Salsa Timberjack Geometry & Bikepacking Bag Fit2026
The same page we read this geometry from. We don't hold live pricing or stock for frames, so check both there.
We may earn a commission if you buy through this link, at no extra cost to you.
Salsa Timberjack frame geometry, drawn to scale
Every tube angle and length below is from the published chart, not an illustration. The front triangle area is the number that decides which frame bags fit — and it changes a lot across sizes.
What this frame gives a loaded bike
Chainstay length is the gap between the seat tube and the rear axle, which a rack, panniers and your heels all have to share. Bottom bracket drop is how far the cranks sit below the axles. Both are compared against the median across every current frame we hold.
420mm chainstays, 15mm shorter than the 435mm median across the 65 current frames here. Bottom bracket drop 56.6mm, 13mm less than the 70mm median. Salsa publishes no fork cargo mounts, and the frame publishes up to 2 bottle or accessory positions. A rear rack needs a Rack-Lock seatpost collar, which the price does not include. Widest published tire 71mm on 650b / 27.5in, 66mm on 700c / 29in. It takes a dropper post.
Every figure above is the manufacturer's, computed against the rest of the database. It says what the frame allows, not how it feels — nobody here has ridden it.
What it can carry
Mount provision and clearance, as Salsa publishes it.
Salsa's wording: “29 x 2.1-2.6"; 27.5 x 2.8"; max tire OD 760.5 mm”
Builds
As Salsa lists them. Prices are MSRP at our last check and move around — treat them as a reference point, not a live quote.
| Build | Drivetrain | MSRP |
|---|---|---|
| Timberjack Deore 12 29 | Shimano Deore 12-speed | $1,799 |
| Timberjack SLX 29 | Shimano SLX | $1,899 |
| Timberjack SLX 27.5+ | Shimano SLX | $2,099 |
| Timberjack Eagle 70 Transmission 29 | SRAM Eagle 70 Transmission | $2,199 |
| Timberjack XT 27.5+ | Shimano XT | $2,499 |
| Timberjack XT 29 | Shimano XT | $2,499 |
Geometry
All figures in millimeters except angles. Effective top tube and seat tube are the two that decide frame bag fit.
| Size | Eff. top tube | Seat tube | Standover | Head tube | Stack | Reach | Chainstay | Wheelbase | BB drop | Head angle | Seat angle |
|---|---|---|---|---|---|---|---|---|---|---|---|
| X-Small | 570 | 342.9 | 702.9 | 100 | 599 | 410.7 | 420 | 1120 | 56.6 | 66.4° | 75.1° |
| Small | 594.1 | 370 | 722.6 | 100 | 599 | 433.6 | 420 | 1142.5 | 56.6 | 66.4° | 75.1° |
| Medium | 615.3 | 395 | 742.1 | 105 | 607.4 | 453.6 | 420 | 1164.5 | 56.6 | 66.4° | 75.1° |
| Large | 639 | 432 | 772.1 | 115 | 613.5 | 475.5 | 420 | 1180.5 | 56.6 | 66.4° | 75.1° |
| X-Large | 659.3 | 457.2 | 792.9 | 125 | 625.5 | 492.6 | 420 | 1211.7 | 56.6 | 66.4° | 75.1° |
Bottom bracket height
Roughly 314mm off the ground. Salsa doesn't publish this directly — we derive it from their BB drop and a typical 74.2cm tire diameter, so treat it as indicative rather than exact. It changes with the tire you fit. Lower means more stable and more pedal strikes; higher means the opposite.
Source — Salsa's own geometry chart: https://www.salsacycles.com/products/2026-timberjack-frame — checked 2026-08-16. A dash means the figure isn't published; we leave it blank rather than estimate.
Note: Geometry table is at 420 mm chainstay. Alternator plates allow 420-437 mm chainstay adjustment.
How the Timberjack compares
Against the frames people actually cross-shop it with — both charts held together, on the specs that decide what the bike carries.
Questions people ask about this frame
Answered from what Salsa publish. Where they publish nothing, that is what it says.
Does the Timberjack take fork cargo cages?
Not published. Salsa don't state any fork mount provision for this frame. That isn't the same as it having none, and we won't guess from a photo.
What is the widest tyre the Timberjack takes?
71mm on 650b / 27.5in. Across the wheel sizes Salsa publish: 66mm on 700c / 29in, 71mm on 650b / 27.5in. Those are frame figures, not the fork's — forks are routinely cut for more rubber than the rear triangle.
Will a seat pack work on the Timberjack?
The dropper is the problem, not the pack. This frame publishes dropper routing, and a dropper and a seat pack want the same space — fitting one rules out almost every strap-on seat pack and leaves rail-mounted bags at a fraction of the volume. Run a rack or a saddle-rail bag if you want both.
Which frame bags fit
Every frame bag we track, checked against this frame's published geometry. Pick your size.
Checking 16 frame bags against a 615.3mm effective top tube and 395mm seat tube. 11 fit.
Read these as conservative. This size has a steeply sloping top tube — the seat tube is only 64% of the effective top tube. Bag makers publish a minimum seat tube length assuming a roughly level top tube, so on a frame like this the comparison understates how much room you actually have. The front triangle here is about 1174 cm², which is the number that actually decides what fits. Several bags marked unlikely below will physically fit. Half-frame bags don't depend on seat tube length at all.
Frame bag fit is calculated from Salsa's published geometry, so it's as reliable as their chart. Seat packs and handlebar rolls depend on your exposed seatpost and bar width, which no geometry table lists — the bag finder covers those once you add your own measurements.