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The all-carbon front fork has 12mm thru-axles and flat mount disc brakes. Trek Boone RSL Cyclocross Frameset and Bike. © Z. Schuster / Cyclocross Magazine

The all-carbon front fork has 12mm thru-axles and flat mount disc brakes. Trek Boone RSL Cyclocross Frameset and Bike. © Z. Schuster / Cyclocross Magazine