Models · Mosaic · GT-2

Mosaic GT-2 i45 (2026)

gravel · titanium · sizes 48–62 Manufacturer’s website

Geometry ?

Mosaic GT-2 i45 2026 geometry in sizes 48–62: stack 544–652 mm, reach 361–398 mm, head angle 70.5–71.5°.

	48	50	52	54	55	56	58	60	62
Stack	544 mm	558 mm	579 mm	586 mm	591 mm	600 mm	615 mm	634 mm	652 mm
Reach	361 mm	367 mm	367 mm	371 mm	378 mm	386 mm	391 mm	395 mm	398 mm
Head angle	70.5°	70.5°	71°	71.5°	71.5°	71.5°	71.5°	71.5°	71.5°
Seat angle	74.5°	74.5°	74°	73.5°	73.5°	73°	73°	72.5°	72.5°
Seat tube (c-t)	480 mm	500 mm	520 mm	540 mm	550 mm	560 mm	580 mm	600 mm	620 mm
Head tube	110 mm	125 mm	145 mm	150 mm	155 mm	165 mm	180 mm	200 mm	220 mm
Top tube (effective)	515 mm	525 mm	535 mm	545 mm	555 mm	565 mm	580 mm	595 mm	605 mm
BB drop	75 mm	75 mm	75 mm	75 mm	75 mm	75 mm	75 mm	75 mm	75 mm
Chainstay	435 mm	435 mm	435 mm	435 mm	435 mm	435 mm	435 mm	435 mm	440 mm
Wheelbase	1004 mm	1015 mm	1017 mm	1022 mm	1032 mm	1042 mm	1053 mm	1063 mm	1078 mm
Fork offset	50 mm	50 mm	50 mm	50 mm	50 mm	50 mm	50 mm	50 mm	50 mm

Source: mosaiccycles.com, checked 13 Nov 2026 · bar position: worked out from published data

Manufacturer’s data sheet (PDF)

Stock build

I don’t have the build for each size yet.

Frames with similar geometry

Stack and reach within 12 mm of size 55 (stack 591 / reach 378 mm).

Fairlight Faran 3.0 (2026)size 54T · stack 590 / reach 378 mm Fairlight Secan 3.0 (2026)size 54T · stack 590 / reach 378 mm Hongfu FM238 (2026)size L · stack 590 / reach 378 mm Maxbike Gravel CRB (Grafen / Topaz) (2025)size L · stack 591 / reach 379 mm Hard Rocx GT1 / GT2 (2026)size 56 · stack 591 / reach 379 mm Soma Double Cross Disc (2024)size 54 · stack 592 / reach 379 mm

Spotted a mistake or a missing build? Let me know.

Are you the manufacturer, or do you sell this bike? I’m missing 11 values for this model’s stem and bars. Add them