Onyx Aluminum Cog: 3/32" 18t Black CheckoutSpec= Presta Valve Flip levers are easy to

Flip levers are easy to operate and secure the bike

Each divider features large mesh pockets for additional storage and the installation is simple with hook-and-loop straps

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SmartHead DX1 automatically adjusts to fit Presta or Schrader valves without any extra bits adapters or switches

model Tacky Chan Super Gravity E50 size 27

Onyx Aluminum Cog: 3/32" 18t Black CheckoutSpec= Presta Valve Flip levers are easy toOnyx aluminum single speed cogs. Broached splines are made exactly the same for every cog every time. Made in the USA Tooth Count 18 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Aluminum Defined Color Black