2026 Salsa Timberjack Eagle 70 Transmission 29 - Black Spruce

Seeking a singletrack and bikepacking hardtail? Timberjack Eagle 70 Transmission is versatile enough to do both. Its aluminum frame is responsive and durable, designed with long, low, and slack geometry that grants confidence steep, techy terrain and preserves pedaling efficiency for riding to backcountry campsites.

Our Alternator dropouts let you adapt to different hub standards and drivetrain setups (including single speed) by swapping dropout plates. Timberjack's bottle and cargo mounts make it easy to stash all the supplies you need for a long day (or more) of trail riding - no hip pack needed.

The RockShox Psylo Silver RC fork delivers 140mm of trail-calming travel to help keep you in control on technical sections. SRAM's Eagle 70 Transmission 12-speed groupset offers a wide gear range and trail-ready durability, while the four-piston DB4 brakes can haul you to a stop in a hurry. Whether you set up Timberjack to be your playful trail hardtail, comfortable bikepacking hardtail, or both, it's up to the task.

Features

On-Bike Storage

• Adventures require gear and riders should get to choose whether they carry it on their bike or on their body

Frame Protection

• Our products are built from experience - we've been there enough to know that a carbon fork can benefit from added protection just as much as the downtube on a suspension bike.

Alternator Dropouts

• Adjusts chainstay length to modify ride traits and tire fit (with adjustable swing plates)
• Tensions chain for single-speed use (with adjustable swing plates)
• Gives riders upgrade options

Frame Specs

• Design Wheel/Tire Sizes Tire Size Range for 622/29" Wheels: 53-66 mm (2.1-2.6")
• Alternate Wheel/Tire Sizes Tire Size Range for 584/27.5" Wheels: 71 mm (2.8")
• Max Tire Outer Diameter 760.5 mm (29.95")
• Suspension Fork Length (Travel) 511-563 mm (100-150 mm travel)
• Rigid Fork Length 483-501 mm
• Fork Offset 42-51 mm
• Rear Spacing 148 mm
• Rear Axle Size M12 x 180L, TP = 1.5, TL = 20
• Rear Brake (Rotor) IS mount (180 mm max)
• Headset - Upper ZS44
• Headset - Lower ZS56
• Seatpost 30.9 mm
• Dropper Post Compatible Yes (internal)
• Seatpost Clamp 35 mm
• Front Derailleur Clamp NOT COMPATIBLE
• Derailluer Hanger Alternator 2.0 with UDH plates
• Bottom Bracket 73 mm BSA
• Crankset (Max Ring) 52 mm Boost chainline 1x only (34t)
• Accessory Mounts Accessory Mounts: Yes, one pair
  Downtube Accessory Mounts: Yes, one pair
  Top Tube Mounts: Yes, compatible with Salsa EXP Series Direct Mount Top Tube Bag
• Bottle Mounts XS = 1, SM-XL = 2
• Front Fender Mounts NOT COMPATIBLE
• Rear Fender Mounts NOT COMPATIBLE

Additional Features

6061-T6 Aluminum Tubing

Timberjack is built from our proprietary, top-shelf 6061-T6 aluminum tubing, which is double- and triple-butted in the main triangle for a light, responsive, and durable frame with great trail feel.

Timberjack Geometry

Our second-generation Timberjack geometry is longer, lower, and slacker for aggressive riding. A 66-degree head tube and long wheelbase make for a stable ride, while a long reach and steep (75-degree) seat tube balance weight distribution for efficient pedaling. Short chainstays (adjustable from 420-437 mm) keep the rear end nimble for responsive handling.

Alternator 2.0 UDH-compatible dropouts

The Alternator 2.0 dropout system on this Timberjack comes equipped with SRAM UDH-compatible, fixed-position dropout plates. Other Alternator 2.0 dropout plates (sold separately) allow for single-speed adjustability and accommodate different hub standards.

On-bike cargo

SM-XL frames have two bottle mounts-including a Three-Pack mount on the downtube-in the main triangle (XS frames have only the Three-Pack mount on the downtube). All sizes feature an accessory mount on the underside of the downtube, plus top tube mounts for our EXP-R Series Trillium Top Tube Bag means room for more ride essentials. Rear rack capability (with Salsa Rack-Lock seatpost collar) opens up possibilities for larger loads.

Full-length internal routing

Full-length internal routing for brake lines and shift cable housing means more reliable performance in sloppy conditions, simplified maintenance, and a better fit for frame bags.

Wheel and tire options

Timberjack is compatible with both 27.5 x 2.8" and 29 x 2.1-2.6" wheel and tire combinations.

Click for Geometrical Chart

Click for Build Kit

Click for Timberjack Size Chart (PDF)

Click for Bicycle Owner's Manual

Click for ASTM 3 Framesheet

Click for Alternator Dropout Instructions

Click for Salsa Timberjack V2 Front Triangle Frame Bag Guide

Click for ASTM Riding Conditions Classifications

?? WARNING:

This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.