The serial number is normally located on the rear of the fork crown

Forged Aluminium With Sag Gradients

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this change alone has knocked off over 100g per pair

Materials: Stainless steel and aluminium

Shimano SLX SM-RT66 6 Bolt Disc Brake Rotor - 220mm - 6 Bolt PDP|Colour The serial number is normallyReplacement rotors from the best in the business. Shimano RT 66 rotors offer dependable stopping power at a great price. Who's this item for: Ant rider chasing a great value for money, reliable solid rotor. Mounting standard: Standard 6 Bolt Materials: Stainless steel and aluminum. Brake pad compatibility: You can use either metal (sintered) or resin (organic) brake pads on these rotors. What's in the box: One SM RT66 6 Bolt Rotor with 6 rotor bolts