Viper Junior

OTK Kart Group's version of the rental kart dedicated to young drivers and children, available in the Tony Kart, Kosmic Kart, Redspeed Kart, Exprit Kart, EOS Kart and Gillard Kart colours

The Viper Junior represent the best balance between performance, ease of use and longevity of the vehicle. Its features make it, together with the various optional offered by OTK, the perfect rental kart for all needs, even those of the youngest, at their first experience on karts, from eight years of age onwards. In addition, it is available in both petrol and electric versions (to learn more visit the 'engines' section of this website). Here is all the technical information on the Viper Kart by OTK Kart Group.

The Kart

OTK Kart Group has designed the Viper Junior with the aim of offering a kart that is easy to handle as well as easy and enjoyable to use on indoor and outdoor tracks. How big is this kart? It has a length of 1,890 mm (1,020 mm wheelbase), a maximum width of 1,280 mm and a height of 630 mm. One of the Viper Junior's main qualities is its low weight. This feature has a double positive effect: on the kart reliability (which we explore further on this page), on one hand, and on its performance, on the other. How much a kart like the Viper Junior weighs is easily said: about 138 kg in the version equipped with a Honda GX 160 cc engine with belt drive (without roll-bar, safety belts and ballast support, which are optional). While in the version equipped with the Honda GX200 cc engine, its weight is 140 kg.

Features

The Viper Junior is entirely built by OTK Kart Group in Italy (how is a go-kart built? Find out in this section). What is the Viper rental kart made of? The frame of this rental kart is made of chrome-molybdenum steel and consists of 32 mm diameter and 2.5 mm thick tubes. Most of the accessories are made of steel and aluminum, materials that ensure the right balance between solidity of the vehicle and weight containment. Compliance with the different drivers’ build is guaranteed thanks to the adjustable pedals, covered with protective covers, and the adjustable seat with reinforced structure. Safety in karting is a fundamental aspect: to protect the Viper Junior and the driver in the event of impact on the track, between karts or against walls, OTK has equipped this rental kart with a polyethylene outer protection, a polyurethane shock absorber and a column with integrated shock absorber. This allows, in the event of impact, energy to be dissipated, preserving the driver's upper limbs from injury. Standard accessories are: the ergonomic steering wheel, made of polyurethane and high-strength steel with a diameter of 300 mm, and, for karts equipped with a 4-stroke internal combustion engine, the 9-litre fuel tank with a petrol protection cover.

Engines

What engine can be fitted to a kart like the Viper Senior? This kart is available in both electric and petrol versions. As far as the latter are concerned, OTK Kart Group allows you to choose the Honda GX 160 cc engine, which allows you to have a Viper Junior kart with a power of 4.8 hp and a maximum torque of 10.3 Nm. Or, if you wish, you can choose the GX 200 cc engine, which, although it makes the kart heavier, allows you to exploit a power output of 5.8 hp and a maximum torque of 12.4 Nm. Both Honda GX engines are available with an RPM limiter.

Optional accessories

OTK Kart Group provides a wide range of accessories and optional equipment to meet the different needs of indoor and outdoor track owners. For example, those wishing to ensure greater karting safety for drivers on the track can ask for the roll-bar kit with four-point safety belts. In addition, the Viper Junior can be equipped with a De Haardt transponder for remote control of the kart. What are the Viper Junior kart tyres? On request, the OTK rental kart can be equipped with special tyre sets for rental karts. The version of the OTK Kart Group rental kart suitable for children and youngsters can be customized with the colours and graphics of your circuit. Ask for the customized stickers kit for the Viper Junior go-kart.