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Ridley Kanzo A geometryGravel · 2023 · 6 sizes, from XXS to XL

The Ridley Kanzo A is a gravel bike available in 6 sizes, from XXS to XL. Stack ranges from 528 to 636 mm and reach from 374 to 399 mm. Its position sits between racing and endurance. All sizes share 430 mm chainstays.

Stack528–636mm
Reach374–399mm
Head angle70.0–71.5°
Chainstay length430mm

What size Kanzo A do I need?

Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.

Compare on Fitbikefy →
XXSS 528 · R 374
XSS 542 · R 377
SS 559 · R 380
MS 584 · R 386
LS 611 · R 392
XLS 636 · R 399

Enter your stack and reach to see which size fits you best.

Geometry chart by size

Measurements in mm and degrees, as published by Ridley. The ones that matter most for choosing a size are in bold.

SizeXXSXSSMLXL
Stack528542559584611636
Reach374377380386392399
Effective top tube515525540565585600
Head tube length100113133158188213
Head angle70.0°70.5°70.5°71.0°71.0°71.5°
Chainstay length430430430430430430
Wheelbase1,0161,0191,0291,0341,0561,066
BB drop747472727070
Standover754776801829860888
Seat tube (method not stated)450480510540570600
Seat angle (method not stated)75.0°74.7°74.0°73.0°72.5°72.5°

Source: Ridley official website · data from 11 Nov 2026.

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Ridley Kanzo A 2023

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Stack and reach of every size

Higher means a taller front end; further right means a longer reach. The blue dot is your search.

350360370380390400410420480500520540560580600620640660680reach (mm) →↑ stack (mm)XXSXSSMLXL

Character of each size

Compared with other gravel bikes. Further right means more of that quality.

XXS
XS
S
M
L
XL
Positionracing → relaxed
Steeringcalm → quick
Pedallingrearward → forward
Bottom brackethigh → low
Wheelbaselively → planted
Rear endstable → agile

Bikes with similar geometry (size S)

The closest size of other gravel models, by stack and reach.

ModelΔ stackΔ reach
Canyon Grizl AL · XS2027±0 mm±0 mmCompare →
Canyon Grizl CF · XS2027±0 mm±0 mmCompare →
Ridley INVENIO Gravel Alu · S2024±0 mm±0 mmCompare →
BH Gravelx · MD2026+2 mm−3 mmCompare →
Ridley Invenio Gravel Carbon · S2026+4 mm±0 mmCompare →
BH Gravelx R · MD2026−3 mm−3 mmCompare →
Kanzo A or Grizl AL? In size S they have exactly the same stack and reach (559 / 380 mm): the difference is in the frame and build, not the position.

Frequently asked questions

What size Kanzo A do I need?

It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 528/374 mm in size XXS to 636/399 mm in size XL). The size finder on this page shows the closest size and the stem and spacers you would need.

What are the stack and reach of the Kanzo A in size S?

Stack of 559 mm and reach of 380 mm, with an effective top tube of 540 mm and a head angle of 70.5°.

Is the Kanzo A a racing or an endurance bike?

In between. In size S its stack-to-reach ratio is at percentile 55 of gravel bikes: neither very low nor very tall.

Does it have the same geometry as the Grizl AL?

In size S, yes: same stack and reach. If one already fits you, the same size of the other will put you in the same position.