Models · T-Lab

T-Lab X3 (2026)

gravel · titanium · sizes XS–XL · tyres up to 50 mm Manufacturer’s website

Geometry ?

T-Lab X3 2026 geometry in sizes XS–XL: stack 545–623 mm, reach 366–422 mm, head angle 71–71.5°.

	XS	S	M	L	XL
Stack	545 mm	565 mm	585 mm	604 mm	623 mm
Reach	366 mm	377 mm	389 mm	407 mm	422 mm
Head angle	71°	71.2°	71.5°	71.5°	71.5°
Seat angle	73.5°	73.5°	73.5°	73.5°	73.5°
Seat tube (c-t)	470 mm	500 mm	530 mm	560 mm	580 mm
Head tube	120 mm	140 mm	160 mm	180 mm	200 mm
Top tube (effective)	519 mm	536 mm	554 mm	578 mm	598 mm
BB drop	76 mm	76 mm	76 mm	76 mm	76 mm
Chainstay	428 mm	428 mm	428 mm	428 mm	428 mm
Wheelbase	1009 mm	1024 mm	1040 mm	1065 mm	1085 mm
Standover	739 mm	765 mm	793 mm	819 mm	836 mm
Fork length	395 mm	395 mm	395 mm	395 mm	395 mm
Fork offset	50 mm	50 mm	50 mm	50 mm	50 mm

Source: t-lab-bikes.com, checked 12 Nov 2026 · bar position: worked out from published data

Stock build

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

Frames with similar geometry

Stack and reach within 12 mm of size M (stack 585 / reach 389 mm).

Argon 18 Grey Matter (2026)size M · stack 585 / reach 388 mm Bossi Grit (2026)size 56 · stack 586 / reach 388 mm Bossi Grit SS (2026)size 56 · stack 586 / reach 388 mm Curve Big Kev V2 (2026)size SM · stack 584 / reach 388 mm Origine Graxx GTO (2026)size M · stack 585 / reach 387 mm Origine Graxx GTR (2026)size M · stack 585 / reach 387 mm

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

Are you the manufacturer, or do you sell this bike? I’m missing 7 values for this model’s stem and bars. Add them