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All-City Big Block Frameset

All-City Big Block Frameset
  • Color: Azure/White
  • Color: Silver/White
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All-City's Big Block is the face of modern fixed-gear riding, equally at home taking on the city streets as it is pounding the boards at the local velodrome. The classic chromoly steel frame rolls with UCI-legal track geometry that's as sharp as a tack and lets you transition seamlessly from the street to the track. The frame also accommodates up to 32mm-wide tires and includes a single set of water bottle bosses, increasing the Big Block's versatility even further. The Big Block is drilled for both front and rear brakes so you can choose how much stopping power you need. And all your favorite All-City details are present, including Hennepin Bridge dropouts with integrated chain tensioners, a lugged, straight blade fork, and stylish integrated seatpost collar.


Frame 612 Select ChroMoly steel. Double butted down, top, and seat tubes. Externally tapered, ovalized, and dimpled chain stays, tapered seat stay
Fork 4130 ChroMoly tapered fork blades, lugged crown and matching dropout. Straight Steertube

* Subject to change without notice.

Part Numbers

Option UPC MPN
Azure/White / 46cm 708752100725 FM4706
Azure/White / 49cm 708752100732 FM4707
Azure/White / 52cm 708752100749 FM4708
Azure/White / 55cm 708752100756 FM4709
Azure/White / 58cm 708752100763 FM4710
Azure/White / 61cm 708752100770 FM4711
Silver/White / 46cm 708752098121 FM4794
Silver/White / 49cm 708752098138 FM4795
Silver/White / 52cm 708752098145 FM4796
Silver/White / 55cm 708752098152 FM4797
Silver/White / 58cm 708752098169 FM4798
Silver/White / 61cm 708752098176 FM4799