A meticulously designed, beautifully constructed track racer destined to take the modern fixed-gear rider beyond the velodrome.
The Big Block represents All-City's vision of the ideal track bike for everyday life. Take it to the streets or the boards. Wherever you ride it, the Big Block will hold up its end of the deal.
- 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
FUN, FAST, FLASHY
Built to be the track bike we’d always dreamed of owning, this competition-ready steel frame soaks up bumps and sprints like a champ. Boasting a single set of bottle bosses and bumped-up tire clearance, it’s drilled for brakes and fully street legal.
612 SELECT TUBING
Every piece of tubing on every frame size was carefully selected to provide the best ride possible.
DRILLED FOR BRAKES
Drilled for front and rear brakes when quick and safe stopping is needed off the track.
Run 25c tires on the track or swap ‘em out for 32c tires when you’re ready to hit the street.
LUGGED FORK CROWN
Thoughtful custom touches add class and style - perhaps where you least expect it.
SIGNATURE SEAT COLLAR
Train your eyes on that timeless and tasteful brazed-on seat collar, elegantly designed around the All-City logo.
Signature stainless steel Hennepin Bridge track dropouts add grace and a dash of pride for AC’s home turf.
REINFORCED BOTTLE BOSSES
Beautiful stars reinforce the bottle bosses and All-City's obsessive attention to detail.
LIQUID PAINT AND E.D. COAT
Topnotch wet paint finish sparkles with depth and luster, while an E.D. coating protects against rust.
Big Block Frame Sheet
Platform: Big Block
Size: Choose from 46cm, 49cm, 52cm, 55cm, 58cm, or 61cm
Defined Color: Black
Frame Type: Rigid
Fork Type: Rigid
Wheel Size: 700c
Frame Material: Steel
Fork Material: Steel
Front Axle: QR x 100mm
Rear Axle: 10x1 Threaded x 110 mm
Headtube Upper (SHIZ): EC34
Headtube Lower (SHIZ): EC34
- Seatpost Diameter: 27.2mm
Brake Type: Rim
Brake Mount Type: Rim, Short Reach
Bottom Bracket: English Threaded, BSA 68 shell
Stem Clamp: 28.6mm
Axle to Crown: 375mm
Fork Offset: 32mm
Max Tire Size: 700x32, 700x28 with fenders