 74.5 74.5 75
    Seat Tube Angle (B) 75 75 74.5 74.5 74.5 74.5
    Top Tube Length (C) 520 535 550 565 585 605
    Seat Tube Length (D) 460 490 520 550 580 610
    Chainstay Length (E) 396 396 396 396 396 396
    Bottom Bracket Drop (F) 58 58 58 58 58 58
    Fork Offset (G) 32 32 32 32 32 32
    Total Fork Length (H) 375 375 375 375 375 375
    Head Tube Length (I) 95 110 130 150 175 200
    Standover (J) 750 772 796 821 847 874
    Wheelbase (K) 945.5 956.8 963.2 973.9 993.9 1008.8
    Stack (L) 508.8 524.6 545.3 566 590.2 615.9
    Reach (M) 383.7 394.4 394.4 398.8 421.3 434.2
    Handlebar Width 40 40 42 42 44 44
    Stem Length 80 90 100 100 110 110
    Crank Arm Length 165 165 165 165 165 165
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    BK8367 49cm Pink Fade Complete
    BK8368 52cm Pink Fade Complete
    BK8369 55cm Pink Fade Complete
    BK8370 58cm Pink Fade Complete
    BK8371 61cm Pink Fade Complete
    FM0463 46cm Pink Fade Frameset
    FM0464 49cm Pink Fade Frameset
    FM0465 52cm Pink Fade Frameset
    FM0466 55cm Pink Fade Frameset
    FM0467 58cm Pink Fade Frameset
    FM0468 61cm Pink Fade Frameset