The next generation folding bike is here

Folding bikes haven't fundamentally changed in over 30 years. They have small wheels, tiny hinged frames and less than ideal geometry. They ride poorly, are heavy and awkward to use, but worst of all, they don't actually fold that small.

Small wheels are less stable at speed, have higher rolling resistance, less grip and require higher tire pressure that results in a harsher ride.

The use of hinges contributes to creaky and flexible frames that do not perform as well as conventional bikes, require scheduled maintenance and, in some cases, can fail and lead to accidents.

We set out to change all of that

Three years ago we started working on a vision of the perfect folding bike — a bike that is lightweight, durable, rides and feels like a full-size bike, is safe and easy to use and folds incredibly small.

We were all the qualities of a performance commuter bicycle, it can be ridden hard and fast. It can handle mixed terrain; everything from city streets to gravel paths. Whether you are commuting, touring, training or just taking it easy, Helix performs the way a real bike should. Remarkably, it can transform, in seconds, to an incredibly small size.

It takes a radical departure from conventional bike design. It is unlike any other bicycle in the world.

SMALLER

We were designed from the ground up to be the smallest and most compact folding bike in the world. Helix folds down to the size of its wheels.

23" × 26" × 9.5"

Patent pending side-by-side folding puts the wheels beside the frame and between the cranks — it's the most efficient use of space possible. Other folding bikes have smaller wheels but don't fold as small.

LIGHTER

We were designed to go everywhere, whether it's the subway, the trunk of your car or a suitcase; it will be lifted often, so it must be lightweight.

20 LBS (9.07 kg)

We've obsessed over every detail to make sure Helix is as light as possible without compromising everyday durability.

SAFER

Our patent pending spring-loaded locking mechanisms pass through the fork and steerer tubes to create a safer lock. There is a secondary safety in place. The tube-in-tube design is inherently safe; even if the spring actuator fails, there is a physical tube inside the fork and steerer tube that will keep the bike from unfolding while riding.

Our locks solve three major issues that affect current folding bikes:

• their locks require scheduled maintenance or routine observation to ensure they are working correctly
• they only clamp the joint in one location and, as a result, there is always play from the unclamped sides
• they can fail at the hinge plates due to the combination of play and elevated stresses at the weld joint

Our locks use a spring loader to consistently achieve a high clamping force with the optimal tension and will further tension as play is introduced when riding begins.

Secondly, they distribute the clamping force over a much larger surface area so that there are no stress peaks and are far less likely to catastrophically fail – equal to or even better than a conventional bike.

Finally, they expand in all directions creating a rigid play-free joint in 360 degrees.

In addition to our patent pending locking devices on the steerer and fork, Helix also uses a swingarm style pivot to fold the rear wheel. It is extremely rigid, it can handle forces equal to that of a conventional bike and lends itself well to the stresses of performance riding.

SAFER - Pass-through locking design with secondary safety ensures a worry free ride

MORE RIGID - Spring loaded locking device compensates for wear so Helix always feels solid

ONE-PIECE FRAME - Side-by-side folding allows for a one-piece hinge-free frame that won't flex or creak while pedaling

EASIER TO USE

We designed Helix to be easy to use.

The combination of side-by-side folding and our patent pending helical hinges allow Helix to be folded with ease. Once folded, it can be rolled on its own wheels and has an integrated stand for when you stop. The locking devices use a simple toggle to engage and disengage.

FOLDS IN ANY ORDER - The rear wheel, front wheel and handlebar can be folded in any order

PEDALS WON'T GET IN THE WAY - No need to rotate pedals — Helix's wheels fit right in between them

ROLLS WHEN FOLDED - Helix is easy to carry and even easier to roll

Helix was designed to use the latest advances in bicycle technology. Thru-axles, centerlock rotors, dual piston brake calipers, direct mount chainring, shadow-tech clutched derailleur - they all contribute to an exceptional riding experience.

Every single component was carefully chosen for it's weight, reliability and innovative features. Even the screws and nuts are either stainless steel, aluminum or titanium - nothing has been overlooked.

Helix will be available in 3 specs: single speed, 10 speed derailleur and 11 speed internal gear hub.

Helix's specifications are subject to change. We are optimizing our design and as a result we may change components to meet a certain weight, reliability or spacing requirement. We are committed to the very highest quality components and if we do change, it will be with an equivalent quality component.

Helix will support a range of bicycle accessories such as mud guards, racks, lights and more. 

All specs will include the following:

• Frame, fork and swingarm: 3Al-2.5V CWSR titanium (grade 9)
• Headset: TBA (Internal, press-fit cup)
• Stem: Helix (31.8mm bar diameter, 35mm reach)
• Handlebar: TBA (31.8mm clamp diameter, 580mm width)
• Brake Levers: TBA
• Cables: Internally Routed
• Crankset: SRAM S1000 Direct Mount (GXP, 165mm)
• Chainring: Wolf Tooth Components 42t
• Seatpost: Helix (400mm)
• Saddle: Fabric Scoop Elite Radius (142mm x 282mm)
• Seatclamp: Helix
• Brake Calipers: TRP Spyre
• Brake Rotors: Shimano SLX Front RT66, Rear RT67 (160mm)
• Front Hub: TBA (32h)
• Rims: TBA
• Tires: Kenda Kwest 24" x 1.5" (ETRTO 40-507)
• Maximum Weight Limit: 250 lbs (113 kg)
• Recommended rider height range: 5' - 6'4"
• Folded Dimensions: 23" x 26" x 9.5"

Additionally, the specific drivetrain options are:

Single Speed

• Rear Hub: Shimano Zee M640 135mm x 12mm thru-axle, 32 hole
• Rear Sprocket: 18t (can be replaced with a cassette to change to 9, 10 or 11 speed)
• Chain Tensioner: Shimano Alfine CT-S500L
• Approximate Weight: 20 lbs (9.07 kg)

10 Speed

• Shifter: Shimano Zee M640 Rapid Fire
• Rear Derailleur: Shimano Zee M640 Shadow+ 10 Speed
• Rear Hub: Shimano Zee M640 135mm x 12mm thru-axle, 32 hole
• Cassette: Shimano SLX HG81 10 Speed (11-36t)
• Approximate Weight: 21.1 lbs (9.57 kg)

11 Speed Shimano Alfine

• Rear Hub: Alfine SG-S700-L
• Chain Tensioner: Shimano Alfine CT-S500L
• Approximate Weight: 23.7 lbs (10.75 kg)

Gear Range

Helix will ship with a 42t front chainring. Combined with 165mm crank arms and 24" wheels, this provides the equivalent gear range of a typical performance commuter bicycle.

Sizing and Geometry

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