Reach: Horizontal distance from the bottom bracket to the top of the head tube. More reach = more stretched-out position. · grid 10 cm
Madone SL Gen 8 (2025) M vs. S3 / S-Series Disc MK3 (2019–2020) 54: 6 mm more reach · 9 mm less stack · 0.6° steeper seat angle · 5 mm longer chainstays
| Measure | S3 / S-Series Disc MK3 (2019–2020) 54 | Madone SL Gen 8 (2025) M |
|---|---|---|
| Frame | ||
| Stackmm | 555 | 546−9 |
| Reachmm | 378 | 384+6 |
| Stack / Reach | 1.47 | 1.42−0.05 |
| Head angle° | 73.0° | 72.9°−0.1° |
| Seat angle° | 73.0° | 73.6°+0.6° |
| Head tubemm | 147 | 136−11 |
| Seat tubemm | – | 476 |
| Top tube (effective)mm | 548 | 545−3 |
| Chainstaymm | 405 | 410+5 |
| Rear centre (horizontal)mm | 399 | 404+5 |
| Wheelbasemm | 973 | 981+8 |
| Front centremm | 579 | 582+3 |
| BB dropmm | 70 | 70±0 |
| BB heightmm | 269 | 269±0 |
| Fork offsetmm | 46 | 45−1 |
| Trailmm | 56 | 58+2 |
| Fork axle-to-crownmm | – | – |
| Cockpit & riding position | ||
| Bar reachmm | 464 | 470+6 |
| Bar stackmm | 612 | 603−9 |
| Saddle – barmm | 675 | 674−1 |
| Saddle-to-bar dropmm | 76 | 87+11 |
italic = calculated · tap a row to pin the measure in the drawing · Δ relative to S3 / S-Series Disc MK3 (2019–2020)