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GT-1 i45.jpg

Mosaic
GT-1 i45

GT-1 Logo.png

Tested and refined 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.

The GT-1 i45 is completely Made to Order, inclusive of custom geometry and complete choice of the Mosaic Finishwork Program. Artist Series finishwork layouts are also available, including our latest addition the lineup - Scale.

Frameset Features

Tubeset || Rider Specific T3A/2.5V Double Butted Titanium Tubeset

Geometry || Made To Order (Stock geometry also available)

Tire Clearance || 700x45mm

Derailleur Hanger || Choice of UDH or Standard Derailleur Hanger

Chainline || Gravel WIDE w/ 46T Max Chainring

Fork || ENVE Integrated Gravel Fork (53 & 55 Rake)

Headset || ENVE Integrated Headset

Brake Mount || Flat Mount Disc

Brake Routing || Integrated Internal

Shift Routing || Integrated Di2 or eTap

Axle Spacing || 12x100 Front // 12x142 Rear

Bottom Bracket || Threaded BSA 68mm

Seatpost Diameter || 27.2 (30.9, 31.6 Optional)

Front Derailleur Mount || Clamp or braze on

Water Bottle Mounts || Up to 4 (DT, ST, Under DT, Bento)

Finish || Mosaic Finishwork Program

Lead Time || 6-8 weeks

Pricing || $8300 Frameset Module

Mosaic GT-1 i45 Stock Geometry Chart

GT-1 i45 Stock Geometry Chart

Frame Size

48cm

50cm

52cm

54cm

55cm

56cm

58cm

60cm

62cm

Head Tube Angle

70.5 deg

70.5 deg

71 deg

71 deg

71 deg

71 deg

71 deg

71.5 deg

71.5 deg

Seat Tube Angle

74.5 deg

74.5 deg

74 deg

73.5 deg

73.5 deg

73 deg

73 deg

72.5 deg

72.5 deg

ST Length C-T

480mm

500mm

520mm

540mm

550mm

560mm

580mm

590mm

610mm

TT Length eff

515mm

525mm

535mm

545mm

555mm

565mm

580mm

595mm

605mm

HT Length

100mm

115mm

135mm

145mm

150mm

155mm

175mm

195mm

220mm

Chainstay Length

430mm

435mm

435mm

435mm

435mm

435mm

435mm

435mm

440mm

Wheelbase

1006mm

1023mm

1024mm

1030mm

1040mm

1045mm

1061mm

1066mm

1081mm

Standover Height

754mm

773mm

795mm

806mm

813mm

820mm

839mm

851mm

870mm

Trail

69mm

69mm

65mm

65mm

65mm

65mm

65mm

62mm

62mm

Fork Rake

53mm

53mm

53mm

53mm

53mm

53mm

53mm

53mm

53mm

BB Drop

75mm

75mm

75mm

75mm

75mm

75mm

75mm

75mm

75mm

Stack

532mm

546mm

567mm

576mm

581mm

586mm

605mm

626mm

650mm

399mm

397mm

371mm

373mm

365mm

381mm

371mm

385mm

394mm

Reach

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