Kogel Aluminium Derailleur Pulley - Pair Seal & Fit:SRAM 10/11 Speed Road Works with most road bikes

Works with most road bikes with split seat stays

68mm / 73mm bottom bracket shells

Stable side knobs provide excellent traction on soft dirt to loose over hard and gravel ballz surfaces

FRC - Freeride Casing 60TPI

Kogel Aluminium Derailleur Pulley - Pair Seal & Fit:SRAM 10/11 Speed Road Works with most road bikesSpin It's known that your pulley wheels are subject to a lots of spinning. Have really clean or good quality pulleys can reduce drivetrain friction up to 15%. Not only that your bike runs quieter and will shift better. Kogel Ceramic Pulley feature Grade3 Abec 5 ceramic beraings, they offer smoother spinning over typical steel bearings and have an aluminium body for extra durability. There is both a road and mtb cx specific. MTB are have a bit more