Extralite Pulley Wheels ExtraBolt 15.2 XX1/X01 hubs Like all the BOYD wheels

Like all the BOYD wheels they are expertly hand built and checked

Blue and Red

preventing frame damage or even having to stop mid-race

Very stiff and reliable wheelset

You only see black and white

Extralite Pulley Wheels ExtraBolt 15.2 XX1/X01 hubs Like all the BOYD wheelsDurable performance An excellent and economical upgrade or replacement to the existing SRAM XX1 derailleur pulleys They are precision CNC'd from special thermoplastic that have excellent stiffness, high hardness rating, structural stability and produce very low amounts of friction. This makes them very quiet, durable and smooth running on any XX1 X01 equipped bike. They feature the unique thick thin teeth design compatible with all SRAM 1x derailleurs