Speed Concept SLR 9 AXS
Trek
Triathlon
Speed Concept SLR 9 AXS is a carbon triathlon road bike (2025), from Trek, part of the Speed Concept family. It is best suited to performance-focused riders who want an aggressive position, with a setup that gives you an aggressive, race-leaning riding position, while being 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 all-round climbing capability rather than a narrow specialty. That said, compared with more specialized alternatives, the compromise is a firmer ride feel than comfort-first options and a value score that depends more on priorities than pure price efficiency. Use MatchBikes.com to compare this bike with nearby triathlon options.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Seat
Geometry
| Measurement | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.262 mm | 1.243 mm | 1.27 mm | 1.27 mm |
| Bottom Bracket Height | 256 mm | 256 mm | 256 mm | 256 mm |
| Front Center | 571 mm | 598 mm | 623 mm | 650 |
| Rake | 41 mm | 37 mm | 44 mm | 45 mm |
| Trail | 61 mm | 60 mm | 60 mm | 60 mm |
| Stack | 492 mm | 517 mm | 541 mm | 565 mm |
| Reach | 390 mm | 416 mm | 426 mm | 445 mm |
| Top Tube Length | 495 mm | 518 mm | 541 mm | 565 mm |
| Seat Tube Angle | 78 ° | 78 ° | 78 ° | 78 ° |
| Seat Tube Length | 499 mm | 525 mm | 549 mm | 574 mm |
| Head Tube Angle | 72.2 ° | 72.5 ° | 72.5 ° | 72.5 ° |
| Head Tube Length | 65 mm | 90 mm | 115 mm | 140 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 967 mm | 995 mm | 1020 mm | 1047 mm |
| Bottom Bracket Drop | 80 mm | 80 mm | 80 mm | 80 mm |
| Standover Height | 760 mm | 785 mm | 808 mm | 831 mm |
| Wheels | 700 | 700 | 700 | 700 |
| Rider Min Height | 154 cm | 166 cm | 174 cm | 185 cm |
| Rider Max Height | 168 cm | 176 cm | 187 cm | 198 cm |




























































