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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

TECHNICAL SPECS

Frame - 612 Select Chromoly Steel

Fork - All-City Big Block Signature Fork

Seatpost Clamp - All-City Signature Brazed-on Seat Collar

Crankset - All-City 612 Track Crank, 165mm, 46t ring

Bottom Bracket - Square Taper, 68x110mm steel cups, sealed bearings

Front Derailleur - N/A

Rear Derailleur - N/A

Cog - All-City standard, 17t

Chain - KMC, silver, 1/8"

Headset - Cane Creek 40 Series

Brakes - Tektro R539

Brake Lever - Tektro FL750

Rotors - N/A

Shifters - N/A

Stem - JD Components, AL6061, 3D forged, 4-bolt stem, 31.8mm, ±7°

Handlebar - JD Components, AL6061, 720mm wide, 20mm rise

Grip/Tape - Velo single lock-on

Seatpost - JD Components, AL6061, 27.2, 12mm Offset

Saddle - All-City Gonzo

Front Hub - JoyTech A565, 32h

Rear Hub - JoyTech A566, 32h

Rims - Alex DH19, 32h, with CNC Brake Track

Tires - Vittoria Zaffiros IV, 700c x 28mm