Tires, Inner Tubes and Accessories

In this category you will find a wide selection of bicycle tires, inner tubes among others of the brands Continental, Panaracer, Schwalbe, WTB or HALO for your bike and accessories and accessories such as rim tape and valve extensions. The tires play a particularly important role on the bike. They provide the contact between bike and the surface on which you move and thus have a particularly large influence on driving fun, performance but also comfort and of course safety. A bad bike tire slows you down and a good one can really inspire you. With bicycle and road bike tires is a lot to consider. The most important is the right size which depends on the rims and the frame. In our range, most tires have 700c or 622c which is the most common dimension and is also known as 28". 622 describes the inner diameter of the tire in millimeters and 700 the outer diameter. However, the outer diameter is a less important and inaccurate indication of a tire, as it is influenced by width and other factors. The second indication on a tire is the width in millimeters and would be 622x28c for a 28mm wide tire, for example.  Classic road bike tires are usually between 20 and 30mm wide, while gravel and touring tires are usually between 35 and 45mm. In addition to the correct dimensions, there are now countless rubber compounds, tire profiles and tire designs of the various manufacturers of bicycle tires have a great influence on the properties of a tire. Significant properties that are influenced are the grip, weight, rolling resistance, puncture resistance and durability on different surfaces.

Measurements on the tires and find the right tire size for your rims - a short excursion into tire science!

Whether clincher, folding or tubeless tires - on current tires you will often find information from up to three sizing systems: the French system, the inch-based system and the much more accurate E.T.R.T.O system. The existence of the different sizing systems is based on historical and national reasons. These different national measurement systems once ensured that the same tire size was known under different numerical designations in different countries. This led to the fact that in different countries under the same dimension designation differently sized tires were produced, which were not compatible among themselves! The "classical" standards for tire sizes, the French and the inch-based system are based on the tire outer diameter and are given in inches (e.g. 26 inches or 28 inches) or millimeters (650, 700). The International Standardization Organization (ISO for short) has adopted a more universal system, the E.T.R.T.O (European Tyre and Rim Technical Organisation) system is based on an ISO 5775 standardized indication for uniform marking of bicycle tires and rims. The ETRTO system uses only 2 numbers based on the width of the tire and most importantly - the inner diameter of the tire to match the outer diameter of the rim.

The oldest sizing system for tires is the French. Originally developed in the mother country of bicycle racing, the French designation is composed of the following: a three-digit number indicating the approximate tire outer diameter in millimeters, a multiplication sign, a two-digit indication of tire widths in millimeters, and a letter. This may look like this: 700x25C. The letter should give an indication of the recommended rim inside diameter and give an indication of the tire height. It applies A = narrow to D = very wide. Meanwhile, however, the letter no longer says much about the actual width, since, for example, current 700C road bike tires are rather narrow and are driven on correspondingly narrow rims, but wide Twentyniner MTB tires also carry a 700C specification in the French system and are partly also moved on 40 mm wide rims.

In the inch-based system, one inch corresponds to 25.4 mm. The inch specification can be written after the decimal point in decimal (e.g. 29 x 2.40 inches) or as a fraction (e.g. 28 x 1 1/2 inches). The first value refers to the approximate outside diameter of the tire and the second usually refers to the width of the tire. In the case of a three inch figure written as a fraction such as 28" x 1 5/8" x 1 3/8", the second value represents the height and the last represents the width. Between the values are multiplication signs. When cyclists talk about 26s or 29s, it is always about the first value of the inch specification. In reality, the specification for the outer diameter rarely corresponds to the actual diameter required. The reason for this is the wide range of widths and the rim inner diameter - so 29 inch tires are in the end also only very wide 28 inch tires and fit quite well on wheels that are listed as 28 inches. Also with caution, is the conversion of a fraction, for example, from a Dutch bike or old touring bike tires. After measuring, you will most likely choose a model with a different inner diameter.

The system of the European Tyre and Rim Technical Organisation is based on the international NORM ISO 5775 for uniform marking of bicycle tires and rims. The indication is in millimeters and can look like this: 43-584. The first indication stands for the tire width and is often measured at the widest point of the carcass. The result can be different for the same tire depending on the rim and air pressure. The second, three-digit number after the long dash for the tire inner diameter. This corresponds to the diameter of the rim at the tire seat. Your tire fits reliably on your wheel or rim ring, if the 3-digit E.T.R.T.O information is the same.

If you have questions about our range of tires, associated tubes and accessories, are not sure whether or which are compatible with your bike or want general advice, contact us by phone, by mail or just visit us in our BIKE PUNK SHOWROOM in Berlin-Kreuzberg! If we do not have a certain product in stock, we will try to get it for you in a timely manner. We are happy to advise and accompany you on all topics related to your bike. For the latest products, inspiration and information follow us on Instagram!