2019 Trek Roscoe vs 2020 Salsa Timberjack 29
The XS is the Salsa Timberjack 29 size closest to your 20" kids' Trek Roscoe. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Salsa Timberjack 29
Compared with the Trek Roscoe in 20" kids', the Salsa Timberjack 29 in XS places the top of the head tube 118 mm higher and 101 mm further forward, relative to the bottom bracket.
- Frame stack
- +118 mm
- Higher front end
- Frame reach
- +101 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −2.4°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
We can't draw these frames yet. The Trek Roscoe numbers we have for size 20" kids' are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Roscoe 20" kids' | Salsa Timberjack 29 XS | Difference |
|---|---|---|---|
| Reach | 288 | 389 | +101 mm |
| Stack | 483 | 601 | +118 mm |
| Head tube angle | 70.0° | 67.6 | −2.4° |
| Seat tube angle | not listed | 73.2 | |
| Effective top tube | 445 | 571 | +126 mm |
| Chainstay length | 363 | not listed | |
| Wheelbase | 863 | not listed | |
| BB drop | 35 | 57 | +22 mm |
| BB height | 235 | not listed | |
| Standover | 518 | 704 | +186 mm |
| Seat tube length | 255 | 355.6 | +101 mm |
| Head tube length | 115 | 100 | −15 mm |
| Fork length | not listed | 509 |
Differences are the Salsa Timberjack 29 minus the Trek Roscoe. Full charts: 2019 Trek Roscoe, 2020 Salsa Timberjack 29.
Where each sits in its class
Trek RoscoeSalsa Timberjack 29
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Roscoe20 | Salsa Timberjack 29 |
|---|---|---|
| Frame | Trek Dialed | not listed |
| Fork | Trek Dialed 20 | not listed |
| Shifter | Shimano Acera M310 | not listed |
| Derailleur | Shimano Tourney TX80 | not listed |
| Cassette | Trek SunRun | not listed |
| Chain | KMC Z51 | not listed |
| Tire | Trek Cheng-Shin | not listed |
| Hub | Formula DC20, Formula D22 | not listed |
| Brake | Tektro M280 | not listed |
| Saddle | Trek Dialed 20 | not listed |
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