Tern BYB P8 2023 Folding Bike

The Eclipse X22 is designed to be the fastest folding bike in the world. With hand-built 26” wheels and race-tuned geometry, it’s a full sized road bike, but it folds down small in 10 seconds. It boasts an Ultegra drivetrain, and—just in time for the UCI’s new regulations—a set of Shimano hydraulic disc brakes. With a stealth black finish, hydroformed fork, red Syntace accents, and perfected engineering, the X22 inaugurates a new chapter in Tern design.

Features:

• Kinetix Pro X 26” wheels with straight-pull Sapim spokes for a blazingly fast ride
• Shimano Ultegra / 105 drivetrain for 22 speeds and Grand Tour gear inches
• Shimano hydraulic disc brakes for extreme stopping power
• Adjustable VRO handlebar stem to fine tune your ride position
• High performance Kojak road tires with puncture protection
• SR-71 matte finish
• Fold and store indoors for the best theft protection

Technology

OCL™ Frame Joint

The key to any folding bicycle is the frame, and specifically, the folding joint at the heart of the frame. Done well, it locks the two halves of the frame together without any hint of movement or sound. It should be easy to operate and work flawlessly year after year. The OCL Joint does all of these things and is a new reference in folding frame technology.

N-Fold™ Technology

With N-Fold Technology, Tern bikes fold small and fast—in three easy steps. It’s simple enough for anybody to master. And with the handlepost folded to the outside of the package, Tern bikes can also roll when folded for easy transport.

DoubleTruss™ Technology

The rear half of Tern frames use a patented 3D structure we call DoubleTruss to build in extra stiffness. It helps resist torsional forces so our bikes flex less. That means increased stiffness and much better power transfer from the pedals to the rear wheel. The proof’s in the ride.

Tarsus™ Fork

Utilizing a single hydroformed tube mated to a precision-machined steerer, the Tarsus delivers superior strength in a shape that matches the sophisticated lines of the Verge and Eclipse frames.

Physis™ 3D Handlepost

Five patented technologies and unique manufacturing technology add up to the strongest, stiffest folding handlepost available. The Physis uses a special manufacturing process called 3D forging, which forms the post from a single piece of aluminum, eliminating all welds.

Syntace VRO Stem

Your bike should adapt to fit you―not the other way around. This adjustable stem allows you to position your handlebars further, for a more stretched and aggressive riding position, or up higher for increased comfort.

Kinetix™ Pro X Handlebar

At a feathery 160 grams, the Pro X handlebar is one of the lightest aluminum handlebars available. Multi-stage butted from 7050 aluminum and designed specifically for our VRO and Andros handlebar stems.

Stasis Seatpost by Syntace

The Stasis is based on Syntace’s renowned P6 design and is incredibly light, yet durably strong. It is forged from 7075 aluminum and hard-anodized for extra durability. Packed with smart engineering details that make the post easy to use and adjust.

MKS UB-Lite EZY Pedals

The benchmark in quick release pedals, MKS pedals are made in Japan to exacting standards. Ubi pedals are double-sided.

Shimano Hydraulic Disc Brakes

Shimano hydraulic disc brakes deliver powerful stopping power in all weather conditions with the touch of a finger.

Kinetix Pro X Disc Wheels

Kinetix™ Pro X Disc Wheels are engineered from the ground up for speed and performance. With custom-forged bladed Sapim spokes, CNC machined hubs, and high-profile rims, they’re light, strong, and look pretty fine too. Even better, they’re 100% hand-built and hand-trued.

Schwalbe Kojak Tires

Light and fast tires with enough volume to keep things comfy. Kojak’s are ideal for fast commutes or longish weekend rides.

Shimano Ultegra 2 x 11 Drivetrain

Shimano’s updated 11 speed Ultegra group delivers butter smooth shifting

FSA MegaEVO BB386 Crankset

You wouldn’t think something as small as a bottom bracket would make a big difference to your ride experience. But you’d be wrong. The massive aluminum spindle and oversized outboard bearings make this crankset incredibly effective at turning your pedaling into forward momentum.

Magnetix™ 2.0

The Magnetix 2.0 uses powerful magnets to keep your bike folded for situations like carrying your bike up and down stairs. With a pull force 10-15 Kgf, the Magnetix 2.0 will keep your bike folded even when being jostled and moved about.

Luggage Socket™

Fix the Tern Luggage Truss to the Luggage Socket and you can plug in your choice of front luggage: rack, basket, or bag. If it’s KlickFix compatible, it’ll work.

Specifications

Frame and Forks

• Frame: Tern Eclipse, hydroformed 7005-Al with smooth TIG welding, 3 patented technologies
• Forks: Tarsus, 6061-AL, hydroformed
• Headset: Flux Pro, angular contact bearings, Physis integrated

Drivetrain

• Crankset: FSA Gossamer Pro, 50 / 34 Tooth, BB386 oversized aluminum spindle
• Front Derailleur: Shimano 105
• Rear Derailleur: Shimano Ultegra
• Cassette: Shimano 105, 11-28 Tooth, 11 speed
• Chain: Shimano 105, 11 speed
• Bottom Bracket: FSA MegaEVO, BB386

Braking / Shifting

• Shifters: Shimano Ultegra trigger, 2 x 11 speed
• Front Brake: Shimano Deore, hydraulic disc
• Rear Brake: Shimano Deore, hydraulic disc
• Brake Levers: Shimano Deore, hydraulic disc

Wheels

• Front Wheel: Kinetix Pro X Disc, Paired Spoke technology, straight-pull design, 20H, asymmetric flange, 700 g
• Rear Wheel: Kinetix Pro X Disc, Paired Spoke technology, straight-pull design, 20H, asymmetric flange, 820 g
• Spokes: Sapim CX-Sprint, internal Polyax nipples
• Tyres: Schwalbe Kojak, 35-559, foldable, puncture protection, 95 psi

Finishing Kit

• Handlebars: Tern Physis 3D, 3D forged, 5 patented technologies
• Grips: Ergon GX1 Leichtbau
• Stem: Syntace VRO, adjustable
• Seatpost: Stasis by Syntace, 7050-AL, hard-anodized
• Seatpost Clamp: Syntace OverLock
• Saddle: Ergon SMC30 Pro, TiNox Rails