• Salsa Timberjack 27.5 GX1 bike tan color side view in forest
  • Close-up of a white bicycle frame with 'TIMBERJACK' branding against a blurred natural background.
  • Salsa Timberjack 27.5 GX1 bike tan color head tube area focus
  • Close-up of a wooden bow with a blurred background
  • Whisky Parts Co branding on a tire rim with straw background
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2017 Timberjack 25.5 Plus X1 Tan

2017 Timberjack 25.5 Plus X1 Tan

Archived

This is an archived bike model. Explore the current range of Salsa bikes here.

Warning for Residents of California

⚠️ 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.

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Product Details

Build Kit

  • Frame: Timberjack Aluminum
  • Fork: RockShox Recon SL 120mm 
  • Color: Matte Gray or Matte Khaki
  • Rear Shock: n/a
  • Front Der: n/a
  • Rear Der: SRAM GX1 
  • Cassette: Sun Race 11-42t
  • Chain: KMC X11
  • Crankset: Praxis Cadet 1x, 30t
  • Shifter: SRAM GX1 
  • Brakes & Rotors: SRAM Hydraulic, 180mm, 160mm 
  • Headset: Cane Creek 10
  • Stem: Salsa Guide
  • Handlebar: Salsa Rustler 3
  • Grips: Salsa Backcountry
  • Seatpost: Promax 30.9 x 350mm
  • Saddle: WTB Volt Comp
  • Front Wheel : Formula 32h, Whisky No.5 Trail Rim, 2.0 spokes, brass nipples
  • Rear Wheel: Formula 32h, Whisky No.5 Trail Rim, 2.0 spokes, brass nipples
  • Tires: Schwalbe Rocket Ron Performance, folding, 27 x 3.0", 27 tpi casing
  • Complete Bike Weight: 29 lbs 12 oz for Medium, set up tubeless

Frame Specs

  • Design Wheel/Tire Size: 27.5 x 3.0" max (at 427mm rear center)
  • Alternative Wheel/Tire Size: 29 x 2.6" max (at 437mm rear center)
  • Suspension Fork Length (Travel): 511–541mm (100–130mm)
  • Rigid Fork Length: 483–502mm
  • Fork Offset: 45–51mm
  • Headset-Upper: ZS44
  • Headset-Lower: ZS56
  • Seatpost: 30.9mm
  • Seat Collar: 35.0mm
  • Dropper Compatible (Routing): Yes
  • Front Derailleur Mount: 148mm rear spaced: high direct-mount (29mm offset) via 34.9mm clamp Problem Solvers Bracket (FS1328) / 142mm rear spaced: high direct-mount (26.5mm offset) via 34.9mm clamp Problem Solvers bracket (FS1323)
  • Bottom Bracket: 73mm BSA, threaded
  • Crankset (Max Ring): 1x crankset: 32t max Boost or 30t max / Non-Boost, 2x crankset: 36/24t max / Boost and 36/24t non-Boost
  • Rear Brake (Rotor): 51mm I.S., (160–180mm)
  • Rear Spacing: 148mm; 142/135mm capable w/ Alternator Reduction Plates (FS2360)
  • Rear Axle Size: 12 x 180L, TP = 1.75, TL = 20
  • Derailleur Hanger: QR = FS1312; TA = FS1373; SS = FS1318; SSTA = FS1375; L Rohloff = FS1371; TA Kit = FS1370
  • Rack Mounts: Yes w/ Alternator Rack System
  • Fender Mounts: No
  • Stem Clamp: 28.6mm
  • Crown Race: 40mm
  • Front Brake (Rotor): N/A
  • Front Spacing: N/A

Geometry

Geometry Diagram
Metric XS - 120mm Sus Fork SM - 120mm Sus Fork MD - 120mm Sus Fork LG - 120mm Sus Fork XL - 120mm Sus Fork XS - Rigid Fork SM - Rigid Fork MD - Rigid Fork LG - Rigid Fork XL - Rigid Fork
Top Tube Effective Metric 570 590 610 640 670 567 587 607 637 667.2
Seat Tube Length Metric 355.6 381 431.8 482.6 533.4 355.6 381 431.8 482.6 533.4
Head Tube Length Metric 100 100 110 120 135 100 100 110 120 135
Head Tube Angle 68 68 68 68 68 68.8 68.8 68.8 68.8 68.8
Seat Tube Angle 73.5 73.5 73.5 73.5 73.5 74.4 74.4 74.4 74.4 74.4
BB Drop Metric 58 58 58 58 58 64 64 64 64 64
Chainstay Length Metric 420–437 420–437 420–437 420–437 420–437 420–437 420–437 420–437 420–437 420–437
Fork Length Metric 499 499 499 499 499 483 483 483 483 483
Fork Offset Metric 51 51 51 51 51 45 45 45 45 45
Wheelbase Metric 1083–1099 1103–1119 1124–1140 1155–1171 1186–1202 1071 1091 1112 1143 1174
Stack Metric 598 598 608 617 631 593 593 602 611 625
Reach Metric 394 414 431 459 484 402 422 439 466 492
Standover Metric 694 709 749 786 823 682 699 738 777 814
Rider Height Metric 157cm–168cm 160cm–175cm 173cm–183cm 180cm–191cm 188–UP 157–168cm 160–175cm 173–183cm 180–191cm 188cm–UP
Stem Length 60 60 60 60 60 60 60 60 60 60
Crank Length 170 170 175 175 175 170 170 175 175 175
Handlebar Width 750mm 750mm 780mm 780mm 780mm 750 750 780 780 780
Seatpost Offset Metric 25mm 25mm 25mm 25mm 25mm 25 25 25 25 25

Supportive Documents

Support Document links

Additional Features

Timberjack Geometry

Timberjack uses a longer toptube and shorter stem to put the rider in a confidence-inspiring position for off-road riding. Using the same stem length, offsets, and angles on each frame size, we provide riders across our size range with the same consistent front-end experience. Combining this front end with super-short chainstays, as short as 420mm, makes Timberjack an extremely agile trail bike.

Versatile Build Options

Timberjack offers a variety of canvases for the off-road artist. Build it with 27.5+ or 29er wheels and tires, a 130mm travel suspension fork or our rigid Firestarter fork, or geared or singlespeed with the Alternator dropouts that can change chainstay lengths from 420mm to 437mm long. With multiple dropout plate options, rear spacing of the frame can be 135mm QR, 142mm thru-axle, or Boost-148. Timberjack can easily adapt to whatever flavor of undertaking you’re up for

6066-T6 and 6061 Aluminum Tubeset 

A blend of our proprietary, top-shelf 6066-T6 double and triple-butted aluminum tubing in the main triangle with 6061-T6 aluminum chain and seatstays create a light, responsive, and durable frame that provides great trail feel

Suspension Fork Compatible 

Designed around a 130mm travel (51 mm offset) suspension fork or our Firestarter fork

Rear Wheel & Tire Options

27.5 x 3.0" or 29 x 2.6"

Alternator Dropout Versatility

The Alternator Dropout delivers incredible drivetrain versatility. Run singlespeed or geared, QR or thru-axle, freehub or Rohloff. Set the Alternator Dropouts all the way forward for a shorter wheelbase and quick, nimble handling, or set back for more stability. See our Alternator page for more info.

Rear Rack Friendly

Designed for use with the Salsa Alternator Standard Rack

1x & 2x Drivetrain Compatible

This frame is compatible with both 1x and 2x drivetrain setups. A removable direct mount front derailleur bracket allows for clean 1x build

Full-Length Internal Housing Cable Routing

Full-length housing improves shifting performance in poor conditions and increases use time between maintenance intervals

Multiple Bottle Cages

X-Small and Small accept 2 bottle cages Medium, Large, X-Large accept 3 bottle cages

Dropper Post Compatible

Frame accommodates internal routing for a dropper post

Tapered Headtube

The modern standard for mountain bikes increases front-end frame and fork stiffness without adding significant weight

Replaceable Derailleur Hanger

Extra sold separately

Warranty Information

All Salsa products are warranted against manufacturing defects in materials and workmanship from the date of retail purchase of the product, subject to the limitations detailed below.

Review Warranty Info