CeramicSpeed OSPW Pulley Wheel System Shimano 9000/6800 Series - Alloy Pulley Carbon Cage BLK CheckoutSpec= A7 120mm (2018+) ring type HG+ (anti-chain drop)

ring type HG+ (anti-chain drop) mount Cinch DM 6mm offset teeth 30t oval/round round color black

and advanced skiers

CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Helmet Style Mountain Helmet Style Full Face Maximum Head Circumference 58 Defined Color White

color black size XL

CeramicSpeed OSPW Pulley Wheel System Shimano 9000/6800 Series - Alloy Pulley Carbon Cage BLK CheckoutSpec= A7 120mm (2018+) ring type HG+ (anti-chain drop)The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features two oversized 17 tooth aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Defined Color Black Drivetrain Speeds 10 Fits Brand Shimano Fits Model Dura Ace 7900 7970