Trek Checkpoint ALR 3 Gen 3The Checkpoint ALR 3 is an adventure ready aluminum gravel bike built for exploring anywhere. Its modern endurance geometry keeps you comfortable over gravel roads or potholes, while a carbon fork helps cut down the road vibrations. It's spec'd to go anywhere without breaking the bank, with Bontrager Paradigm wheels, clearance for 50 mm tyres,10 speed Shimano CUES 6000 shifting, mechanical disc brakes and loads of mounts for bags and accessories.