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Comparison Yedoo City vs Yedoo Four

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Yedoo City
Yedoo Four
Yedoo CityYedoo Four
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Main
Wide platform. Excellent manoeuvrability and manoeuvrability. Large inflatable wheels. Front and rear brake. Footrest available. Withstands heavy loads.
Product typebicycle scooterbicycle scooter
Max. load120 kg120 kg
Age, from12 years12 years
Design
Number of wheels2 wheels2 wheels
Handlebar typebike handlebarbike handlebar
Deck materialsteelsteel
Front wheel size40 cm40 cm
Rear wheel(s) size30 cm30 cm
Wheelsinflatableinflatable
Front brakerim
Rear brakerim
Features
Features
handlebar height adjustment
stand
handlebar height adjustment
stand
General
Max. height104 cm105 cm
Deck size40 cm
Footspace36 cm36 cm
Size135х66х93 cm135х66х93 cm
Weight9.3 kg9.3 kg
Color
Added to E-Catalogjune 2013june 2013

Front brake

— Rim. The rim brake is considered the simplest type of braking system. Such brakes provide a smooth deceleration and a complete stop of the scooter at an average speed. The stopping distance is usually medium or long. The rim brake is characterised by pads, which, using a special mechanism, are pressed against the wheel rim. The pads themselves are driven by a lever which is placed on the handlebar. Among the advantages of a rim brake are low price and simple design. And drawbacks are fairly quick wear of the pads and the need to adjust the brakes as the friction linings wear out. Additionally, when using a scooter with a rim brake, be aware that the pads become less grippy if the rim is wet. In rainy, cloudy and slushy weather, the rim brake cannot be relied upon.

— Disk. Disc type brakes are considered more advanced than rim (shoe) systems. The disc brake allows the scooter to stop quickly enough, and the braking distance itself can be either minimal or medium. Such brakes are represented by a friction clutch that acts on a small-diameter disc. The disc is attached to the wheel axle. The clutch is pressed against the brake disc with a sufficiently large force, which allows the disc brakes to be effective even when wet on the clutch. The disc brake is controlled by a lever that is placed on the steering wheel. The advantages of a disc brake for a scooter are reliability, durability and the ability to stop quickly. Among the shortcomings, we highlight the high...price and the need to adjust as the friction clutch wears out.

— Drum. Drum brakes slow down well and provide a fairly quick stop. In terms of efficiency, the drum brake for a scooter is between the rim and disc brake systems. The drum brake uses pads that are located inside the rim. In this case, the friction plates act on the inside of the rim. The brake with a drum device has many advantages: a large friction clutch contact surface, water protection, reliability and durability. Among the shortcomings can be noted the use of massive wheels, the complexity of service maintenance, and the need for periodic adjustment.

— Electric. Electric brakes are used by electric scooters. In this case, the deceleration and stop are made by the electric motor itself, by reducing the speed. Usually, the electric brake provides a soft and smooth stop. Usually, the electric brake acts as an auxiliary brake system. Also, advanced scooters often use a regenerative electric brake. In this case, when decelerating, energy is recovered, which allows you to recharge the battery pack.

— No brake. The front wheel is not equipped with a brake system. The brake can only be provided at the rear. But there are also such scooters that have no brakes either in front or in the back. The complete absence of a traditional brake is typical for the simplest scooters. Slowing down and stopping occur due to the actions of the rider himself. In this case, the user brakes with a foot extended to the ground or due to the natural deceleration of the roll. Usually, scooters without a brake are not physically capable of reaching dangerously high speeds.

Rear brake

— No brake. The rear wheel is not equipped with a brake. In this case, the braking system may be provided at the front. However, some scooters do not have brakes both at the rear and at the front. The advantage of scooters without a rear brake is that the vehicle will not skid to the side when braking actively when cornering. Scooters without brakes, both front and rear, are mostly the simplest children's models that do not accelerate to a dangerous speed. In this case, braking occurs either by reducing the overrun or by kicking the ground.

— Rim. Rim brakes slow and stop the scooter by pressing the pads against the wheel rim. The rim brake system has an average efficiency. Usually, the scooter stops gently and smoothly. The rim brake is most often installed on the rear wheel of the scooter. The soft brake prevents the vehicle from skidding when braking on turns. Rim brakes are good because they have a simple design. This kind of braking system is easy to maintain. The weak point of rim brakes is a sharp decrease in efficiency when moisture enters the rim.

— Disk. The disc brake on the rear wheel ensures a quick stop of the scooter. This type of braking system is designed more for sports and stunt scooters that often need to quickly decelerate at high speed. But the disc brake can also be found in pleasure, as well as city boards. Disc brakes have a short-stroke friction clutch. Due to the small distance between the pads and the disc, the friction...clutch very quickly comes into contact with the working surface of the brake disc. In this case, the friction clutch is pressed against the disk with a sufficiently large force. The disc brake allows the scooter to stop extremely efficiently. But when using a disc brake on the rear wheel, you should be careful, because when braking hard, especially when cornering, the scooter can skid to the side.

— Drum. The drum brake has above-average efficiency. The drum brake makes the rear wheel massive and heavy. For this reason, scooters with a drum brake system are rarely used as a stunt and sport scooters, but there are exceptions. Urban models are often equipped with a drum-type brake. This type of brake has a closed design. The pads are inside the wheel. Friction linings rub against the inner surface of the rim. Access to the drum brake is closed by a protective cover. Thanks to the closed design, neither moisture nor other blockages get inside the brake drum, which makes the brake operation more reliable and trouble-free. Among the shortcomings can be noted an increase in the dimensions and weight of the wheel and the complexity of maintenance.

— Electric Electric brake is used on electric scooters. The brake system of this type makes the stop extremely soft, slowing down occurs when the speed of the electric motor decreases. The rear location of the electric brake assumes that the electric motor is mounted on the rear wheel. The presence of an electric motor makes the wheel massive, it is difficult to use such scooters for stunts or sports riding, although the engine allows you to quickly pick up and hold speed for a long time. The electric brake system is highly reliable and durable, it does not require maintenance. But if the battery pack on the scooter runs out, the electric brake will not work. For such cases, an additional mechanical (hand or foot) brake is usually provided.

Max. height

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.

Deck size

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.
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