Canyon Grail CF SLX 8 AXS vs Polygon Tambora G4: which bike is right for you?

Compare ride character, intended rider, geometry, and fit. Add your measurements to see which bike suits you better and which size to choose on each.

Fit verdict: the frame positions differ enough to matter. Compare the geometry below, then use your measurements to identify the safer size and setup.

Compare them for meCompare geometry and sizes

In one look

Canyon Grail CF SLX 8 AXS: race geometry. Polygon Tambora G4: all-road geometry.

  • Across matched sizes, the frame front of Polygon Tambora G4 is about 9 mm higher than Canyon Grail CF SLX 8 AXS. This can support a more upright starting position, while stem and spacers still affect the handlebar.
  • The frame front of Polygon Tambora G4 is about 25 mm shorter. Handlebar position also depends on the stem and spacers.

For the Canyon Grail CF SLX 8 AXS in 2XL there is no Polygon Tambora G4 size with a comparable position: the range simply does not reach there.

The frame standards line up and we hold no sourced weight or performance claim that separates them. What is left to decide is your size and setup on each frame.

  • Price

    Canyon Grail CF SLX 8 AXS is the dearer of the two, going by the cheapest build you can buy of each; Polygon Tambora G4 starts lower.

Subjective findings from independent tests on stock or near-stock builds. Tyres, pressure and size change how a frame feels.

We compare differences at frame and model level. Components, current price, and availability depend on the exact build and seller.

2026 • race geometry
Canyon Grail CF SLX 8 AXS
Full size guide
2024 • all-road geometry
Polygon Tambora G4
Full size guide

Fit and size differences

Geometry can separate these bikes: matched sizes create a meaningfully different position.

Typical difference across matched sizes: frame front height 9 mm, forward length 25 mm.

For a personal answer, the fit-and-size path uses your measurements to show only the relevant frame sizes. The full chart remains available as a reference.

View geometry for every size

How do Canyon Grail CF SLX 8 AXS and Polygon Tambora G4 sizes compare?

See the closest size matches and the differences in stack, reach, and riding position.

Canyon Grail CF SLX 8 AXS
2XS
Stack 545, Reach 372
Polygon Tambora G4
S
Stack 568, Reach 369

Stack: 23 mm taller

Reach: 3 mm shorter

Canyon Grail CF SLX 8 AXS
XS
Stack 556, Reach 385
Polygon Tambora G4
S
Stack 568, Reach 369

Stack: 12 mm taller

Reach: 16 mm shorter

Canyon Grail CF SLX 8 AXS
S
Stack 573, Reach 394
Polygon Tambora G4
S
Stack 568, Reach 369

Stack: 5 mm lower

Reach: 25 mm shorter

Canyon Grail CF SLX 8 AXS
M
Stack 591, Reach 411
Polygon Tambora G4
M
Stack 593, Reach 381

Stack: practically identical

Reach: 30 mm shorter

Canyon Grail CF SLX 8 AXS
L
Stack 613, Reach 427
Polygon Tambora G4
L
Stack 622, Reach 397

Stack: 9 mm taller

Reach: 30 mm shorter

Canyon Grail CF SLX 8 AXS
XL
Stack 633, Reach 435
Polygon Tambora G4
XL
Stack 650, Reach 412

Stack: 17 mm taller

Reach: 23 mm shorter

Canyon Grail CF SLX 8 AXS
2XL
Stack 655, Reach 454
Polygon Tambora G4
XL
Stack 650, Reach 412
Different position

Stack: 5 mm lower

Reach: 42 mm shorter

The same size label can create a different position on each frame. Stack and reach are one part of the decision; the personalized comparison connects them to your body and each bike’s ride character.

FAQ

Can the same rider take different sizes on these two bikes?
Yes. Frame labels are not standardized, so the same rider may need different sizes. This comparison deliberately avoids a generic matched-size answer and hands your measurements to Bike Fit instead.
Which frame has the higher front: Canyon Grail CF SLX 8 AXS or Polygon Tambora G4?
Across matched sizes, the frame front of Polygon Tambora G4 is about 9 mm higher than Canyon Grail CF SLX 8 AXS. This can support a more upright starting position, while stem and spacers still affect the handlebar.

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