Bespoke Meets High-Performance: Introducing the Mosaic GT-1 i45 Gravel Bike

Discover the Mosaic GT-1 i45 gravel bike: A masterpiece of titanium craftsmanship, fully integrated design, and customizable geometry for unparalleled performance.

Bespoke Meets High-Performance: Introducing the Mosaic GT-1 i45 Gravel Bike

Mosaic Cycles, based in Boulder, Colorado, has once again set the bar high for bespoke titanium bicycle manufacturing with the introduction of their GT-1 i45 gravel bike. As the latest addition to their lineup of handcrafted, fully integrated bikes, the GT-1 i45 is a testament to Mosaic's dedication to innovation and craftsmanship. This model builds upon the success of the original GT-1 45, offering the same lively ride feel and stable pedaling platform but with notable enhancements such as greater tire clearance—up to 45mm—to accommodate more rugged terrain, and an integrated front end for a sleeker look and improved aerodynamics.

The GT-1 i45 is specifically designed around the ENVE Integrated Gravel Fork and Cockpit, highlighting its racing heritage and readiness for the gravel season's challenges, beginning with the Mid South event. This bike is not just about speed; it's about creating a personalized riding experience. Mosaic offers the GT-1 i45 with Made-To-Order geometry, ensuring that each bike is tailor-made to fit the rider's specific requirements, from fit to handling preferences and riding goals.


  • Tubeset: Rider-Specific T3A/2.5V Double Butted Titanium Tubeset
  • Geometry: Made To Order (Stock geometry also available)
  • Tire Clearance: 700x45mm
  • Fork: ENVE Integrated Gravel Fork (53 & 55 Rake)
  • Headset: ENVE Integrated Headset
  • Brake Mount: Flat Mount Disc
  • Brake Routing: Integrated Internal
  • Shift Routing: Integrated Di2 or eTap
  • Axle Spacing: 12×100 Front, 12×142 Rear
  • Bottom Bracket: Threaded BSA 68mm
  • Seatpost Diameter: 27.2 (30.9, 31.6 Optional)
  • Water Bottle Mounts: Up to 4 (DT, ST, Under DT, Bento)

For those seeking not just performance but also a unique aesthetic, Mosaic offers the GT-1 i45 as part of its SCALE Artist Series. This latest edition features vibrant, serpentine designs that stand out both on the road and off it. The GT-1 i45, with its blend of bespoke craftsmanship, cutting-edge integration, and artistic flair, starts at $8,300 for the frameset module, which includes the frame, fork, ENVE Integrated Stem, ENVE Seatpost, and ENVE Integrated Headset, with a lead time of 6-8 weeks through a Mosaic Dealer.