Salsa Cycles | Timberjack Frame 29/27.5 Alloy

Build it for the trail. Load it for anywhere.

The Salsa Timberjack is a versatile aluminum hardtail frame built for aggressive trail riding, bikepacking adventures, and everything in between.

Its progressive trail geometry rewards confident descending while remaining composed and efficient on climbs. Support for 29-inch and 27.5+ wheels, suspension forks from 100 to 150 mm, internal dropper routing, and practical on-bike storage mounts give you the freedom to build anything from a high-end trail machine to a dependable parts-bin adventure bike.

Key Features

• Progressive Trail Geometry
Modern geometry creates a confident and responsive ride on technical descents without sacrificing climbing capability.

• Multiple Wheel Options
Compatible with fast-rolling 29-inch wheels or high-volume 27.5+ tires to suit different terrain and riding styles.

• Wide Fork Compatibility
Supports suspension forks from 100 to 150 mm of travel for everything from efficient adventure builds to aggressive trail setups.

• Adventure-Ready Storage
Frame-mounted storage and bottle provisions keep essential gear low on the bike and off the rider’s back.

Technical Specifications

• Category
Hardtail MTB Frame

• Discipline
MTB

• Construction / Material
Aluminum

• Wheel Compatibility
29 Inches / 27.5+ Inches

• 29-Inch Tire Compatibility
29 x 2.1 to 2.6 Inches

• 27.5-Inch Tire Compatibility
27.5 x 2.8 Inches

• Maximum Tire Outer Diameter
760.5 mm

• Suspension Fork Compatibility
511 to 563 mm Axle-to-Crown / 100 to 150 mm Travel

• Rigid Fork Compatibility
483 to 501 mm Axle-to-Crown

• Fork Offset
42 to 51 mm

• Rear Spacing
12 x 148 mm Boost

• Rear Axle
M12 x 180 mm, 1.5 mm Thread Pitch, 20 mm Thread Length

• Rear Brake Mount
IS Mount / Maximum 180 mm Rotor

• Headset
ZS44 Upper / ZS56 Lower

• Bottom Bracket
73 mm BSA Threaded

• Seatpost Diameter
30.9 mm

• Seatpost Clamp Diameter
35 mm

• Dropper Post Compatibility
Yes, Internal Routing

• Drivetrain Compatibility
1x Only / 52 mm Boost Chainline / Maximum 34T Chainring

• Front Derailleur Compatibility
Not Compatible

• Derailleur Hanger
Alternator 2.0 Swing Plate

• Bottle Mounts
One on Extra Small / Two on Small to Extra Large

Run it as a fast-rolling 29er or a high-volume 27.5+ build, with room for up to 150 mm of suspension travel.