Comparison iTrike SR 2-053-T1 vs Globber GS 540

The maximum weight of the rider that the design of the scooter can withstand without breakdowns and accidents. This point is partly determined by the age group, and mainly by the materials used in the frame (both points below). Note that manufacturers can indicate the maximum load for perfect conditions — when the scooter rides on a perfectly flat surface or even stands still. Therefore, it is worth choosing a model for this parameter with a certain margin; this is especially important for varieties designed for increased loads, in particular scooters and stunt models (see "product type"). Even more so, you should not exceed the weight indicated in the characteristics — even if the scooter does not break down immediately, this can happen at any time after, which is fraught with accidents and injuries.

The recommended height is the optimal rider height for which the scooter is designed. The more closely the rider's actual height matches the recommended height, the more convenient and safer it will be to use the scooter. Usually, the recommended height is indicated by a certain range of values. It is perfectly acceptable to order a scooter for height, but the difference between the actual and recommended height should be minimal. When choosing a scooter, you should be guided by other parameters, such as age group, rider weight and other characteristics.

— T-bar. A traditional scooter handlebar in the form of a horizontal crossbar on a vertical bar. It is found in almost all types of scooters. Note that in kickboards such a steering wheel usually needs to be tilted rather than turned.

— Bike handlebar. The handlebar has a characteristic curved shape, in which the handles are bent back or moved upward relative to the middle. It is considered more convenient than the classic one, but it is more complex in design and costs more, and the difference in convenience is not so often noticeable. Therefore, this option is found much less frequently, mainly in fairly advanced models — in particular, most bicycle scooters are equipped with just such handlebars.

— Round handle. The handlebar is in the form of a ring or a pair of rings (a kind of “ears”) mounted on a vertical rod; There are also options without a top ring at all, in which the rod ends with a round knob. In any case, this design is used in models where the handlebar does not turn, but tilts from side to side — these can be either kickboards or some specific trikes (see “Type”).

— Y-bar. A handlebar with a bend in the top tube in the shape of the letter Y. Often in such handlebars, side supports are used to strengthen the structure, due to which Y-shaped handlebars are considered more durable in comparison with classic T-bars.

...— Bat-Wing. The shape of the Bat-Wing resembles Y-shaped rudders, but in the upper segment of this version, there is a special horizontal crossbar to strengthen the structure. Bat-Wing handlebars can withstand heavy loads and are installed primarily on stunt scooters.

The material of the handlebar carries almost the main information about the strength of the scooter since the rider leans on it while riding. Accordingly, this structural element in most cases is made of metal, namely:

— Aluminium. The key advantage of aluminium is its light weight. Handlebars made of aluminium are much lighter than their steel counterparts. A scooter with an aluminium handlebar can be a good choice for stunt riding. But to make an aluminium handlebar strong enough manufacturers have to increase the size and wall thickness. As a rule, aluminium handlebars have a non-standard increased tube size of 34.9 mm. Additionally, aluminium handlebars are more expensive than steel counterparts.

— Steel. The main advantage of steel is increased strength — such a handlebar can easily withstand high mechanical loads. But among the shortcomings can be noted high weight. Steel wheels have a high mass, which somewhat limits their scope, especially in terms of stunt driving.

Compression is a special device that connects the fork to the steering speaker. Thanks to the compression, the rigidity and reliability of the connection of the steering speaker to the fork are ensured.

— IHC. Suitable for scooters with standard diameter handlebars: 31.8mm or 1¼". This type of compression is simple in design and highly reliable. The IHC system consists of a tie bolt and an anchor. The steering wheel is connected to the compression with a clamp.

— HIC(Hidden Compression System) — this type of compression is found in scooters with a handlebar of increased diameter: 34.9 mm or 1⅜". HIC compression is widely used due to the reliability and simplicity of the design solution. The steering speaker is used with a kerf Steering clamp is applied to the steering speaker HIC compression is identical to the IHC design The only difference between the two is the rudder diameter HIC is designed for 34.9mm headsets while IHC applies to headsets 31.8 mm in diameter.

— SCS(Standart Compression System) — advanced class compression. To use the SCS, you need a scooter with a non-kerf steering speaker. A distinctive feature of the SCS compression is the use of a 4-bolt tie-down collar. The compression pinch bolt is screwed in from top to bottom. The steering speaker is put on from above. SCS compression is created under the handlebars of di...fferent diameters: 34.9 or 31.8 mm. Structurally, SCS compression is similar to HIC. The key difference between these types of compression is for the most part only in the cut on the steering speaker. The SCS does not have a kerf, but the HIC does.

— ICS(Inverted Compression System) — simple and reliable compression. The system is represented by a coupling bolt, which is screwed in from the bottom up, through the front wheels. The anchor is usually built into the fork at the factory. But in some cases, the anchor must be hammered into the fork yourself. When working with compression, there are usually several difficulties. The first is that you need a special long key to work with fasteners. The second trick is expressed in the need to remove the front wheels every time the compression is tightened.

— Tread. Threading is the simplest method of connecting a steering speaker to a fork. This type of compression is typical for entry-level scooters. Scooters with threaded compression are positioned as urban models. Such scooters are not physically adapted to the impact of high mechanical loads.

The rigidity of the wheels supplied in the scooter

The higher the number given in this parameter, the harder materials are used in the design of the wheels and the stiffer they are. Stiff wheels easier roll on different surfaces, it is easier to accelerate on them, they allow you to more accurately feel the surface under your feet and do not wear out as quickly as soft ones; on the other hand, these wheels have less traction, are more prone to vibrations and bumps, and require extra care when cornering. Therefore, wheels with high rigidity are typical mainly for professional models, and soft options are recommended for beginner riders.

Note that most scooters allow wheel replacement; this procedure is mandatory from time to time since the wheels tend to wear out. However, if necessary, you can also change a kit that is quite suitable for riding — to a harder one, or vice versa, a softer one

— 82A. Wheels with a hardness of 82A are optimal for urban scooters. This level of stiffness provides the wheels with good strength, while the wheels tenaciously contact the rolling surface. Such scooters are poorly suited for stunt riding.

— 84A. Wheels with a hardness of 84A are considered universal. These can be found both in city scooters and models for stunt riding. Rigidity at the level of 84A gives the wheels a good level of strength. Such scooters are still able to "softly" contact with the surface of the roll, but the rider will al...ready feel "hard feedback" when hitting bumps.

— 85A Wheels with a hardness of 85A are more related to stunt scooters. This level of rigidity provides the wheels with a good level of strength, but due to the increased rigidity, the soft contact of the wheels with the rolling surface is lost. If the scooter does not have suspension, the stiffness of the wheels will recoil into the platform and steering rack when hitting bumps.

— 86A. Wheels with a hardness of 86A are used in scooters for sports and stunt riding. Rigidity at the level of 86A is considered increased. Scooters with such wheels are usually designed for fairly high loads. Such wheels transmit impact and vibration to the scooter. Scooters without their shock absorption make riding on such hard wheels less comfortable. But at the same time, as the strength characteristics of the wheels increase, the chassis becomes more reliable and durable.

— 88A. Wheels with a hardness of 88A are found in stunt scooters. They are distinguished by increased strength characteristics. Due to the high rigidity of the wheels, they can easily withstand driving on any type of rolling surface. On the other hand, riding on 88A wheels provides very strong feedback to the platform and steering column. Such wheels are recommended for scooters with a built-in shock absorption system.

Bearings that the scooter is equipped with. This paragraph usually indicates not the model/brand, but the class of bearings according to the ABEC standard. Standard options for modern scooters are ABEC 5, ABEC 7, and ABEC 9 ; the higher the number, the higher the quality and accuracy of the part.

There is an opinion that better bearings allow you to accelerate better and go faster. This is partly true, but acceleration and speed are highly dependent on a number of other points — the size and material of the wheels, the weight of the scooter, etc. So models with bearings of the same class can differ markedly in speed characteristics. But what this indicator unambiguously affects is durability and price: high accuracy affects the cost, but such bearings last longer and carry loads better.

Also note that for relatively simple use, ABEC 5 class bearings are quite enough. It makes sense to specifically look for a model with ABEC 7 or ABEC 9 only if you need a scooter for advanced stunts or professional high-speed riding. However, if the selected model has high-quality bearings, it will not be worse from them anyway.

The maximum height to which the height-adjustable handlebar can be set (or just the height of the handlebar in the working position, if height adjustment is not provided).

The height of the handlebars should be such that the rider can stand on the deck straight, without bending his back, and hold on to the handles with slightly bent arms. At the same time, there is no unambiguous relationship between this parameter and the height of the rider. So the perfect option to determine the optimal height is to try it yourself, and then choose a scooter based on the result.

Scooter deck size. This item can indicate both the length and width or only one size — most often this is the length.

In general, this parameter is secondary: manufacturers choose the size of the deck depending on the type, age category, general specialization and other features of the scooter. Legroom, usually, is guaranteed to be enough on the deck. We only note that shorter decks are more agile, and longer ones are stable on the course.