Kogel Aluminium Derailleur Pulley - Pair Seal & Fit:SRAM 10/11 Speed Road BOYD ran a lab test

BOYD ran a lab test with 17Kgf of braking force off and on in 4 second intervals and ran this test for 20hrs

High stability under pressure

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

Internal gear cable routing while the rear brake line is routed externally for quick servicing

FRC - Freeride Casing 60TPI

Kogel Aluminium Derailleur Pulley - Pair Seal & Fit:SRAM 10/11 Speed Road BOYD ran a lab testSpin 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