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Cube TWO15 SLX geometryMTB · 2026 · 3 sizes, from M to XL

The Cube TWO15 SLX is a mtb bike available in 3 sizes, from M to XL. Stack ranges from 657 to 657 mm and reach from 445 to 485 mm. Its position sits between racing and endurance. All sizes share 440 mm chainstays.

Stack657–657mm
Reach445–485mm
Head angle63.8–63.8°
Chainstay length440mm
PlantedSteep seat angleCalm steeringStable rear

What size TWO15 SLX 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 →
MS 657 · R 445
LS 657 · R 465
XLS 657 · R 485

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

Geometry chart by size

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

SizeMLXL
Stack657657657
Reach445465485
Effective top tube562582602
Head tube length124124124
Head angle63.8°63.8°63.8°
Chainstay length440440440
Wheelbase1,2571,2771,297
Seat tube (method not stated)400400400
Seat angle (method not stated)78.3°78.3°78.3°

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

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Cube TWO15 SLX 2026

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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.

420430440450460470480490500510620640660680700reach (mm) →↑ stack (mm)MLXL

Character of each size

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

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

Bikes with similar geometry (size L)

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

ModelΔ stackΔ reach
Cube TWO15 · L2026±0 mm±0 mmCompare →
KTM Ultra · XXL2027+4 mm−5 mmCompare →
KTM Chicago · XXL2027+4 mm−5 mmCompare →
KTM Chicago Street · XXL2027+4 mm−5 mmCompare →
KTM Penny Lane · XXL2027+4 mm−5 mmCompare →
KTM Ultra Ride · XXL2027+4 mm−5 mmCompare →
TWO15 SLX or TWO15? In size L they have exactly the same stack and reach (657 / 465 mm): the difference is in the frame and build, not the position.

Frequently asked questions

What size TWO15 SLX 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 657/445 mm in size M to 657/485 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 TWO15 SLX in size L?

Stack of 657 mm and reach of 465 mm, with an effective top tube of 582 mm and a head angle of 63.8°.

Is the TWO15 SLX a racing or an endurance bike?

In between. In size L its stack-to-reach ratio is at percentile 61 of mtb bikes: neither very low nor very tall.

Does it have the same geometry as the TWO15?

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