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So far it’s a solo ride.

Gallery: Brennan's Unbound Mosaic GT-1

Derek Yarra |

mosaic GT1 Unbound bike profile

Frame: Mosaic GT-1 45

Cockpit: Enve Aero

Drivetrain: Shimano GRX/Dura-Ace Di2 mix with full CeramicSpeed coated upgrades

Wheels: Enve 4.5 AR with CeramicSpeed coated bearings

Tires: Vittoria Terreno Dry 700x38c

For an in depth rundown on Brennan's Unbound race rig, head to the journal here.