Tern Launches Its Smallest Folding Bike Ever

BYB P10 ultra-compact design fits into the smallest of spaces.

Tern BYB P10

May 10, 2023 — Urban transportation specialist Tern today launched the BYB P10, the smallest folding bike it has ever produced. It achieves its compact size through a patented TriFold frame design incorporating two hinges. It measures only 33 x 80 x 50 cm (13.0" x 31.5" x 19.7").

"In folding bike design, the challenge is always to create something that folds usefully small but that you actually want to ride," stated Josh Hon, Tern Team Captain. "There are many bikes out there that fold, but are cumbersome and hard to move. And in other cases, there are bikes that use small wheels to fold really small, but the ride quality is so compromised that you don't want to ride them for any significant distance. The BYB gets the mix right with larger 20" wheels and an incredibly stiff frame that shrinks to a tiny size in a few easy steps."

Bring Your Bike

When folded, the BYB is 30% smaller than typical folding bikes using 20" wheels, and easily fits in closets, lockers, or other narrow spaces. It is ideal for mixed-mode commuters who need to bring their bike onto trains or buses, or for riders who want to bring their bike on their next trip—whether in the car trunk or as checked-in luggage.

Tern BYB P10 folding bike
BYB P10: Bring Your Bike

Unfold the small and slim package, and the BYB is rock solid, with a stiff DoubleDeck frame and secure locking hinges. The ride is smooth and surprisingly comfortable with an Andros stem that adjusts in seconds to fit the rider's preferred position. The adjustability of the BYB also means the bike can easily be shared: it fits riders of between 147 and 195 cm (4’10” – 6’5”).

The new BYB P10 shares all the benefits of the BYB lineup, while trading in commuter-focused features like fenders, rear rack, and chainguard for a sportier ride. The new model is outfitted with a Shimano 1x10 drivetrain and fast-rolling Schwalbe Kojak tires. Weighing in at 11.8 kg (26 lb, without kickstand), the P10 is also 17% lighter than a fully equipped P8 model.



Imagine flying anywhere in the world and being ready for a bike ride 60 seconds after landing in the hotel. The BYB is that bike. A custom suitcase ensures the BYB is well-protected and always easy to travel with.

AirPorter Slim
AirPorter Slim


While the BYB P10 was intentionally designed as a sportier bike, those looking for more carry capacity may still add racks in the front or rear as an after-market option. The slim and sturdy Pack Rack—a frame-mounted rack—carries up to 15 kg (33.1 lb) and even doubles as a comfortable handle for trolleying the BYB.

The Metro Transit Rack holds up to 20 kg (44 lb)—and easily fits two Ortlieb Sport Roller panniers, for example. The rack also enables the P10 to stand up vertically when folded, and it is equipped with smooth spinner wheels that make maneuvering in crowded areas a lot easier.

Pricing & Availability

The BYB P10 starts at $1,699/€1,599 and prices may vary according to the region. Production has already started and bikes will begin to arrive in bike shops in Asia and Europe this summer, with other markets following later this year.

More Information

Visit ternbicycles.com/byb for more.