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So far it’s a solo ride.

Semi-Custom Mosaic GT-2 Titanium Gravel Bike

Semi-Custom Mosaic GT-2 Titanium Gravel Bike

The Semi-Custom Mosaic GT-2 Titanium Gravel Bike

The perfect introduction to the Mosaic handmade titanium experience. Read more


Ready-to-Paint Mosaic GT-2 Titanium Frameset
Above and Beyond Since 2006, we've been creating the world's finest dream bikes with our signature approach to custom builds and customer service. Our Custom Program
AC Everywhere You can find us just over Golden Gate Bridge in California's Marin County. Can’t come to us? We can bring the bike to you. We craft custom bikes for clients all across the U.S. and the world. Contact us
A Premier Partner Questions about your build? Take advantage of our deep knowledge and unbeatable experience as a premier Mosaic partner. Contact us
Semi-Custom Mosaic GT-2 Titanium Gravel Bike
Semi-Custom Mosaic GT-2 Titanium Gravel Bike
Semi-Custom Mosaic GT-2 Titanium Gravel Bike
Semi-Custom Mosaic GT-2 Titanium Gravel Bike


Mosaic's GT-2 is the perfect chassis for the rider looking to ride beyond the road. Trails, singletrack - whatever you ask of it, the GT-2 will answer. And then some.

Mosaic's T3A/2.5V titanium straight gauge tubeset delivers comfort and compliance for long days in the saddle, with confidence-inspiring handling courtesy of a Columbus or ENVE carbon fork, depending on which variant of GT-2 you opt for.

The GT-2 comes in three variants: AR, X or 45. We've listed the differences in the spec list, but as an overall guide, the 45 will give you more tire clearance (the clue is in the name), the X, a 'mountain bike' aesthetic with compatibility for 29 x 2.25 and trail-going groupsets only, and the AR, a classic all-road vibe with space for 38mm tires.

The Mosaic Batch-Built Program

The GT-2 is readily available as part of Mosaic’s Batch Built program. Pick a stock size, select a finish, and your Mosaic will ship within days, ready to build into your dream bike at Above Category. It’s worth noting that for an up-charge, all stock sizes can turn into custom geometry machines, which is an excellent route if you’d like something a little more tailored without stumping for the cost of a GT-1.



Ordering Process

  • GT-2 AR
  • Tubeset || T3A/2.5V Straight Gauge Titanium
  • Fork || Columbus Futura Gravel
  • Headset || Cane Creek 40
  • Brake Mount || Flat Mount Disc
  • Tire Clearance || 38mm 
  • Brake Routing || Internal (External Available upon request)
  • Axle Spacing || 12x100 Front // 12x142mm Rear
  • Bottom Bracket || Threaded English 68mm
  • Seatpost Diameter || 27.2mm
  • Front Derailleur Mount || Clamp On
  • Water Bottle Mounts || Two - Down tube and seat tube
  • Stock Sizing || 48, 50, 52, 54, 55, 56, 58, 60, 62
  • GT-2 X
  • Ergonomics || Drop Bar or Flat Bar
  • Groupset Compatibility || Gravel Group Only (or MTB)
  • Maximum Chainring Size || 42t (w/ gravel chainline crankset)
  • Tire Clearance || 29 x 2.25 
  • Fork || ENVE Adventure Fork
  • Brake Routing || Internal
  • Shift Routing || Internal (Mechanical & Di2) or eTap
  • Front Derailleur Mount || None (1x only)
  • GT-2 45
  • Fork || Columbus Futura Cross +
  • Tire Clearance || 45mm 
  • Chainline || Gravel Chainline (Must use SRAM XPLR, Force Wide or Shimano GRX.
  • Custom Geometry 
  • Mosaic Finishwork Program or Factory Raw Finish
  • ENVE Cockpit (Bar, Stem & Seatpost)
  • Mosaic Titanium Cockpit (Stem & Seatpost)
  • Extra H20/Bag Mounts
  • Pump Peg (GT-2 X only)

Whether you’re already set on a certain make and model of frame, or still have some questions about how to go about your build, drop us a line and we can talk through your options. From the first detail to the final finish, we'll help you dial in the perfect set up for your next dream bike.

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