
Mosaic GT-1 45
The Mosaic GT-1 45 is designed around a 42-45mm tire, a gravel chainline, and optional SRAM UDH dropout, meaning you’ll likely find yourself riding routes a little off the beaten path, 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 made-to-order for the intended rider.
The Mosaic double-butted tubeset makes for 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.

The epitomy of a modern gravel bike utilizing SRAM's latest UDH Transmission drivetrain.

The GT-1 45 sits within the Mosaic G-Series, intended for big tire gravel riding.

Use a Universal Derailleur Hanger (UDH) with any rear derailleur, or, ditch the hanger entirely and mount a SRAM T-Type Transmission directly to the GT-1 45.

The epitomy of a modern gravel bike utilizing SRAM's latest UDH Transmission drivetrain.
Frameset Features
Tubeset || Custom T3A/2.5V Double Butted Titanium Tubeset
Geometry || Custom (Mosaic stock sizes also available)
Tire Clearance || 700x48mm
Dropout/Hanger || Choice of SRAM UDH Dropout or Standard Derailleur Hanger
Chainline || Gravel Chainline (GRX, Force Wide, XPLR)
Fork || ENVE Gravel Fork
Headset || Chris King Inset 7
Brake Mount || Flat Mount Disc
Brake Routing || Internal
Shift Routing || Choice of External Mechanical, Internal Di2, eTap.
Axle Spacing || 12x100 Front // 12x142 Rear
Bottom Bracket || Threaded English 68mm
Seatpost Diameter || 27.2 (30.9, 31.6, & ISM Optional)
Front Derailleur Mount || Clamp or braze on
Water Bottle Mounts || Two - Down tube and seat tube
Finish || Mosaic Raw Finishes or Mosaic Paint Layout
Lead Time || 6 weeks​
Frameset Options
SRAM UDH T-Type Compatibility
Custom Geometry
Internal Brake Routing
Specific Groupset Configuration
ENVE Cockpit (Bar, Stem & Seatpost)
Mosaic Titanium Cockpit (Stem & Seatpost)
Extra H20/Bag Mounts
Pump Peg
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