Good to know: Configurable build
Configurable build (at least partly: the cockpit or bar width, for example). The stock build below is only one of the options.
Geometry ?
Wilier Jaroon 2027 geometry in sizes XS–XL: stack 548–626 mm, reach 384–417 mm, head angle 70°.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Stack | 548 mm | 567 mm | 587 mm | 606 mm | 626 mm |
| Reach | 384 mm | 392 mm | 401 mm | 409 mm | 417 mm |
| Head angle | 70° | 70° | 70° | 70° | 70° |
| Seat angle | 74° | 74° | 74° | 74° | 74° |
| Seat tube (c-t) | 440 mm | 470 mm | 500 mm | 530 mm | 560 mm |
| Head tube | 100 mm | 125 mm | 150 mm | 175 mm | 200 mm |
| Top tube (effective) | 540 mm | 555 mm | 570 mm | 585 mm | 600 mm |
| Chainstay | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1037 mm | 1054 mm | 1071 mm | 1088 mm | 1104 mm |
Source: wilier.com, checked 1 Nov 2026 · bar position: worked out from published data
Older model years in the archive with the same stack, reach and head angle: 2024–2025. Source: wilier.com
Stock build
Jaroon Shimano GRX 2x12 (E613GKWL)
- Groupset
- Shimano GRX 2×12
- Shifters
- Shimano GRX ST-RX400
- Cranks
- FSA Omega Adventure 46-30T
- Stem
- Promax DA-296
- Handlebar
- Promax HB-3053DB
- Seatpost
- Alloy 27.2
- Saddle
- Ergonomic
Jaroon Shimano GRX 1x12 (E413GRE)
- Groupset
- Shimano GRX 1×12
- Shifters
- Shimano GRX ST-RX6100
- Cranks
- Shimano FC-RX600 40T
- Stem
- Promax DA-296
- Handlebar
- Promax HB-3053DB
- Seatpost
- Alloy 27.2
- Saddle
- Ergonomic
Source for all builds: wilier.com, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size XS (stack 548 / reach 384 mm).
Stack and reach within 12 mm of size S (stack 567 / reach 392 mm).
Stack and reach within 12 mm of size M (stack 587 / reach 401 mm).
Stack and reach within 12 mm of size L (stack 606 / reach 409 mm).
Stack and reach within 12 mm of size XL (stack 626 / reach 417 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 7 values for this model’s stem and bars. Add them