SRAM Red E1 Aero Cassettes All four of Park's shop-grade

All four of Park's shop-grade screwdrivers in one handy set

5mm rubber layer gives highest level of puncture resistance

Clearly marked Setup Cog for simple and foolproof installation

UMA GT Half Shorts EVO Blackseries deliver freedom without compromise

Material Aluminum/Steel Primary Color Black

SRAM Red E1 Aero Cassettes All four of Park's shop-gradeSingle ring drivetrain simplifies functionality and reduces weight Direct mount aero chainrings for better aerodynamics X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control SRAM Model ID: CR XSNC DM E1 Attributes BCD Direct Mount SRAM 8 Bolt Chainring Comp. SRAM FlatTop Narrow Wide Design Yes Speed 12