e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray MFPN=2702284 }Wheels Manufacturing Derailleur Hanger -

}Wheels Manufacturing Derailleur Hanger - 587

Color Yellow Defined Color Yellow

The GRX BR-RX820 2-piston disc brake caliper brings a high level of control to gravel cycling with enhanced modulation and a quick initial braking point

}Jagwire Center Lock Disc Brake Rotor Lock Ring for 15-20mm Axles Alloy Black

}Onyx Freehub Driver Assembly - HG11 Alloy

e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray MFPN=2702284 }Wheels Manufacturing Derailleur Hanger -e*thirteen Helix Race Cassette 12 Speed 13 52t Gray. The e*thirteen Helix Race 12 speed 13 52t cassette features close ratio gearing specifically engineered for steep terrain where climbing time and shift frequency is high and descents are gravity driven. By placing more gears where riders spend the majority of the time they can optimize cadence and torque for improved climbing efficiency with smoother shifts under load for both analog and eBikes.