Colin Strickland’s 2018 Gravel Worlds Pinarello GAN GR Disk Gravel Bike. © Z. Schuster / Cyclocross Magazine

The GAN GR Disk has 12mm thru-axles and flat mount calipers. Colin Strickland’s 2018 Gravel Worlds Pinarello GAN GR Disk Gravel Bike. © Z. Schuster / Cyclocross Magazine undefined