Fully integrated. Utterly Refined. Totally Gravel.

Tested and perfected on the toughest gravel courses from the red dirt roads of Oklahoma to the 2023 UCI Gravel World Championships in Veneto, Italy, the GT-1 i45 delivers a modern, responsive, confident, and comfortable platform to build your dream gravel bike upon. It's the GT-1 45 you know and love, updated with an ENVE Integrated Gravel Fork & Cockpit making for a sleek made-to-order build.

Every GT-1 i45 starts life with the selection of a rider-specific double-butted titanium tubeset. Based on individual rider fit data provided by the dealer, each GT-1 i45 is then fine-tuned to match each rider's specific fit requirements, handling preferences, and riding aspirations perfectly, the way only a Made-To-Order Mosaic can.

Highlights

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Exquisitely detailed down to the head tube badge.
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Fully integrated cockpit & cables.
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Clean lines. Zero compromise.
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Designed to be used with a gravel chainline groupset.

Features

  • Custom 3A/2.5V Double Butted Titanium Tubeset
  • Rider Specific Geometry
  • 700x45mm Tire Clearance
  • ENVE In-Route Gravel Fork & Headset
  • 44mm Headtube
  • 68mm BSA Bottom Bracket
  • 27.2 Seatpost Diameter
  • Clamp-On Front Derailleur Mount
  • Flat Mount Brake Mounts
  • Internal Di2 or Wireless AXS shift routing
  • Choice of Mosaic Painted Finish
  • 12x100 Front // 12x142 Rear
  • ENVE In-Route Integrated Stem & Seatpost
  • Integrated Brake Routing through cockpit & downtube.

Made To Order Lead Time : 8 Weeks

Made to order from scratch including custom geometry, configuration and choice of finishwork.
  • Rack Mounts
  • Fender Mounts
  • Pump Peg
  • Extra H20 Mounts
  • Chain Hanger
  • 30.9 & 31.6 Seatpost Diameters
  • Braze-On Front Derailleur Mount
  • Mosaic Artist Series Finishwork*
  • UDH Dropout
  • Chris King Aeroset*

* options at additional cost.

Contact your Mosaic Dealer for pricing.

Geometry

Rider Specific Geometry

With a fit-first design approach, custom geometry is drawn up based on bike fit information provided by you and your Mosaic Dealer. Taking into account each rider’s aspirations and use case for the bike, we continue to fine-tune the design to culminate in a riding experience and handling that is perfect for each unique frame that we build. Custom geometry is included as standard on our 1-Level bikes, giving us the opportunity to build the perfect bike for each rider 100% of the time.

Your Bike. Your Fit.
Your Geo.

Geometry driven by your body, made to fit your contact points.
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Mosaic Batch Built Geometry

The Mosaic Batch Built program utilizes our proven size run of geometry to deliver a simpler, more standardized offering, available in a shorter timeframe. By building standard geometry frames together in a batch, configured in an intentional and similar way, we’re able to deliver a batch-built frame in 2-3 weeks, while allowing the customer to choose how their bike is finished.

Finishes: Choose your wow factor.

The finish is the first thing we see. And when you’re excited by the sheer look of your Mosaic, it also gets you excited to get out and ride. And that’s what it’s all about. So whether you choose to let the metal be the star of your titanium frame, or opt for a super colorful paint scheme that’s uniquely you, the goal is to come up with a look that’s going to light you up and get you out there. Ready? Let’s make it yours.

Titanium Finishes

Classic, clean and light, this is the choice for those who love the beauty of raw metal, impeccable welds and subtle logos. Choose between Ghost, Shadow, and Mosaic Factory titanium finish options.
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Painted Finishes

Go big. Go loud. Go subtle. Go pure. With multiple Standard and Artist Series layouts to choose from and a nearly infinite number of color combinations, it's easy to make your Mosaic uniquely yours.
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