Models · Chumba

Chumba SOCO (2026)

allroad · titanium · sizes 50–62 You choose the cockpit Manufacturer’s website

Geometry ?

Chumba SOCO 2026 geometry in sizes 50–62: stack 528–643 mm, reach 370–427 mm, head angle 72–73.5°.

	50	52	54	56	58	60	62
Stack	528 mm	558 mm	569 mm	585 mm	604 mm	624 mm	643 mm
Reach	370 mm	374 mm	381 mm	391 mm	404 mm	418 mm	427 mm
Head angle	72°	72.5°	73°	73°	73°	73°	73.5°
Seat angle	74.5°	74.5°	74°	73.5°	73.5°	73.5°	73.5°
Head tube	100 mm	130 mm	140 mm	160 mm	180 mm	200 mm	220 mm
Top tube (effective)	518 mm	530 mm	545 mm	565 mm	583 mm	603 mm	618 mm
BB drop	75 mm	75 mm	75 mm	72 mm	72 mm	72 mm	70 mm
Fork length	382 mm	382 mm	382 mm	382 mm	382 mm	382 mm	382 mm
Fork offset	47 mm	47 mm	47 mm	47 mm	47 mm	47 mm	47 mm

Source: chumbausa.com, checked 13 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 56 (stack 585 / reach 391 mm).

Stayer Groadinger UG (2026)size L · stack 585 / reach 391 mm Bianchi Arcadex (carbon) (2026)size MD · stack 584 / reach 391 mm Eddy Merckx Corsa Pévèle Ti (2026)size M · stack 586 / reach 391 mm Voodoo Limba (2026)size L · stack 586 / reach 392 mm X-LAB GT8 (2026)size L · stack 584 / reach 392 mm Mosaic GT-1 i55 32" (2026)size 54 · stack 584 / reach 390 mm

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