Specialized Stumpjumper ST 29
The Stumpjumper ST replaces the Camber and fills the gap between Specialized’s Epic XC-rig and the Stumpjumper. It shares the same frame with the normal Stumpy but the different shock and rocker link bring the rear-travel down to 120 mm. At the front, the ST features a fork with 130 mm of travel. As a result, the Stumpjumper ST sports a 67.5° head-angle which is 1° steeper than on regular models.
Specialized Stumpjumper ST 29 Geometry
| Size | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 380 mm | 410 mm | 455 mm | 505 mm |
| Top tube | 569 mm | 592 mm | 624 mm | 657 mm |
| Head tube | 95 mm | 95 mm | 125 mm | 140 mm |
| Head angle | 67,5° | 67,5° | 67,5° | 67,5° |
| Seat angle | 75,8° | 75,5° | 75,1° | 74,7° |
| Chainstay | 437 mm | 437 mm | 437 mm | 437 mm |
| BB drop | 39 mm | 39 mm | 39 mm | 39 mm |
| Wheelbase | 1.141 mm | 1.161 mm | 1.192 mm | 1.223 mm |
| Reach | 415 mm | 435 mm | 455 mm | 480 mm |
| Stack | 607 mm | 607 mm | 635 mm | 649 mm |
With the spec of the Stumpjumper ST Specialized made very few compromises – the components are pretty much the same of those on the normal Stumpjumper. In addition, Specialized offers an entry-level model for € 1,999. The S-Works is the lightest version in the ST line-up. It has a FOX FLOAT 34 fork instead of a 36 and a lighter FLOAT DPS rear shock replaces the DPX2 of the standard bike. This makes the S-Works quite a bit lighter than the Expert but on the trail, the two bikes still feel very similar.
Riding the Specialized Stumpjumper ST 29
The steeper seat-angle (74.7° in XL to 75.8° in S) makes for a comfortable riding position – the ST climbs like a mountain goat. With the SAG set at about 25 %, the ST is noticeably firmer, feels more direct than its long-travel antagonist and follows every riding input with clinical precision. The choice of grippy tires proves that even with the ST-version Specialized preferred trail-performance over lightweight. The traditional 2.3″ tires roll better than the burly 2.6″ version but the identical tread and the stable GRID-carcass provide excellent grip.
If you’re not riding exclusively on demanding terrain you should take a closer look at the Stumpjumper ST. The firmer chassis and slimmer tires make the ST significantly nimbler, more agile and more playful than the normal Stumpy. On demanding descents, it actually inspires way more confidence than its short travel would suggest. Only on really demanding trails the ST surrenders to its long-travel sibling.
