
The medium high foldable travel trike 20 inch
Your Trusted Travel Companion
Raised Seat, Easy Access and Plenty of Space for Your Bags: Scorpion fx 20
With the comfortable touring tricycle Scorpion fx 20, HP Velotechnik offers an impressively stable folding recumbent trike that has been specially developed for the needs of traveling cyclists.
The seat of the Scorpion fx 20 is positioned far higher and more upright than that of its sporty contemporaries, the Scorpion and Scorpion fs. This gives easy access to the Scorpion fx 20 and offers a decent seating position, a clear view on the road ahead and a panoramic view of the scenery around you. In brief: Enjoy a lot of trike fun the easy way!
The Scorpion fx 20 not only has room for a sturdy luggage rack with an integrated platform above the rear wheel. The higher seat position also creates space for a lowrider rack behind the seat. Its sturdy tubing provides secure support for two more panniers.
In total, you can transport up to 50 kg (110 lbs) of luggage in four large panniers on your folding recumbent trike. Good for the handling stability: Your luggage travels particularly favourably because it is positioned low and close to your body, ensuring a perfect centre of gravity. If you choose the ErgoMesh seat and the matching Side Bag Mounts, you have easy access to another 10 kg of luggage in two handlebar bags next to the seat.
A large variety of drivetrain options to choose from allow you to relax and enjoy the laid-back comfort of the foldable touring tricycle with such a heavy payload even on the steepest hills. On request, we can also equip your Scorpion fx 20 with a powerful electric motor and double battery option for maximum travel range!

Your Space Is Precious?
Scorpion fx 20. Unfolds Pure Riding Pleasure!
Sometimes space is of the essence – as is time. This is what makes it so satisfying when highly intelligent solutions can save you both. A Swiss pocketknife for example. Or our foldable Scorpion fx 20 travel trike.
Amazing space savings. Thanks to HP Velotechnik’s patented, self-locking folding hinge, it is easier than ever to fold up your Scorpion fx 20. In just 60 seconds, the comfortable seat can be removed without using any tools, and the trike’s rear wheel can be folded forward.
Space-saving masterpiece. With a few movements, this luxurious touring trike can be turned into a compact package that can be easily transported by car.
A ratchet strap hidden behind the seat ties together the two halves of the frame to make the bike easy to carry when folded. Another 90 seconds and the front wheels have been removed using one single Allen wrench. The agile speedster will now even fit in the trunk of some of the tiniest cars. Or in your apartment: Don’t let anyone ever tell you again that you don’t have room for any more beautiful trikes!
Fairkehr Nr. 6/2010
Folding dimension for fast folding:
(seat removed, rear wheel folded forward)
100 × 83 × 71 cm (40 x 33 x 27″) front supported
88 × 83 × 96 cm (30 x 33 x 38″) back supported
Dismantled dimensions:
(front wheels removed, right mudguard turned inwards, left mudguard removed) 104 x 83 x 60 cm (41 x 33 x 24″)
Without wheels, fenders, rack:
75 x 74 x 60 cm (29.5 x 29 x 24″)
Top Virtues of the Scorpion fx 20
Sportiness
In this category, weight and seat position play a decisive role, in particular, the so-called bottom bracket elevation:
The higher the bottom bracket compared to the seat, the lower the drag and the higher the power development. A high bottom bracket position is more suitable for sporty, trained people. Also, the chassis is taken into account. A long wheelbase leads to a higher score because of the increased stability at high speeds. Most of our vehicles with a large 26″ rear wheel do have a long wheelbase. As a specialist, the Scorpion fs 26 Enduro receives a model bonus for its excellent off-road capability.
Comfort
Comfortable boarding and disembarking as well as relaxed sitting are taken into the rating as criteria. With a high seat and upright seat angle, you can board your trike comfortably, while lower and more reclined seats give better aerodynamics for a faster trike. Models score points for comfort if you can choose freely between our different recumbent seats. A suspended chassis not only ensures a lot of comfort on the road but also delivers a vital plus in safety.
Travel suitability
Luggage racks for up to four panniers plus a top-load platform bring our designated travel experts to the pole position for your very big tour. If a model can carry particular heavy loads, it gains some extra points. A relaxed sitting position and a lot of ground clearance let you enjoy our touring recumbents when heading for the long journey even in rough terrain.
Everyday strength
An always reliable daily companion is distinguished by a particularly robust design with a clear focus on what is really important for everyday commuting. Simple maneuvering in traffic, at home in the garage or even in your apartment gives extra points. In this area, you benefit from a small turning circle, low weight, and easy handling. Models that compensate for deficits here with very own strengths, such as an excellent commuting vehicle or car replacement, receive a bonus.
Transportability
For HP Velotechnik’s engineers, transportability is an essential matter and therefore separate item in this list. The rating is influenced by factors like whether and how quickly and easily a bike or trike can be folded; how small it can be stowed; whether it can be transported in one part – or even pulled on roller wheels over the tarmac. Two-wheelers receive a bonus compared to trikes due to their immanently smaller dimensions.
Globetrotter with a Panoramic View
Scorpion fx 20. The Comfortable, Foldable Travel Trike.
The streamlined, relaxed seating position on the Scorpion fx 20, just like on any recumbent bike, ensures a fast pace. The seat angle is adjustable from 46-54°. The seat height of 35 cm (14″) was chosen by HP Velotechnik for the Scorpion fx 20 touring trike to be significantly higher than the sportier Scorpion to provide a very good overview in road traffic. The rearward curved frame cross member allows the driver to get close to the seat and get on and off without effort. And even when stopping at traffic lights, the driver no longer has to take his feet off the pedals positioned at the height of 38-46 cm (15-18″) but can accelerate powerfully from the comfortable recumbent seat.
The frame suspension with 8.5 cm (3.5″) travel works unaffected by pedaling forces thanks to HP Velotechnik’s proven No Squat design. The stiff aluminum frame allows a very low weight for tricycles from 16.5 kg (36.5 lbs). The frame and seat are adjustable in length to suit riders from 1.57 m to 2.00 m (5’2″– 6’7″) tall.
Wider is better: The wider the track, the greater the tipping stability and the faster your recumbent trike can corner. A wide track also allows a bigger steering angle for a small turning circle. So that your Scorpion fx 20 still fits easily through doors and gates, HP Velotechnik has developed narrow hubs for a low overall width of just 83 cm (33″). (You want it even wider? The maximum track width and the highest seating position of our Tadpole trikes can be found with the models Scorpion plus 20 and Scorpion plus 26.)
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The Details at a Glance
Your foldable travel trike Scorpion fx 20 has these technical refinements on board as standard.

Ergonomic Handlebars
Comfortably positioned ergo-bars beneath the seat. Your wrists and neck are relieved from strain. HP Velotechnik's steering geometry combines smooth straight-line stability with impressive maneuverability. Maintenance-free, sealed cartridge bearings on the handlebars and self-lubricating rod end bearings on the tie rods. The wheel mounts are positioned in the frame with sturdy, adjustable A-head headsets. The handlebars are adjustable in width and angle.

Robust Folding Hinge
On unfolding the trike, the robust HP Velotechnik folding hinge locks into place automatically. The safety catch can be conveniently operated from above. Stainless steel axle with zero play for precise folding over and over again.

Disc Brakes
With its low center of gravity and long wheelbase, the Scorpion fx 20 can perform very safe braking maneuvers. The standard disc brakes ensure maximum braking power even in bad weather. The front wheels are controlled separately so that you can selectively brake the inner wheel when cornering. Due to HP Velotechnik's sophisticated steering geometry, the steering is not affected by braking or sudden bumps on your trail. On request, we build your trike with mechanically or hydraulically coupled front brakes with one-hand operation and a rear disc brake.

Chain Protection Tubes
Protects your clothes and the chain: The drive train is mostly covered. The unique chain tubes made from durable plastic create minimum friction for a quiet ride. The frame is adjusted to your leg length by shortening or extending the front boom in the main frame.

Easy wheel removal
Easy to transport: HP Velotechnik has developed open wheel mounts that allow the front wheels to be easily detached together with the brake disc by loosening just one bolt (HP Performance hubs are standard on Scorpions).

Suspension
HP Velotechnik’s adjustable suspension provides superior ride comfort on your fast electric bike. The suspension utilizes HP Velotechnik’s tried-and-tested No-Squat suspension concept. It reliably prevents drive forces from affecting the suspension and unpleasant pedal kickback. This enables you to accelerate at all times powerfully. If desired, your Scorpion fx 20 can be equipped with the lightweight air suspension element from RockShox. The spring stiffness can be easily adjusted to the payload using a shock pump. Equipped with adjustable hydraulic rebound damping and a block-able compression stage, it boasts the best response recorded in our tests.
Accessories
Optional Features for True Individuals
Do you have your own notion of your ideal trike technology? Our modular system enables us to build your recumbent tricycle to meet your needs and desires. A whole range of reliable features and components is available for your compact folding recumbent trike, all of which have been specially developed to excel in everyday use Here we show some selected examples; you will find the complete selection in our price lists and catalogs as well as our online configurator.

BodyLink-Seat
The HP Velotechnik seat systems provide an exemplary ergonomic connection at the key interface between the rider and the trike. With the adjustable BodyLinkhard shell seat, the lower seat shell offers excellent side support, while the upper seatback gives enough freedom for you to lean dynamically into the curve when cornering. Waterproof seat pad cushion made of EVA foam or breathable Airflow seat cushion (multi-layer system).

ErgoMesh-Seat
Alternatively, you can mount the airy ErgoMesh mesh seat. It has anatomically-shaped side cushioning for extra support when cornering and a practical zipper pocket in the backrest. Safety plus: Reflective strips on the seat sides. Both seat systems fit the same frame mounts and are thus interchangeable. They can also be removed entirely in 15 seconds a practical feature when it is raining, or you want to put your recumbent bicycle into your car. With the ErgoMesh seat, you get a 3 cm (1.2") higher seat than with the BodyLink seat; with the extra high ErgoMesh HS plus seat, you sit 14 cm (4.2") higher. A higher seating position facilitates boarding and disembarking and improves the overview in traffic, but reduces the tilt stability when cornering at higher speed – please test your desired seat/handlebar combination at your specialist dealer.

Rear Rack
Your luggage will be carried with full suspension. This enables agile driving dynamics and helps to protect your equipment. The stable rack for loads of up to 25 kg (55 lbs) has been optimized to withstand the high lateral forces while riding your trike. It comes with a secondary, lowered level to hang your panniers with a low center of gravity. Low sidebars provide secure support for bags. Well integrated: A protection for your taillight and a flag mount.

Lowrider
A lowrider rack can be mounted additionally on the luggage rack of the Scorpion fx 20. It can be loaded up to 25 kg (55 lbs). Tube diameter is 12 mm (0.5").

Fenders / Mudguards
Functional fenders: The HP Velotechnik trike fenders offer excellent rider protection against spray from the rear and in particular, from the side. HP Velotechnik enlarged the inside facing part to improve the spray protection to the driver, especially when cornering. Elegant mounting hardware located on the inside of the fender with height adjustment. The rounded shape of the fenders with 60 mm / 2.36" width allows the installation of large-volume, comfortable tires up to 50 mm / 2" width.

Parking Brake
As a parking brake, we can install a V-brake on the rear wheel. It is operated by a thumb lever at the handlebar.

Front Boom Quick Adjust
The optional quick frame adjustment with quick-release levers can be used to adapt the bike to different leg lengths quickly. By pushing in the front boom, your Scorpion fx 20 becomes even more compact for transport.

Weather Protection Gear
The Streamer front fairing from HP Velotechnik keeps your feet warm and legs dry. The fairing can be easily removed using the quick-release lever and rolled up for transport.

Electric Power-Assist

Build My Dream Bike Now!
Fast, convenient, and informative: Selecting the components of your foldable touring trike is easy with our online configurator. Choose to your heart’s content from our versatile modular system!
Facts and Figures
Specifications and Technical Data Scorpion fx 20
The outstanding ride of our foldable travel trike is of course based on thoroughly engineered performance technology with precise technical specifications. The detailed figures can be found here in the technical data sheet – from the dimensions to the payload, from the seat height to the appropriate rider size. And of course, we are also happy to show you which colors you can choose for your Scorpion fx 20.
- Seat
- Wheels & Tires
- Vehicle measurements
- Colors
- Miscellaneous
- Warranty
- Wheel size (front wheel): 20″ (ISO 406)
- Wheel size (rear wheel): 20″ (ISO 406)
- Max. tire width: 5 cm (2″)
- Bottom bracket height: 38–46 cm (15″– 18″)
- Ground clearance: 13,5 cm (5.3″ statically compressed)
- Wheelbase: 107 cm (40″)
- Track width: 78 cm (31″)
- Width: 83 cm (33″)
- Length: 165–201 cm (5’6″– 6’7″)
- Turning circle: 4,5 m (14’5″) outward
- Folding size: 100 × 83 × 71 cm (40 x 33 x 27″)
- Dismantled size: 104 × 83 × 60 cm (41 x 33 x 24″)

Standard color: Pearl orange

Standard color: Cool grey metallic
Give your bike a personal touch: On request, you can have the frame of your HP Velotechnik recumbent bike powder-coated with a custom color completely to your personal taste. You can choose from hundreds of color shades:
An overview and further information about our custom colors can be found in our color chart.
- Bottom bracket standard: BSA 68 mm
- Suspension travel at the rear wheel: 8,5 cm (3.3″)
- Weight: from 16,5 kg (36,5 lbs) incl. pedals
- Payload: max. 140 kg (309 lbs)
- Frame material: Aluminum 7005 T6 heat treated
- Swing arm bearing: maintenance-free
- Rider height: ca. 1,57 – 2,00 m (5’2″– 6’7″)
We are committed to the quality of our products. Therefore we grant a guarantee of 10 years on the frame and the swing arm bearing of our bikes and trikes. For further information, please have a look at our warranty conditions.
They Even Have a catalog? This Is Getting Better and Better!
You will find all the details about the Scorpion fx 20 folding recumbent touring trike in our detailed and richly illustrated Scorpion tricycle catalog. Also, you will read lots of background information about tricycles for adults and fascinating reports about trike tours all over the world.
Even now you have the choice with us: Browse here online on our website. Or request your copy in high-quality printing form by post. So you can comfortably recline at home on your sofa and start discovering the world of recumbent bicycles – without obligation and completely free of charge.
Do you want to read more?
They Even Have a catalog? This Is Getting Better and Better!
In our detailed Scorpion tricycle catalog you will read all the details about the folding recumbent tricycle Scorpion fx 20 and exciting adventures of cycling tours by trike all over the world.
Request your copy in a high-quality printing form right away. So you can comfortably recline at home on your sofa and start discovering the world of recumbent bicycles – without obligation and completely free of charge.
FAQ
Scorpion fx 20 Frequently Asked Questions

The characteristics of our trikes depend on many factors. The wheel size is only one. HP Velotechnik optimized the geometry of each model for specific characteristics (with or without full suspension, foldable or not foldable, small rear wheel or large rear wheel, etc.). A conversion in this area would have a negative effect on the overall balanced system and thus on the riding characteristics – therefore our trikes are not intended for such a conversion.
In our concept, the specialist trade is the central sales pillar. Our selected and trained specialist dealers can advise you in detail. Above all, however, they offer a promptly available service locally, which we cannot provide within the framework of our manufactory with some production processes planned for the long term. For these reasons we also do not sell directly to the customer at the factory.
A lot works with a lot – but not everything is compatible with everything. This is obvious with some combinations: a hub gear plus a hub motor in the same rear wheel is not possible. The easiest way to choose your specifications: Enter your whishes in our online configurator – we’ve programmed it with all possible combinations, compatibility, and descriptions on our component choices. For detailed advice on choosing the best option for your desired application, please contact your specialist dealer.
System weight means the weight of rider + luggage + bike (if applicable incl. motor). The payload refers to driver + luggage. In practical terms, this means that if you install an engine in your Scorpion fx, you have to subtract its weight from the possible payload.
You can carry up to 8 bags plus another piece of luggage on the platform above the rear wheel:
On the luggage rack specially designed for the Scorpion fx 20, you can store two standard bags, plus additional luggage on the platform.
With the Lowrider carrier you bring two more panniers to your bike.
If you choose the ErgoMesh or ErgoMesh Premium seat and our matching Side Bag Mounts, you have easy access to another 10 kg of luggage in two handlebar bags next to the seat. Additionally you can mount our Add-on bags on the back of the seat.
Picture Gallery
Here You Can Enjoy the Best Views
You will experience the best reasons for one of our recumbents during an extended test ride. On our website, we can only describe to you the incomparable driving feeling. True to the saying “A picture says more than 1000 words” we want to let our Scorpion fx 20 adult recumbent trike speak for itself.
Move the mouse pointer over the image. Use the magnifying glass symbol to open the picture gallery. Alternatively, you can use the link icon to download photos in high resolution, e.g., as a desktop background – simply right-click after opening the image. You can find more high-resolution pictures in our album about Scorpion fx 20 on Google Photos.
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All Right, Enough Theory, How Do I Get on The Foldable Touring Trike?
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