top of page
DSC00861-Edit-2.jpg

 Shimano GRX Limited GT-2 45

The GT-2 45 is available now as a complete bike built in Mosaic Batch Built geometry and finished with Shimano's GRX Limited groupset. Frames can be finished to order within the Mosaic Finishwork Program and the complete bike shipped to a Mosaic Dealer for assembly within 1-2 weeks of purchase. 

Like every Mosaic, the GT-2 45 is built by our team of exceptionally skilled craftspeople here in Boulder, CO every step of the way, from design to frame building, welding, and finishing. 
The GT-2 45 is designed around a 45mm tire and a gravel groupset, making it ideally suited for gravel rambles way off the beaten path. Shimano's GRX Limited Groupset has a special edition finish that embraces the beauty of metal, perfectly complimenting the aesthetics of a Mosaic frame.

To order,
please contact a Mosaic Dealer. Complete bikes are available now in very limited quantity.

GRX Limited GT-2 45
GRX Limited GT-2 45

A limited quantity of complete bikes available now.

press to zoom
Finished to order.
Finished to order.

Choose your finish and personalize your cockpit options.

press to zoom
Pedaling position.
Pedaling position.

Achieve the perfect position with a Thomson Elite seatpost in 0mm or 16mm offset, and a WTB Silverado saddle.

press to zoom
GRX Limited GT-2 45
GRX Limited GT-2 45

A limited quantity of complete bikes available now.

press to zoom
1/7

Frameset Features

Tubeset || T3A/2.5V Straight Gauge Titanium

Fork || Colombus Futura Cross +

Headset || Cane Creek 40

Brake Mount || Flat Mount Disc

Brake Routing || Internal 

Axle Spacing || 12x100 Front // 12x142mm Rear

Bottom Bracket || Threaded English 68mm

Seatpost Diameter || 27.2mm

Front Derailleur Mount || Clamp On

Water Bottle Mounts || Three - Down tube, seat tube, under DT.

Tire Clearance || 45mm 

Chainline || Gravel Chainline (Must use SRAM XPLR, Force Wide or Shimano GRX.

Finish Options || Mosaic Finishwork Program

Sizing || 48, 50, 52, 54, 55, 56, 58, 60,

Build Details

Groupset || Shimano GRX Limited 1x Mechanical

Crankset || Shimano GRX Limited 1x11 (170, 172.5)

Rear Derailleur || Shimano GRX Limited 42T Max

Brakes || Shimano GRX Limited Hydraulic Disc

Shifters || Shimano GRX Limited 1x11 Mechanical

Cassette || Shimano CS-M8000 11-42 

Bottom Bracket || Shimano Ultegra 68mm

Stem || Thomson Elite 

Seatpost || Thomson Elite

Handlebar || PRO Discover AL 12 Degree (42,44)

Wheelset || Shimano GRX WH-RX870 Carbon Wheelset 

Tires || WTB Nano 40

Saddle || WTB Silverado

Price || $7900

Other Details

Shimano GRX Limited Groupset

Mosaic Finishwork | $1200

Mosaic Titanium Cockpit (Stem & Seatpost) | $800

Batch Built Geometry

bottom of page