Sonder Cortex

Sonder Cortex

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

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Cortex Frameset

With bang up to date geometry, Cortex is confidence inspiring with a playful character. Stand...

Bundle price $1,449.00
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  • Brown

Buy Now. Deliveries from 27 September.

Cortex Deore

Fast and agile short travel full sus 29er mountain bike with Shimano Deore, 1x12 groupset, Rockshox Recon fork and Deluxe rear shock

Bundle price $2,299.00
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  • Brown

Buy Now. Deliveries from 2 December.

Cortex NX Eagle

Fast and agile short travel full sus 29er mountain bike with SRAM NX Eagle, 1x12 groupset, Rockshox Revelation fork and Deluxe rear shock

Bundle price $2,649.00
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  • Brown

Buy Now. Deliveries from 17 January.

Cortex SX Eagle

Fast and agile short travel full sus 29er mountain bike with SRAM SX Eagle, 1x12 groupset, Rockshox Recon fork and Deluxe rear shock

Bundle price $2,199.00
  • Crayon
  • Brown

Buy Now. Deliveries from 17 January.

Cortex GX Eagle

Fast and agile short travel full sus 29er mountain bike with SRAM GX Eagle drivetrain, Rockshox Pike Ultimate fork and Deluxe rear shock

Bundle price $3,149.00
  • Crayon
  • Brown

Buy Now. Deliveries from 6 February.

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, Cortex is confidence inspiring 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.