Inner Tubes

Products in category: 12
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Winroad 12" AV 40mm inner tube
WINROAD bicycle inner tube for 12" wheels. It is made of high-quality butyl rubber, which makes it very durable and flexible. The inner tube is equipped with a Schrader valve (car) with a height of 40mm. The WINORAD tube takes up very little space, so you can easily have it with you at all times. The tube is resistant to aging, it retains its properties for a very long time, so it can be used as a spare tube. SPECIFICATION Brand: Winroad Wheel Size: 12 " Width: 1/2 x 2 1/4 Valve type: AV Valve h
Price 2,66 EUR
Availability: In Stock
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Winroad 16" AV 40mm inner tube
WINROAD bicycle inner tube for 12" wheels. It is made of high-quality butyl rubber, which makes it very durable and flexible. The inner tube is equipped with a Schrader valve (car) with a height of 40mm. The WINORAD tube takes up very little space, so you can easily have it with you at all times. The tube is resistant to aging, it retains its properties for a very long time, so it can be used as a spare tube. SPECIFICATION Brand: Winroad Wheel Size: 16 " Width: 1.75 - 2.125 Valve type: AV Valve
Price 2,66 EUR
Availability: In Stock
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Winroad 20" AV 48mm inner tube
WINROAD bicycle tube for 20" wheels. It is made of high-quality butyl, which makes it very durable and flexible. The inner tube is equipped with a Schrader valve (car) with a height of 48 mm. The WINROAD tube takes up very little space, so it can be easily transported even in small bicycle bags. In addition, the inner tube is made of aging-resistant rubber, so it can also serve as a spare for a long time. SPECIFICATION Brand: Winroad Wheel Size: 20 " Width: 1.75 - 2.125 Valve type: AV Valve heig
Price 2,89 EUR
Availability: In Stock
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Winroad 20" DV inner tube
WINROAD bicycle tube suitable for installation with a 20" wheel. High-quality durable inner tube, made of durable butyl rubber with excellent properties. The tube has a very good cut and crack resistance. It does not compress, does not deform and retains its properties for a long time, thanks to the fact that it is resistant to harmful factors caused by rubber aging. Equipped with a Dunlop valve (DV), which ensures that the pressure is kept at a constant level for a very long time. Before assemb
Price 2,89 EUR 2,46 EUR
Availability: In Stock
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Winroad 24" AV 48mm inner tube
WINROAD bicycle inner tube compatible with the 24" wheel. It was made of very durable butyl rubber with the utmost care and attention. The inner tube is extremely durable and resistant to cracking, mechanical damage and does not lose its properties even over time. It is equipped with the most commonly used Schrader valve (car) with a height of 48mm. It ensures that the pressure is kept constant for a very long time. In addition, it takes up little space, so you can easily fit it even into a smal
Price 2,89 EUR
Availability: In Stock
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Winroad 24" DV inner tube
WINROAD bicycle tube suitable for installation with a 24" wheel, equipped with a Dunlop valve (DV). The high-quality inner tube is made of durable butyl rubber with excellent properties. The tube has a very good resistance to cutting, cracking and various types of mechanical damage. It does not compress and does not deform even with time, thanks to the fact that it has a high resistance to rubber aging. The WINROAD tube takes up very little space, it fits easily even in a small bicycle pannier,
Price 2,89 EUR
Availability: In Stock
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Winroad 26" AV 48mm inner tube
WINROAD bicycle inner tube suitable for assembly with 26" wheels. It is characterized by high-quality workmanship and the use of very durable and damage-resistant materials for production. The inner tube is made of butyl rubber which is very flexible and resilient, which increases its resistance to cracking, cuts and other such mechanical damage. In addition, the inner tube does not lose its properties over time, so it does not press, crumble or deform. It is equipped with a 48mm Schrader valve.
Price 2,89 EUR
Availability: In Stock
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Winroad 26" DV inner tube
WINROAD bicycle inner tube suitable for 26" wheels. It was made of high quality butyl rubber and with great care and attention to detail. The inner tube offers high resistance to punctures, cuts and other types of mechanical damage. In addition, it is equipped with a Dunlop valve (Dv), which ensures constant pressure for a very long time. Thanks to the excellent properties of the material from which it was made, the WINROAD bladder is very flexible, elastic, does not compress and does not deform
Price 2,89 EUR 2,46 EUR
Availability: In Stock
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Winroad 28" 1,75 AV 48mm inner tube
WINROAD bicycle tube suitable for bicycles on wheels 28" . It has a Schrader valve (automotive) with a length of 48 mm, which guarantees the maintenance of a constant pressure level for a long time. The inner tube is made of high-quality butyl rubber, which is characterized by high durability and resistance to various types of damage. In addition, it retains its properties even after time, so it does not rub, deform or crack. The tube takes up little space, so it can be easily transported even i
Price 2,89 EUR
Availability: In Stock
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Winroad 28" 1,75 DV inner tube
WINROAD bicycle tube with Dunlop valve, suitable for 28" tires. Very durable, made of high-quality butyl rubber. The tube does not deform, break or stress even after time. It is flexible and elastic, which makes it very flexible. resistant to punctures, cracks and other mechanical damage Equipped with a Dunlop valve, which ensures the maintenance of constant pressure for a long time WINROAD tube is resistant to the harmful effects of aging, therefore it can also serve as a spare tube and can be
Price 2,89 EUR
Availability: In Stock
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Winroad 28" 35-42 AV inner tube
The WINROAD bicycle tube is extremely durable and resistant to harmful factors. It does not press, does not deform, I do not succumb to the negative effects of aging. The tube has a Schrader valve (automotive) with a height of 48mm. It is a valve very often found in bicycle inner tubes, which additionally allows a very wide selection of pumps. Before installation, the WINROAD tube takes up very little space and its storage is not troublesome, so you can always have it with you and use it as a sp
Price 2,89 EUR
Availability: In Stock
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Winroad 28" AV 48mm inner tube
WINROAD bicycle inner tube suitable for 28" wheels. It has the most popular Schrader valve (automotive) with a length of 48mm. The inner tube is made of high-quality butyl rubber. It is extremely flexible and resistant to punctures, tears and other mechanical damage. The WINROAD bladder is resistant to the harmful effects of aging, i.e. it does not press, break or crumble, therefore it can also be used as a spare tube and can be transported even for a long period of time. The tube takes up littl
Price 2,89 EUR
Availability: In Stock
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BIKE PARTS FOR EVERY RIDER

Rojax is a bicycle parts store for a wide variety of cyclists. The necessary parts will be found here by people who service or overhaul their bike and need basic spare parts. Advanced bikers also have an equally large selection, who care about the quality and durability of their equipment at the highest level. The advantage of buying bicycle parts in the online store is also the ability to find the necessary spare parts in various price categories.

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The offer includes, among others shock absorbers for MTB and trekking bikes, bicycle brakes, chains, handlebars, gears and shifting levers, cranks and bottom brackets, pedals, bicycle hubs, wheels, tires, bicycle tubes, as well as bicycle frames and forks, and many other parts for various types of bicycles.

In our online store you will find a number of parts for road, mountain, city and trekking bikes. Depending on the selected category, you can filter the results based on prices, brands and the availability of a given part in our warehouse.

Keeping bicycle parts in good condition allows you to ride safely and trouble-free. Some of them may need to be replaced with new ones after some time. It is worth taking care of them to be able to enjoy a comfortable ride all the time.

BIKE BRAKES

Bicycle brakes are one of the most important parts of a bicycle. The choice of brakes usually depends on their intended use. So the type of bike you have and the type of ride you prefer is important. The condition of the brake pads or discs should be checked on a regular basis in order to replace them with new ones at the right time.

The most popular types of bicycle brakes

  • V-brakes
  • This is the most common, universal solution for mountain, trekking and city bikes. The brake looks like the letter V - hence its name. It consists of two arms mounted on opposite sides of the fork. Both elements press the brake pads against the rim when the brake lever is pressed, causing braking. The main advantage of V-brake brakes is their braking power and the ease of repairing or replacing brake pads. It is worth knowing that due to the way they work (rubbing against the rim), they are easy to get dirty with e.g. mud or water, which affects their effectiveness.

  • Dual-Pivot Brakes
  • The method of operation and advantages of this type of brakes are similar to those in V-brake brakes - the brake pads rub against the wheel rim. The difference is their construction, which results in a lower braking force as opposed to the popular Vs. This solution is used in road bikes due to the possibility of grading the braking force and low weight. However, it may be difficult to repair them yourself.

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  • U-brakes
  • U-brakes, similarly to V-brakes, owe their name to the shape that resembles the inverted letter U. This is a model of brakes that are currently used in BMX bikes, but they are less and less common due to the greater effectiveness of newer type brakes.

  • Cantilever brakes
  • Once very popular, today less and less used. Cantilever brakes consist of two arms connected by a steel cable to which a second tensioning cable is attached. This solution is currently used in cross-country bikes. Their advantage is low price and simple construction, and the biggest disadvantage is lower braking force and poor resistance to difficult weather conditions.

  • Disc brakes
  • Unlike the rim brakes described above, the disc brakes are mounted on the wheel hub. Their operation is based on the pressure exerted by the caliper with brake pads on the wheel disc. There are two types of disc brakes on the market: mechanical and hydraulic. They differ in the way their pressure is triggered. The first one acts on the steel brake cable, while in the case of hydraulic brakes, the brake fluid is responsible for braking. The main advantage of both types of disc brakes is very good braking power and resistance to difficult weather conditions. These brakes also allow modulating the braking force and do not contribute to the wear of the wheel rim. However, their disadvantage may be the high price and the complicated method of repair.

  • Torpedo brakes
  • The brake systems in the pedals (the so-called torpedo brakes) enable classic braking by turning the pedals backwards. Torpedo brakes are most often found on bikes without gears, e.g. for children or city bikes. This is an older type of brake that is not the most effective due to its moderate braking force. Its advantage is simplicity and resistance to weather conditions, but the main disadvantage is that it stops working if the bicycle chain breaks.

    In our store you can find brake discs, calipers and pads for any type of brake.

    BIKE WHEELS AND TIRES

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    Ride comfort depends to a large extent on the quality of wheels, tires and rims. The basic issue is their selection to the type of bike and the conditions, in Englishwhich we travel the most. Our bicycle parts store supplies every cyclist. All products in this category can be adjusted depending on the chosen field of cycling.

    CYCLING WHEELS

    A bicycle handlebar is the main steering component of a bicycle. Make sure that it is suited not only to your bike, but also to the riding style you prefer. In our offer you will also find other parts of the steering system, such as grips and stems as well as rudders. You can adjust each of them to any mountain bike, city bike, road bike, etc.

    CYCLING SADDLES

    They are responsible for the comfort on the bike, and the well-chosen ones enable even the longest ride without any ailments - bicycle saddles. Their choice depends largely on the gender of the rider. Women's models differ from men's saddles due to a different body structure. It is also important to adjust them to the riding style - a different saddle will be chosen by beginners, other professional athletes. In addition to bicycle saddles, we also offer seat supports (seat posts).

    BIKE SHOCK ABSORBERS

    Bicycle shock absorbers make it easier to ride a bike, especially if we often travel routes bristling with unevenness. We enable you to choose among mountain and trekking shock absorbers that can cope with even the biggest shocks while riding off-road.

    BIKE CHAINS

    The bicycle chain is one of the main components of a bicycle drivetrain. It is thanks to him that we are able to set our two wheels in motion. It is also one of the bicycle parts that wears the fastest. Therefore, it is worth equipping yourself with a new chain that will save us in the event of an unforeseen breakdown or breakage. For those looking for other bicycle parts, we have also prepared chain tensioners, pedals and various types of sprockets and cassettes.

    We take care of a wide range in our online bicycle store, so you will find here all the necessary elements for your two-wheeler - from basic bicycle parts to bolts and accessories.

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