Models · Mosaic · GT-1

Mosaic GT-1 i55 (2026)

gravel · titanium · sizes 48–62 · tyres up to 55 mm Custom Manufacturer’s website

Geometry ?

Mosaic GT-1 i55 2026 geometry in sizes 48–62: stack 543–660 mm, reach 373–404 mm, head angle 70–71°.

	48	50	52	54	56	58	60	62
Stack	543 mm	559 mm	575 mm	584 mm	594 mm	618 mm	636 mm	660 mm
Reach	373 mm	379 mm	379 mm	381 mm	392 mm	399 mm	402 mm	404 mm
Head angle	70°	71°	71°	71°	71°	71°	71°	71°
Seat angle	73°	73°	73°	72°	72°	72°	71°	71°
Seat tube (c-t)	480 mm	500 mm	520 mm	540 mm	560 mm	580 mm	590 mm	600 mm
Head tube	100 mm	115 mm	130 mm	140 mm	150 mm	175 mm	195 mm	220 mm
Top tube (effective)	520 mm	530 mm	540 mm	550 mm	570 mm	585 mm	600 mm	610 mm
BB drop	80 mm	80 mm	80 mm	80 mm	80 mm	80 mm	80 mm	80 mm
Chainstay	430 mm	430 mm	430 mm	430 mm	430 mm	430 mm	430 mm	430 mm
Wheelbase	1022 mm	1029 mm	1030 mm	1035 mm	1050 mm	1065 mm	1074 mm	1084 mm
Standover	772 mm	790 mm	807 mm	821 mm	836 mm	854 mm	868 mm	882 mm
Fork offset	55 mm	55 mm	55 mm	55 mm	55 mm	55 mm	55 mm	55 mm

Source: mosaiccycles.com, checked 7 Nov 2026 · bar position: worked out from published data

Build

Built to measure. The stem, bars and other parts are chosen to suit the rider, so the bike has no stock build. According to the manufacturer’s website.

Frames with similar geometry

Stack and reach within 12 mm of size 56 (stack 594 / reach 392 mm).

Cannondale SuperX (2025)size 58 · stack 595 / reach 392 mm Condor Bivio (thru-axle) (2026)size 58 · stack 593 / reach 392 mm Condor Bivio Odyssey (2026)size 58 · stack 593 / reach 392 mm Condor Terra Alta (2026)size 58 · stack 593 / reach 392 mm OPEN U.P. 2.0 / U.P.PER 2.0 / U.P. 2.0 Adventure (2026)size L · stack 595 / reach 392 mm Liv Devote Advanced (flip chip in short position) (2027)size L · stack 593 / reach 391 mm

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