Mosaic GT-1 45

The Mosaic GT-1 45 is designed around 45mm tires, meaning you’ll likely find yourself riding routes you never thought possible on a “road bike”, and trust us, that’s where the most fun is to be had! Custom geometry is drawn up based on bike fit information provided by you and your Mosaic dealer, making every GT-1 unique and purpose built for the intended rider.

Internally butted tubes deliver a lightweight and exceptionally strong frameset that can be tuned and built to address your specific needs. Larger diameter internally butted tubes are both lightweight and incredibly strong, characteristics that define what a gravel bike should be. Some smaller, perhaps less visible details included on the GT-1 include internal Di2 routing, and tube-in-tube internal brake routing that sits completely flush at it's entry and exit point, eliminating any cable rattle.


Mosaic GT-1 45
Mosaic GT-1 45

Mosaic GT-1 45
Mosaic GT-1 45

Mosaic GT-1 45
Mosaic GT-1 45

Mosaic GT-1 45
Mosaic GT-1 45


Frameset Features




Brake Mount

Brake Routing

Rear Spacing

Bottom Bracket

Seatpost Diameter

Front Derailleur Mount

Water Bottle Mount

Tire Clearance



Lead Time

Custom T3A/2.5V Double Butted Titanium

ENVE G-Series Gravel Fork

Chris King Inset 7

Flat Mount Disc

Internal Tube in Tube (External optional)

12x142mm Thru Axle

Threaded English 68mm

27.2mm (30.9, 31.6 optional)

Clamp-On or Braze On

Two - Down tube and seat tube


Painted or Premium Raw Finishes

Custom Geometry

8 weeks

Frameset Options

Custom Geometry 

Mosaic Paint Layouts or Raw Finishes

Internal Brake Routing 

Specific Groupset Configuration

ENVE Cockpit (Bar, Stem & Seatpost)

Mosaic Titanium Cockpit (Stem & Seatpost)

Extra H20/Bag Mounts

Pump Peg

Stock Geometry