Madone SLR 9 AXS Gen 8
Trek
Aero
Madone SLR 9 AXS Gen 8 is a carbon aero road bike (2025), by Trek, from the Madone lineup. It suits riders who want a sporty road feel without a full race fit, leaning toward a sporty riding position, and is best matched to paved roads. On MatchBikes metrics, it scores well for a clearly aero-focused setup for faster road riding, strong speed potential on smoother terrain, and strong climbing friendliness for sustained uphill riding. That said, the trade-off to keep in mind is a firmer ride feel than comfort-first options and a value score that depends more on priorities than pure price efficiency. This summary is a starting point—compare this bike on MatchBikes.com with similar bikes.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Seat
Geometry
| Measurement | XS | SM | MD | MD/LG | LG | XL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.37 mm | 1.402 mm | 1.422 mm | 1.445 mm | 1.477 mm | 1.517 mm |
| Bottom Bracket Height | 264 mm | 264 mm | 266 mm | 266 mm | 268 mm | 268 mm |
| Front Center | 572 mm | 577 mm | 581 mm | 580 mm | 589 mm | 604 mm |
| Rake | 50 mm | 45 mm | 45 mm | 40 mm | 40 mm | 41 mm |
| Trail | 61 mm | 62 mm | 58 mm | 59 mm | 57 mm | 57 mm |
| Stack | 507 mm | 530 mm | 546 mm | 562 mm | 582 mm | 610 mm |
| Reach | 370 mm | 378 mm | 384 mm | 389 mm | 394 mm | 402 mm |
| Top Tube Length | 517 mm | 532 mm | 545 mm | 557 mm | 568 mm | 584 mm |
| Seat Tube Angle | 73.8 ° | 73.8 ° | 73.6 ° | 73.4 ° | 73.4 ° | 73.4 ° |
| Seat Tube Length | 404 mm | 440 mm | 476 mm | 512 mm | 548 mm | 609 mm |
| Head Tube Angle | 71.6 ° | 72.2 ° | 72.9 ° | 73.5 ° | 73.8 ° | 73.9 ° |
| Head Tube Length | 100 mm | 121 mm | 136 mm | 150 mm | 172 mm | 201 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm | 411 mm | 412 mm |
| Wheelbase | 971 mm | 976 mm | 981 mm | 980 mm | 990 mm | 1007 mm |
| Bottom Bracket Drop | 72 mm | 72 mm | 70 mm | 70 mm | 68 mm | 68 mm |
| Standover Height | 704 mm | 734 mm | 762 mm | 790 mm | 820 mm | 863 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 155 cm | 163 cm | 170 cm | 175 cm | 181 cm | 188 cm |
| Rider Max Height | 168 cm | 174 cm | 181 cm | 187 cm | 193 cm | 200 cm |




























































