451 wheels (22") — full-size ride, compact fold

451 mm wheels are about 10% larger than the 406 mm (20") wheels on the Vektron — noticeably faster rolling, more stable at speed, and better over rough surfaces. Tern's key insight: going from 20" to 22" barely changes the folded size, but substantially changes the ride quality.

T-Tuned™ geometry — stable at speed

Tern's proprietary T-Tuned geometry is designed specifically to counter the inherent instability of small-wheeled bikes at higher speeds — longer wheelbase, optimised trail, and a lower centre of gravity. The result is a folder that handles confidently, not nervously.

OCL+ frame joint — exceeds ISO 4210 & EN 15194

The same OCL+ hinge found on the Vektron lineup — single-shaft design, advanced welding, robust gussets. Folds to 44×80×74 cm in under 10 seconds. Compact enough to fit under a desk or in a car boot.

Shimano hydraulic disc brakes

Shimano hydraulic disc brakes front and rear for consistent, powerful all-weather stopping. A meaningful spec at this price point — mechanical disc brakes are common on bikes in this range; the Verge D9 steps up to hydraulic.

Shimano Acera 1×9 Shadow derailleur — 30"–97" range

Shimano Acera Shadow rear derailleur with 11–36T cassette and 53T crankring. 1x simplicity with a wide 30"–97" gear range — enough for urban commuting and real hills, without the complexity of a front derailleur. Shadow profile tucks it away when the bike is folded or bagged.

Syntace VRO adjustable stem

The Syntace VRO lets you position your handlebars for an aggressive stretched position or a more upright comfortable one — without tools. More performance-focused than the Andros stem on the Vektrons, adjusting reach rather than height.

Physis 3D handlepost — stiffest folding handlepost available

3D forged from a single piece of aluminium — no welds, five patented technologies. The same handlepost found on the cargo and Vektron lineup, delivering zero flex and precise handling regardless of how hard you push.

Folding pedals — fold flat for storage and carrying

Alloy folding pedals fold flat when not in use — reduces the folded width and removes the hazard of pedals catching on things when you're carrying or rolling the bike.

Tern Porter saddle — built for carrying

The Porter saddle features Tern's patented GripPad design — a grippy strip along the saddle rail that lets you shoulder-carry the folded bike without it slipping. Practical detail that matters every time you take it on transit.