Sonder Cortex

Fast and agile, Cortex is a short-travel trail bike. Perfect for all-terrain seriously epic days out. It comes alive on long technical descents with 120mm travel, big wheels and a stiff responsive frame.

Fast and agile, Cortex is a short-travel trail bike. Perfect for all-terrain seriously epic days out. It comes alive on long technical descents with 120mm travel, big wheels and a stiff responsive frame.

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  • Shimano Deore M6100 12-speed groupset
  • RockShox Recon Silver RL fork
  • Sonder Nova 29" UK Made wheelset

€2.249,00 €2.599,00
Buy Now. Be Riding in 10 days.
  • Shimano SLX M7100 12-speed groupset
  • RockShox Revelation RC fork
  • Sonder Nova 29" UK Made wheelset

€2.749,00 €3.199,00
Buy Now. Be Riding in 10 days.
  • Shimano XT M8100 12-speed groupset
  • RockShox Pike Ultimate fork
  • Sonder Alpha 29" UK Made wheelset

€3.349,00 €3.899,00
Buy Now. Be Riding in 10 days.
  • SRAM SX Eagle 12-speed groupset
  • RockShox Recon Silver RL fork
  • Sonder Nova 29" UK Made wheelset

€1.949,00 €2.349,00
Buy Now. Be Riding in 10 days.
  • SRAM NX Eagle 12-speed groupset
  • RockShox Revelation RC fork
  • Sonder Nova 29" UK Made wheelset

€2.549,00 €2.999,00
Buy Now. Be Riding in 10 days.
  • SRAM GX Eagle 12-speed groupset
  • RockShox Pike Ultimate fork
  • Sonder Alpha 29" UK Made wheelset

€3.249,00 €3.849,00
Buy Now. Be Riding in 10 days.
  • SRAM GX Eagle AXS 12-speed groupset
  • RockShox Pike Ultimate fork
  • Sonder Alpha 29" UK Made wheelset

€3.849,00 €4.499,00
Buy Now. Be Riding in 10 days.
Short travel 29er full suspension MTB
  • Trail bike geometry
  • Rockshox Deluxe Select+ shock
  • Horst link suspension design
  • Metric shock standard

€1.599,00 €1.849,00
Buy Now. In stock for same day despatch.
  • Shimano XT M8100 12-speed groupset
  • RockShox Reba RL fork
  • Sonder Alpha 29" UK Made wheelset

€3.099,00 €3.599,00
Buy Now. Deliveries from 29 April.

Sonder Cortex

Fast and agile, Cortex is a short-travel trail bike. Perfect for all-terrain seriously epic days out. It comes alive on long technical descents with 120mm travel, big wheels and a stiff responsive frame.

Short-travel 29er full suspension mountain bike for epic days over mixed terrain


Fast and agile, Cortex is for epic days over mixed terrain. It comes alive on long technical descents. With 120mm travel, big wheels and a stiff responsive frame, making it great fun for the local trails, and also a hot contender for big down-country days.

With bang up to date geometry for 2024, Cortex inspires confidence with a playful character. Stand up and mash on the pedals out of turns, manual sections of trail and pop off tree stumps, rocks and roots. Smash out short and loose technical climbs, flat-out descents and tight techy singletrack sections. The harder you push the bigger you grin.

Cortex frameset is hand-welded from 6061 double-butted aluminium with a tapered ovalised top-tube and large section down-tube for a stiff chassis with just enough compliance to get you out of trouble. 66° head angle, 74.5° seat tube angle, 40 mm bottom bracket drop and a 465 mm reach (size large). Cortex’s dialed-in geometry and 2.6” tyre clearance offers a comfortable and efficient climbing position for big miles and a stable, spirited platform for smashing up descents.



The Features

Up to Date Trail Bike Geometry

Trail bike Agility with Enduro bike stability, the Cortex has a confidence inspiring, stable and forgiving ride.

Metric Shock Standard

Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action.​

Horst link suspension design

The tried and tested Horst link suspension design allows the suspension to stay active when braking.​

Tyre Clearance

​Clearance for up to 29 x 2.6in tyres.

Internal Cable Routing

​Internal routing in the front triangle for clean lines.