Rail 9.8 GX AXS T-Type Gen 4
Trek
Enduro
Rail 9.8 GX AXS T-Type Gen 4 is a carbon electric enduro mountain bike (2024), by Trek, from the Rail lineup. This setup will suit riders who want a more active, performance-leaning off-road feel, with a setup that gives you a sporty, active riding position, and is aimed at more technical trails and rougher terrain. Its strongest points in the MatchBikes metrics are capable suspension support for rougher terrain, balanced, versatile speed for everyday riding, 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. Compare this bike on MatchBikes.com to similar enduro models.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
E-Bike Components
Geometry
| Measurement | 15.5" High | 15.5" Low | 17.5" High | 17.5" Low | 19.5" High | 19.5" Low | 21.5" High | 21.5" Low |
|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.433 mm | 1.454 mm | 1.379 mm | 1.4 mm | 1.31 mm | 1.326 mm | 1.259 mm | 1.277 mm |
| Bottom Bracket Height | 346 mm | 341 mm | 346 mm | 341 mm | 346 mm | 341 mm | 346 mm | 341 mm |
| Front Center | 767 mm | 768 mm | 790 mm | 790 mm | 831 mm | 832 mm | 867 mm | 868 mm |
| Rake | 42 mm | 43 mm | 43 mm | 42 mm | 43 mm | 43 mm | 43 mm | 42 mm |
| Trail | 130 mm | 133 mm | 130 mm | 133 mm | 130 mm | 133 mm | 130 mm | 133 mm |
| Stack | 625 mm | 628 mm | 629 mm | 633 mm | 643 mm | 646 mm | 656 mm | 660 mm |
| Reach | 436 mm | 432 mm | 456 mm | 452 mm | 491 mm | 487 mm | 521 mm | 517 mm |
| Top Tube Length | 579 mm | 580 mm | 600 mm | 601 mm | 638 mm | 639 mm | 671 mm | 673 mm |
| Seat Tube Angle | 77.1 ° | 76.7 ° | 77.1 ° | 76.7 ° | 77.1 ° | 76.7 ° | 77.1 ° | 76.7 ° |
| Seat Tube Length | 410 mm | 410 mm | 420 mm | 420 mm | 450 mm | 450 mm | 500 mm | 500 mm |
| Head Tube Angle | 64.6 ° | 64.2 ° | 64.6 ° | 64.2 ° | 64.6 ° | 64.2 ° | 64.6 ° | 64.2 ° |
| Head Tube Length | 105 mm | 105 mm | 110 mm | 110 mm | 125 mm | 125 mm | 140 mm | 140 mm |
| Chainstay Length | 447 mm | 448 mm | 447 mm | 448 mm | 447 mm | 448 mm | 447 mm | 448 mm |
| Wheelbase | 1213 mm | 1214 mm | 1236 mm | 1236 mm | 1277 mm | 1278 mm | 1313 mm | 1314 mm |
| Bottom Bracket Drop | 27 mm | 33 mm | 27 mm | 33 mm | 27 mm | 33 mm | 27 mm | 33 mm |
| Standover Height | 761 mm | 756 mm | 773 mm | 768 mm | 770 mm | 765 mm | 768 mm | 763 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |




























































