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Canyon Grail CF SLX 8 AXS vs Polygon Tambora G4: geometry and fit comparison

Matched sizes, stack and reach deltas, and a fit check against your own body instead of guessing from two separate size charts.

2026race geometry
Canyon Grail CF SLX 8 AXS
7 sizes: 2XS, XS, S, M, L, XL, 2XL
Full size guide
2024all-road geometry
Polygon Tambora G4
4 sizes: S, M, L, XL
Full size guide
In one look

The Canyon Grail CF SLX 8 AXS is built as a race geometry frame, the Polygon Tambora G4 as a all-road geometry frame. The Polygon Tambora G4 cockpit runs about 24 mm shorter, a noticeably more compact position. Across matched sizes, the Polygon Tambora G4 stack sits about 11 mm taller than the Canyon Grail CF SLX 8 AXS, which generally means a more upright position before 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.

Switching from a Canyon Grail CF SLX 8 AXS?

Your closest Polygon Tambora G4 size, and what will still feel different about the position.

You ride the Canyon Grail CF SLX 8 AXS inTake the Polygon Tambora G4 inThe position will feel
2XSS23 mm taller · 3 mm shorterDifferent position
XSS12 mm taller · 16 mm shorterDifferent position
SS5 mm lower · 25 mm shorterDifferent position
MM2 mm taller · 30 mm shorterDifferent position
LL9 mm taller · 30 mm shorterDifferent position
XLXL17 mm taller · 23 mm shorterDifferent position

Which one fits you better?

Run the same measurements through both frames. The likely size and the full fit report can differ more than the spec sheets suggest.

Quick size check

What Canyon Grail CF SLX 8 AXS size fits you?

Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.

No account needed for this check. The full report keeps this bike preselected.

Quick size check

What Polygon Tambora G4 size fits you?

Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.

No account needed for this check. The full report keeps this bike preselected.

FAQ

Which has the taller front end: Canyon Grail CF SLX 8 AXS or Polygon Tambora G4?

Across matched sizes, the Polygon Tambora G4 stack sits about 11 mm taller than the Canyon Grail CF SLX 8 AXS, which generally means a more upright position before spacers.

Can the same rider take different sizes on these two bikes?

Yes, and it happens often: frame labels are not standardized. Use the matched-size table for geometry, then run the fit check below with your own measurements for each bike.

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