Compatibility

Optimized composition to guarantee your inner tube has a good seal.

Watertight

This inner tube is suitable for 20" diameter tires with 1.90 to 2.20 cross-section with a 33 mm Schrader valve.

Tire Assembly

Valve Type

Wheel Size

Self-Repair

Section

Etrto

Check all the information indicated on the sidewall of the tire (diameter and width). For example, 20 x 2.10 means your tire is 20" in diameter and 2.10" wide.
   

How to choose an inner tube

Remove the old inner tube using a tire lever.

Removing an inner tube

Check the condition of your tire and replace it if necessary. 
Make sure no objects are lodged in the tire.
Check the condition of your tire rim strip. A rim strip that’s even slightly bent can cause punctures.
Check that your rim doesn’t have any other issues that could damage your inner tube.

Checks to carry out before installing an inner tube

Watch our video before you start.
Pre-inflate the inner tube slightly to avoid pinching.
Make sure you’re using the correct valve for your rim and then insert it.
Put the entire inner tube inside the tire so that it fits inside the rim.
Take care not to pinch the inner tube when installing it.

Installing the inner tube

Start installing the tire at the valve.
Finish installing the tire across from the valve to avoid pinching the inner tube.
Never install your tire with a tool or a tire lever, as you risk pinching or puncturing the inner tube.

Installing the tire

Carefully inflate your tire to the pressure recommended by the manufacturer (visible on the tire sidewall in PSI or bars: 1 bar = 14.51 PSI).
Regularly check that your tire is in the correct position as you inflate it.

Inflating the tire

To prevent pinching and achieve the best performance, we recommend checking and pumping up your front tire as needed before each ride.

Pro tip

Weight:

Inner Tubes

700x35 to 700x45 tires (28"). 48-mm valve.
ETRTO 35/45 – 622

Waterproof

Compatible with 700 diameter tires, with a cross-section ranging from 35 to 45 and a 48-mm Presta valve.

Check the sidewall for tire information (diameter and width). For example, 27.5 x 1.90 means a tire with a 27.5” diameter that is 1.90” wide.
The dimensions in mm (ETRTO international unit) are also on the tire sidewall.
For example 50-584 means the tire is 50 mm wide with an inner diameter of 584 mm (or 27.5 x 1.90).

How to choose your inner tube

Remove the old inner tube using Btwin tire levers.

Check the condition of your tire and replace it if necessary. 
Make sure no objects are lodged in the tire.
Check the condition of your tire rim strip.
A rim strip that’s even slightly bent can cause punctures.
Check that your rim doesn’t have any other issues that could damage your inner tube.

To avoid punctures from pinching and for the best tire performance, we recommend checking your tires and inflating them to the suggested pressure before every ride.

Grooves on the sides provide excellent grip in turns.

Grip

Protect+ technology:
1 mm high density elastomer reinforcement.

Puncture resistance

Efficiency

Weight

Reflective sidewall safety strips help you be seen around town.

Visibility

This tire was designed for regular cycling on a folding city bike.
Also suitable for 20" kids' city bikes.

tire width x wheel size

Tire Bead

Type of Tyre

tire compound type

e-bike ready

Width (mm)

reflective

Playing Surface

Inspect the tread to measure wear on city bike’s tires and to know when they need replacing.
Usual signs of wear include:
- tread starting to fray
- the appearance of micro cracks
- low tread depth - 
the carcass becomes visible.
All of these indicate that the tire is worn and needs replacing.

How to measure tire wear

To remove your tire, start by deflating the inner tube completely.
Once deflated, use a tire lever to remove it from the rim.

How to remove a tire

To put it back on, place one side of the tire into the bottom of the rim. Next, inflate your inner tube to approximately 30% before putting it into the tire (inflating it beforehand reduces the risk of pinching the inner tube). Then, insert the other side of the tire into the rim, starting on the side opposite the valve. Before inflating the inner tube all the way, check to make sure it isn’t pinched between the tire and the rim.

How to fit a tire

Inflate your tire carefully. The recommended pressure is indicated on the side of your tire.
Always make sure your tires are at the correct pressure before heading out on your ride.

How to inflate your tire correctly

When inflating your tire, make sure you inflate it to the suitable pressure for the terrain and the weather conditions you will be riding in. When riding in rainy weather, lower the tire pressure to increase its traction. When riding in dry weather, increase the pressure for better performance.

Bike Tires

This inner tube is suitable for 24" diameter tires with 1.90 to 2.20 cross-section with a 33 mm Schrader valve.

Check all the information indicated on the sidewall of the tire (diameter and width). For example, 24 x 2.10 means your tire is 24" in diameter and 2.10" wide.
   

Adjustable

Attaches using a 17 mm flat spanner or 8 mm Allen key.

Easy assembly/dismantling

Designed for parking a bike weighing no more than 25 kg (including baggage).

Maximum Load

Position

Attaches near the chainset. A central plate provided for bikes without screw holes (sold with the product).

Where does it mount onto your bike?

Given the variety of bikes, frame shapes, and bottom bracket heights, we recommend asking our sales assistants for help.

What kind of bike is it for?

Locks & Stands

Compatible with various accessories (refer to technical information tab)

Easy transport

Folded L/H/W: 78 x 66 x 38 cm.
Unfolded L/W/H: 146 x 108 x 58.5 cm.

Compact design

Versatility

Lifetime warranty on the frame, stem (excl. hinge), rigid fork, and handlebar.

Lifetime warranty

Combine cycling with other transport mode and save space. Conforms to LTA regulations for bringing on board buses and trains, fully folded.

Type of Bike Frame

Frequency

Wheel Size (in)

With Kickstand

Number of Speeds

Power Assisted

Frame Shape

Suspension

Folding Type

6061 T6 aluminum frame—lightweight, dynamic, and sturdy.
The easy lateral-fold system means the bike takes up little space wherever you store it... You'll forget your bike is even there.
Mechanism to quickly lock the frame and stem so you can keep the bike folded and transport it easily.

Frame

Hi-ten steel fork for greater durability.

Fork

Thanks to the Shimano 7-speed derailleur, the Tilt 500 can easily cope with any gradient so you can adapt your effort throughout your ride.
The Shimano Revo-Shift shifter is ergonomic and precise. 
Metres of development: 2.96 m/5.90 m.

Drivetrain

Steel V-brake and caliper guarantee effective and progressive braking.

Brakes

Steel 60-mm low-rise bars to adjust your position on the bike for easier handling. Handlebar width: 560 mm. Fixed aluminum stem with quick-release lock for greater rigidity.
Distance from saddle to handlebar: 540 mm. Bottom bracket to saddle distance: 480 to 780 mm.

Handlebars/stem/steering

Comfortable, seamless foam saddle to stop water getting in.
Theft-proof seat post that doesn’t twist. 31.6 cm diameter.

Saddle/seat post

20” single rim with black anodized walls.

Wheels

20 x 1.75 city tires.
We made these tires lighter to get better performance while retaining their grip.

Tires

The fold-up pedals reduce bulk for easy storage. Once the pedals are folded up and the stem folded down, the bike can be stored against a wall and takes up very little space (26 cm wide). Crank length: 170 mm.

Crankset

Mudguard with stays and a double chainguard to stop the chain from jumping and protect it from dirt.
Compatible with the Tilt transport cover and the Btwin pannier rack for folding bikes.
Front and rear reflectors

Accessories/equipment

Lifetime warranty on manufacturing defects for all metal frames, rigid forks, stems, and handlebars
Five-year warranty on all carbon frames and forks
Two-year warranty on all other parts
Excludes damages arising from normal wear and tear, misuse, negligence, and unauthorized modifications

Warranty

Compatible accessories
Folding bike rear carrier (Model: 8328464)
Folding bike pannier (Model: 8349941)
Folding bike bag (Model: 8271631)
Folding bike kickstand (Model: 8356172)

Compatible accessories

Your bike's components (chain, derailleur, brakes, etc.) will need adjustments over time. Take advantage of a free tune-up for one year after purchase. Our technicians will carry out a 13-point check of your bike. Just visit your nearest Decathlon workshop with your Decathlon membership card and/or receipt.

After-Sales Service

City & Foldable Bikes

650 x 28 to 650 x 42 tires and 650 mm wheels with a 28 to 42 cross-section.

This inner tube is suitable for 650 mm diameter tires with a 28 to 42 cross-section and a 48-mm Schrader valve.

Check the information indicated on the sidewall of the tire (diameter and width).
For example, 26 x 2.20 means your tire is 26" in diameter and 2.20" wide.
The dimensions in mm (ETRTO international unit) are also on the tire sidewall. For example, 50-559 means that the tire is 50-mm wide with a 559 mm inner diameter (approx. 26 x 2.00).

To avoid punctures from pinching and for the best tire performance, we recommend checking your tires and, if necessary, inflating them to the suggested pressure before every ride.

Tip from the pros

with 700 diameter tires, 23 to 32-mm cross-section. ETRTO 23/32 – 622

This inner tube is suitable for a 700 diameter tire with a 23 to 32 cross-section.

Check the sidewall for tire information (diameter and width). For example, 27.5 x 1.90 means a tire with a 27.5” diameter that is 1.90” wide.
The dimensions in mm (ETRTO international unit) are also on the tire sidewall.
For example, 50-584 means your tire is 50-mm wide with an inner diameter of 584 mm (approx. 27.5x2.00).

Check the condition of your tire and replace it if necessary. 
Make sure no objects are lodged in the tire.
Check the condition and position of your rim strip.
A rim strip that’s even slightly bent can cause punctures.
Check that your rim doesn’t have any other issues that could damage your inner tube.

20", 1.7 to 2.2 cross-section tires 
ETRTO 44/57 – 406

This inner tube is suitable for 20" diameter tires with 1.70 to 2.20 cross-section with a 33 mm Schrader valve.

Check the sidewall for tire information (diameter and width).
For example, 20 x 2.10 means your tire is 20" in diameter and 2.10" wide.
The dimensions in mm (ETRTO international unit) are also on the tire sidewall. For example, 50-406 means that the tire is 50-mm wide with a 406 mm inner diameter (approx. 20 x 2.00).

700 diameter tires, 23 to 32 mm cross-section
60 mm Presta valve

This inner tube is suitable for 700 mm diameter tires with a 23 to 32 cross-section and a 60 mm Presta valve.

Check the sidewall for tire information (diameter and width). For example, 27.5 x 1.90 means a tire with a 27.5” diameter that is 1.90” wide.
The dimensions in mm (ETRTO international unit) are also on the tire sidewall.
For example, 50-584 means your tire is 50-mm wide with an inner diameter of 584 mm (27.5 x 2.00).

This inner tube is suitable for 20" diameter tires with 1.50 to 1.90 cross-section with a 33 mm Schrader valve.

Check all the information indicated on the sidewall of the tire (diameter and width). For example, 20 x 1.60 means your tire is 20" in diameter and 1.60" wide.
   

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decathlon assurance sports

20 x 1.9/2.2 inner tube