The BYB isn't just a folding bike—it's a whole new way to fold a bike. It's 30% smaller than traditional 20" folding bikes, and folds small and slim enough to fit conveniently into lockers, closets, or any narrow space. Ever tried to ride on public transport with a folding bike and felt like you needed an extra pair of hands? The BYB stands on its rack, and its built-in spinner wheels let you trolley the bike with one hand while the other holds your coffee. No matter how small or fast a bike folds, it needs to be a bike you want to ride. The BYB delivers with a frame engineered for stiffness, larger 20" wheels, and performance components. The BYB is designed for mixed-mode commuters who do a stretch of their daily journey on a train or bus, or might grab a taxi home on a rainy day. Folded, the BYB fits anywhere so all your transport options are always open.
A bike designed for commuting should let you bring your stuff, whether that's a change of clothes, workout gear, or your laptop bag. Add panniers, bags, racks, and baskets from Ortlieb and KlickFix to customize your ride.
- 30% smaller than traditional 20” folding bikes
- Fits conveniently into lockers, closets, or any narrow space
- Metro Transit Rack with built-in spinner wheels for easier trolleying
- Fits riders from 147 to 195 cm (4’10” – 6’5”)
- New TFL Joint with 3D interface, DeadBolt design and SpringLock technology
- New 3D-forged Physis RF Handlepost
- Tern Porter saddle with patented GripPad design
- 8-speed Shimano Acera, Shadow RD derailleur
Colour: Graphite
Wheel Size: 20 inch wheels
Speeds: 8
Weight: 14.3 Kg (31.4 lb)
Folding Time: 30 sec
Folding Size: 35 x 81 x 52 cm (13.8" x 31.9" x 20.5")
Frame Sizes: One size
Gear Inches: 31" - 91" (2.50 - 7.28 m)
Distance: Seatpost to Handlebar: Min: 630 mm (24.8"); Max: 675 mm (26.6")
Distance: Saddle to Pedal: Max: 1045 mm (41.1")
Suggested Rider Height: 147 - 195 cm (4'10" - 6'5")
Max Rider Weight: 105 kg (231 lb)
Frame: Tern BYB, Aluminum, TriFold patented technology, EFBE tested: ISO 4210
Fork: Tern Tarsus, 6061-AL, hydroformed
Handlepost: Tern Physis RF, 3D forged, 5 patented technologies
Stem: Tern Andros (G2), adjustable, forged construction, patented technology
Headset: Flux, cartridge bearings, Physis integrated
Handlebar: Flat bar, 6061-AL, Andros adapted
Grip/Bars Velo ergonomic, lock-on
Saddle: Tern Porter, patented GripPad design
Seatpost: Tern Telescope, 34.9/30.9 mm, 2014-AL
Seatpost Clamp: Oversize, 6061-AL, 2pc
Front Brake: Kinetix SpeedStop V-brakes, stainless hardware
Rear Brake: Kinetix SpeedStop V-brakes, stainless hardware
Brake Levers: Shimano
Cable & Housing: Jagwire, anti-compression housing, Slick Lube liner
Front Hub: Kinetix Neutron Mini 74, sealed cartridge bearing
Rear Hub: Novatec, sealed cartridge bearing
Spokes and Nipples: Stainless steel
Rims: Doublewall aluminum
Tyres: Schwalbe Citizen, 42-406, puncture protection, Reflex
Shifter(s): Shimano, 1 x 8 spd
Front Derailleur: N/A
Rear Derailleur: Shimano Acera, Shadow RD
Crankset: Forged 6061-AL, 52T
Cassette/Freewheel: Shimano 11-32T, 8 spd
Bottom Bracket: FSA, Cartridge, sealed bearings
Chain: KMC, 8 spd
Pedals MKS
Shifter Cable & Housing: Jagwire LEX-SL, slick treatment, alloy ferrules