Sour Purple Haze (2026)

gravel · steel · sizes XS–XXL · tyres up to 55 mm Manufacturer’s website

Geometry ?

Sour Purple Haze 2026 geometry in sizes XS–XXL: stack 566.3–647.5 mm, reach 375–397 mm, head angle 70.5–71.5°.

	XS	S	M	L	XL	XXL
Stack	566.3 mm	574.6 mm	583.9 mm	602.1 mm	628.5 mm	647.5 mm
Reach	375 mm	380 mm	385 mm	390 mm	393.8 mm	397 mm
Head angle	70.5°	70.5°	70.5°	71.5°	71.5°	71.5°
Seat angle	75°	74.5°	74°	73.5°	73°	72.5°
Seat tube (?)	430 mm	480 mm	510 mm	540 mm	570 mm	590 mm
Head tube	120 mm	135 mm	145 mm	160 mm	190 mm	210 mm
Top tube (effective)	525 mm	535 mm	552 mm	568 mm	583 mm	602 mm
BB drop	72 mm	72 mm	72 mm	72 mm	70 mm	70 mm
Chainstay	440 mm	440 mm	440 mm	440 mm	440 mm	440 mm
Wheelbase	1036 mm	1044 mm	1048 mm	1052 mm	1059 mm	1072 mm
Fork length	403 mm	403 mm	403 mm	403 mm	403 mm	403 mm
Fork offset	45 mm	45 mm	45 mm	45 mm	45 mm	45 mm
Stock build by size
Cranks	172.5 mm	172.5 mm	172.5 mm	172.5 mm	172.5 mm	172.5 mm
Stem	70 mm	90 mm	100 mm	100 mm	110 mm	110 mm
Bar width	400 mm	400 mm	420 mm	420 mm	440 mm	440 mm

(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).

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

Stock build

Purple Haze Shimano GRX 1x12 Off-Road €3,149

Source: sour.bike, checked 7 Nov 2026

Frames with similar geometry

Stack and reach within 12 mm of size L (stack 602.1 / reach 390 mm).

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

Are you the manufacturer, or do you sell this bike? I’m missing 1 value for this model’s stem and bars. Add them