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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. With 120mm travel and big wheels, Cortex is for mountain trails and down-country epics.

At a glance

Hand-welded from 6061 double butted aluminium frame for epic days over mixed terrain.

Fast and agile short travel full sus 29er; perfect for mixed terrain and day long epics
Frame: Sonder Cortex 120 mm travel, hand-welded 6061 double butted aluminium
Rockshox Deluxe Select+ / 190x45
Up to date geometry for trail bike agility and enduro bike stability

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 diale

Bike Frames Off Road

Cortex Frameset