Geometry ?
Pells Aeron 2025 geometry in sizes S–XL: stack 554–618 mm, reach 372–397 mm, head angle 73°.
| S | M | L | XL | |
|---|---|---|---|---|
| Stack | 554 mm | 569 mm | 589 mm | 618 mm |
| Reach | 372 mm | 385 mm | 391 mm | 397 mm |
| Head angle | 73° | 73° | 73° | 73° |
| Seat angle | 74° | 74° | 74° | 74° |
| Seat tube (?) | 480 mm | 520 mm | 550 mm | 580 mm |
| Head tube | 127 mm | 160 mm | 185 mm | 215 mm |
| Top tube (effective) | 535 mm | 550 mm | 568 mm | 584 mm |
| BB drop | 70 mm | 70 mm | 70 mm | 70 mm |
| Chainstay | 415 mm | 415 mm | 415 mm | 415 mm |
| Wheelbase | 979 mm | 995 mm | 1013 mm | 1031 mm |
| Stock build by size | ||||
| Cranks | 170 mm | – | 175 mm | 175 mm |
| Stem | 90 mm | 100 mm | 100 mm | 110 mm |
| Stem angle | −7° | −7° | −7° | −7° |
| Bar width | 400 mm | 420 mm | 440 mm | 440 mm |
(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).
Source: pells.eu, checked 1 Nov 2026 · bar position: worked out from published data
Corrected values: stack
XL stack 654 → 618 mm. Pells’ geometry table gives 654 mm for XL. A head tube 30 mm longer than on L gives about 618 mm. Corrections
Stock build
Aeron 2
- Groupset
- Shimano Tiagra 4700 2×10, hydraulic BR-4770
- Shifters
- Shimano Tiagra ST-4700
- Cranks
- Shimano
- Stem
- PELLS 3D Forged Alloy 7°
- Handlebar
- PELLS DB Alloy, flare 6°, reach 70
- Saddle
- Selle Italia Model X
Source: pells.eu, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size S (stack 554 / reach 372 mm).
Stack and reach within 12 mm of size M (stack 569 / reach 385 mm).
Stack and reach within 12 mm of size L (stack 589 / reach 391 mm).
Stack and reach within 12 mm of size XL (stack 618 / reach 397 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 1 value for this model’s stem and bars. Add them