Extrawheel Bicycle Trailer

In 2006 extrawheel introduced into the market the world's only bicycle trailer with a large wheel, Extrawheel – Classic, which was well received in all continents. Its successor is Voyager – lighter, shorter, stronger and more stable.

Extrawheel trailer is intended for being hauled by any bicycle with a wheel diameter of 26", 27" or 28" and carrying loads with a total weight of up to 30_kg. (The bicycle may additionally be loaded in the traditional way).

A large wheel placed close to the centre of load gravity, record-breaking lightweight performance and the quick and super rigid fastening turned out to be a watershed solution not only where the car remains a luxury. Riding your bike, even with a great load, in the city as well as on narrow lanes, you just forget about the trailer. The cyclist quickly gets used to the somewhat different than usual reactions of the vehicle; even when the luggage is placed asymmetrically. Carrying a smaller load will even cause anxiety to the cyclist; he will look behind to make sure it's still there. Those who may be interested in a quick and reversible conversion of their genuine "mountaineer" or "roadster" into a truck are invited to see for themselves how in practice such a conversion:

• Will amaze them with the stability of the bicycle-trailer set following from lower centre of gravity.
• Will upgrade durability of the bicycle's rear wheel, which often happens to be overloaded.
• Will reduce the tendency of the front wheel(a rising tendency when loading the carrying rack) to lose contact with the ground when riding steeply uphill.
• Will reduce the stopping distance where a load placed high on the bike will make the back wheel lose contact with the ground sooner than when it's pushed at the axle level.
• Will facilitate hikes where it's convenient to carry typical bags or backpacks.
• Will reduce resistance of the bicycle-trailers movement on soft ground by spreading the load over a larger surface and the bikes initial hardening of the track for the trailer wheel following behind.
• Will facilitate getting on and off the bike, which for some people may be quite inconvenient when the space behind the saddle is filled with load.

Advantages of the extrawheel construction

Remarkable stability. A great pile of luggage on the trailer is leaning on curves together with the bike displaying a lightweight performance which is causing general amazement. This is owing to the inconspicuous-looking fastening (fork) which at the same time is unusually rigid. Its arms go right in the middle of the ball-shaped joints and they only transfer longitudinal stress; just like a stick which is hard to break by pressing its ends. That's why they can be so light and thin.

The trailer is also marked by:

• Record-breaking lightweight performance – Extrawheel is the worlds lightest one-wheel bicycle trailer (3,9 kg Voyager, 4.8 kg Classic with a 28-inch average quality wheel)
• Manouverability – retaining the bicycles turning radius (the wheel is not placed behind but between the load, and the distance between the trailers wheel and the bicycles back wheel is smaller than the bicycles own wheel space)
• Little rolling resistance (use of a large wheel)
• Functionality and simple operation – quick attaching and detaching of the fork (fastening); easy fixing of almost any load (self-locking buckle) and releasing it with a single movement of one hand.
• Easy storage – the trailer is not much wider than the wheel itself.
• Reduced risk of injuries (no hard trailer components protruding from the side)
• Wide range of wheels to choose from (large wheel)
• Minimum load on the bicycles rear axle (placing the wheel close to the centre of load gravity)
• Simplicity and safety of the fastening – making use of the fork arms; resilience (specially quenched steel) instead of complicated clasps plus emergency detaching available in case of accident.

Spare wheel

Extrawheel as the worlds only large-wheel bicycle trailer may also turn out to be helpful in a situation when cracking of the front wheel spoke and its friction against the brake or mudguard supports will make it impossible to continue the journey. Transferring the twisted wheel to the trailer, which is less loaded and will ensure the wheel greater freedom of movement, may turn out to be a salutary solution, especially if you're far away from civilisation.

Bicycles

Extrawheel trailers can be attached to any bicycle with any wheel diameter, suspension system or type of brakes. In those cases where the axle is constructed with a geared hub mechanism in the rear wheel, it is possible to fix special nuts beside the axle, for instance where the carrying rack supports are screwed down.

Extrawheel is designed for (20", 26", 27", 28"), and for bicycles with 29" wheels.

What the reviewers say...

Advert Trailers

An inexpensive and exceptionally attractive alternative to any advertising campaign. Our trailers, with their surprising construction and environmental friendliness, do not burden with any petrol or parking costs. Capable of going where crowds love to gather, places often impenetrable by stationary advertising and cars, they have unknown-to-date, enormous power of influence. Additionally, they facilitate contact with a real human being, one ready to dispense information, a brochure or a product sample, or to sell the advertised product.

Panniers for Extrawheel

Choose from a set of specifically designed and developed panniers to finish your EXTRAWHEEL.

Expert panniers - set of two panniers

Application - to be mounted both to the Extrawheel Voyager trailer and to the bicycle's rear carrying rack.

Cordura - polyamide fabric currently considered the most durable material in the construction of professional panniers and backpacks. Used by the military, special services and the most renowned producers of outdoor equipment. It is enormously resistant to mechanical damage, while a special weave that prevents enlargement of a possible tear. Additionally we subject Cordura to the process of permanent impregnation - coating the inner side with a layer of PVC polyester resin.

Original Cordura will even make it through an expedition through tropical jungle. The advanced, water-resistant with rolled closing of the chamber will protect the contents of the panniers from monsoon rains. Its functional shape and impressive capacity will allow you to pack up for a round-the-world expedition! Expert is a module collection - thanks to detachable flaps and pockets everyone can adjust the panniers to their needs and to the road they are travelling. Non-breakable stiffenings and clamps and a solid load-bearing system have performed well in the most frantic expeditions.

Material: Cordura
Capacity: 80 litres (whole set)
Weight: 2600 g (whole set)

Construction:

• Capacious main chamber,
• Stiffening from the side of the wheel with non-breakable polypropylene board 3 mm in thickness w shape memory,
• Tight rolled closing,
• Detachable flap allowing adjustment of capacity,
• Detachable, water-proof 3-litre pockets which together with attached straps may function as independent water-proof bags,
• Cordura coated from the inside with a tight layer of PVC polymer resin,
• Glued seams,
• Nylon non-breakable clamps,
• Fluorescent elements visible even at 600 m,
• Comfortable handle for carrying,
• Steel fittings (hooks), with double zinc-coating, 2 mm in thickness,
• Well performing load-bearing system.

Dimensions:

• Base width - 27 cm,
• Width - 35 cm,
• Height after triple roll-up - 49 cm,
• Thickness - 16 cm,
• Spacing of hooks - 21.50 cm.

DRY panniers - set of two panniers

Application - to be mounted both to the Extrawheel Voyager trailer and to the bicycle's rear carrying rack.

Securo 680 - PVC-coated polyester fabric. Less durable than Cordura, but thanks to an ideally smooth surface is easier to maintain clean and completely water-proof.

Dry are made to be used where water is the dominant element. They dread no downpours or crossing rushing streams. Coated on both sides, the Securo 680 material not only doesn't leak water, but it doesn't absorb it at all! The pannier panels are welded, which is why there is no problem with leaks on the seams, as there aren't any seams. Additional advantages of the Dry series include the attractive price, low weight and very large capacity.

Material: Securo 680
Capacity: 60 litres (whole set)
Weight: 1650 g (whole set)

Construction:

• Capacious main chamber,
• Stiffening from the side of the wheel with non-breakable polypropylene board 3 mm in thickness w shape memory,
• Seams precisely welded, completely water-proof,
• Tight, rolled closing,
• Nylon non-breakable clamps,
• Fluorescent elements visible even at 600 m,
• Comfortable handle for carrying,
• Steel fittings (hooks), with double zinc-coating, 2 mm in thickness,
• Well performing load-bearing system.

Dimensions:

• Base width - 27 cm,
• Width - 38 cm,
• Height after triple roll-up - 42 cm,
• Thickness - 16 cm,
• Spacing of hooks - 21.5 cm

Pannier assembly

Fix pressing hook to the lower part of carrying rack in bicycle or Extrawheel Voyager trailer, then using the handle raise the pannier up and fasten the load-bearing hooks on the upper edge of the rack... done!

NOTE: Prior to first assembly of the panniers, adjust the length of the pressing strap to the rack. Otherwise you will risk unfastening of the panniers in riding! The tension force should make resistance during pannier assembly (this is especially vital with heavy panniers).

NOTE: To ensure high tightness the closing of the panniers should be rolled up at least twice.

Transporting bags

We would like to conclude our offer with completely waterproof (even under water) transporting bags which will give your luggage excellent protection against dust, water and humidity. Their large capacity (60 litres) will allow you to carry a total of 120 litres of luggage fitted to the shape of the bags. The lack of unnecessary buckles and hard edges will facilitate filling the bags and at the same time will protect the trailer's cover against wearing through.

Technical Data:

capacity: max. 60 litres weight: 850g dimensions: diameter: 35cm, height before rolling up: 90cm tight rolled-up closure polypropylene unbreakable buckles special-process bonded seams convenient carrying handle.

In order for the bags to be waterproof under water, the closure should be rolled up at least four times

Advice - packing panniers and transportation bags

• General rule: centre of gravity should be as low as possible.
• We place the heaviest load possibly low and close to the inner wall of the pannier or transportation bags.
• The left and right pannier (or bags) should weigh the same - wrong balancing will make riding somewhat difficult.
• When you have arrived at correct load balancing, you should remember or write down which things go to which pannier, and you will avoid unnecessary effort during repacking the next day or desperate ransacking of all panniers in search of some knick-knack.
• Try to pack the panniers thematically, i.e. so that you don't need to open all the panniers to prepare a meal. It makes life easier to put all the knick-knacks necessary for every stay overnight in one pannier, and you will avoid a mess in your tent.
• Protect food tins and other sharp-edged objects for instance between clothes so that don't wear through the material.
• Make sure all bottles (for instance with oil, shampoo, suntan cream) are tight and for safety reasons always put them in plastic bags!
• Always put containers with gas for the cooker far away from the outer wall of the pannier to protect them against crushing, for instance during a fall. The same applies to fragile equipment, for instance laptops, cameras etc.
• If you are using a petrol cooker, store the cooker and petrol separately from food which is not packed hermetically (for instance bread) not to risk poisoning or bad taste experience...
• Separate clean and dirty clothes by putting them into plastic bags, which will additionally protect them against moisture. Avoid putting wet clothes into the panniers, even in plastic bags. Better put them under the flap.
• In nasty conditions pack the sleeping bag into a plastic bag. Even if you have water-proof panniers after several rainy days the filling of the sleeping bag will start attracting moisture from the air, while its drying in field conditions will most certainly turn out very difficult.
• Don't forget to put the things most needed in a given day on top in the panniers, for instance raincoat, food for the next meal etc.
• Put tools, the first-aid-kit and other emergency accessories in a separate pocket so that you have quick access to them.
• Specially valuable objects, such as photographic equipment, documents, money, etc. should best be put in a small pannier mounted to the handlebars which can be easily dismounted at stops. Don't keep all your money in one place! When going abroad make a Xerox copy of your passport and other important documents and keep them separately from the originals.