Just released, the new Sonder Signal ST takes their aggressive 29er hardtail platform and builds it around a 4130 Chromoly Steel frame for fast, flowy, aggressive riding. Find photos, build options, and specs here…

Previously only available in titanium, the new Sonder Signal ST sees a fresh new 4130 Chromoly Steel frame as well as three new build kits ranging from $1,605 to $2,810 USD. Although the Signal ST isn’t outfitted with additional bosses or rack mounts, it looks like a fun bike for those on the hunt for a nearly indestructible hardtail for exploring mountain passes and singletrack exploration. The Signal ST is designed for 29″ wheels, with clearance for up to 29 x 2.6″ tires, uses BOOST hub spacing, a 73mm threaded bottom bracket, external cable routing, and internal dropping post routing. The frame is optimized for 130mm travel forks and Sonder claims the 66° head tube and 74° seat tube angle “give you the confidence to bomb the descents and while still being able to climb like a mountain goat.”

Sonder Signal ST Steel
  • Sonder Signal ST Steel
  • Sonder Signal ST Steel

The Sonder Signal ST is available in three different complete builds, based around SX, NX, and GX Eagle drivetrains with varying levels of components to offer three different price points. See the complete build kit for the mid-level Sonder Signal ST NX Eagle build below.

Sonder Signal ST NX Eagle Build Kit

  • Frame Signal Steel Frame
  • Fork Rockshox Revelation RC / 29 / 130mm
  • Crankset SRAM NX Eagle Crankset DUB, 32T
  • Cassette SRAM PG1230 Cassette, 11-50T
  • Rear Derailleur SRAM NX Eagle, 12-speed
  • Shifter SRAM NX Eagle
  • Chain SRAM NX Eagle
  • Brakes SRAM Guide T
  • Rotors Avid Centreline, 180/160mm
  • Shifter SRAM NX Eagle
  • Seatpost X-Fusion Manic Dropper Post
  • Wheels Sonder Nova 29 Wheelset
  • Front Tire WTB Vigilante 29×2.5″
  • Rear Tire WTB Trail Boss 29×2.4″
  • Handlebar Sonder Aspect Riser
  • Grips Love Mud Clutch
  • Saddle Sonder Abode
  • Stem Love Mud Piskie, 31.8mm / 35mm
  • Bottom Bracket SRAM DUB, 73mm
  • Headset FSA Orbit C-40-ACB
  • Sonder Signal ST Steel
  • Sonder Signal ST Steel
  • Sonder Signal ST Steel

The Signal ST NX Eagle build above retails for $2,140 USD, while the more affordable SX Eagle build and high end GX Eagle options retail for $1,605 and $2,810 USD, respectively. There’s also a frame-only option for $668 USD, and all of the builds listed above are available with either copper or gunmetal paint jobs. Check out the launch video from Sonder below:

Learn more at Alpkit.com.



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