The Big Block is a tried and true offering from All-City. These street fixed gear bikes have a set of bottle bosses, increased tire clearance and drilled for brakes. The 4130 frame is tough and survives years of heavy use by bike messengers worldwide. For 2020, the Big Block got a wild paintjob, while the frame details and build kit stays the same.

Features:
612 Select chromoly steel with double-butted main triangle, tapered stays and brazed-on seat collar
4130 Chromoly double butted fork with lugged crown and tapered blades
Velodrome legal track geometry
All-City Signature investment-cast stainless steel Hennepin Bridge track dropouts with built-in chain tensioner
E.D. coated for durability and rust prevention
Tire clearance: 700c x 32mm; 28mm with fenders

Big Block (Midnight/Frost/Violet) Complete: $999 MSRP
Frameset: $550 MSRP