SRAM GX XG-1150 Helmets Copper and Brass domes are

Copper and Brass domes are made of Brass

Aluminum body with 8 traction pins

Works up to 110 psi

Cleat Compatibility SPD Pedal Material Alloy Pedals Thread 9/16'' Primary Color Black Spindle Material Cr-Mo

As with all Specialized performance bikes

SRAM GX XG-1150 Helmets Copper and Brass domes areFull Pin technology uses eleven lightweight, stamped steel cogs held together with 123 high strength stainless steel pins SRAMs super wide 10 42 gear range thats a perfect fit for any ride The open design similar to the X Dome cassette aids in mud clearance SRAM Model ID: CS XG 1150 A1 Attributes Cassette Freehub Compatibility XD Cassette Technology X Dome Cassette Weight 394g Cog Details 10 12 14 16 18 21 24 28 32 36 42 Cog Material Steel Aluminum