DEMO All-City Big Block Urban Track Bike - 700c, Steel, Night Sky / Smoke, 55cm type_chainrings-bmx-sprockets The six larger cogs are

The six larger cogs are available in two single-piece steel triplets

American-made steel frame construction

The Shimano FC-M6100 12-speed crankset features an optimized gear combination and gear ratios designed for trail riding

Brass spoke nipples available in silver or black

Positive Spring: Air

DEMO All-City Big Block Urban Track Bike - 700c, Steel, Night Sky / Smoke, 55cm type_chainrings-bmx-sprockets The six larger cogs areThe 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