The VIPER offers performance on the flat and is powerful enough to ride the hills with ease.
- Aircraft grade aluminium
- State of the art electronics
- Ni-MH batteries
- Microprocessor controlled charger
- Heavy duty cables and connectors
- V brakes
- 20” wheel for fast acceleration
- Cycle computer, bell, and drink bottle.
- Quad Viper version also available (contact EPC for details)
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The Viper is powered by the Heinzmann™ electronic hub which is renowned for its reliability and ruggedness.
All Heinzmann motors are built to the same basic plan. The motor is spoked directly into the rim, and can be fitted to any size from 16” to 28”.
The motor is 36V, 200W, 43Nm
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The Saft power module is a very sophisticated piece of equipment. The module contains the Ni-MH batteries, a very clever battery monitor, a very sophisticated electronic controller with numerous safty features and a full BMS (Battery Management System.
Saft power modules generally last well over 600 cycles, thats two years of daily use. The non reversable decline is generally down to the quality of the cell, the Saft cells are generally acknowledged to be the best made, so last longer than the cheaper brands.
There are two models, 8.5ah / 13.5ah.
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The Saft battery meter is very sophisticated. It achieves a high level of accuracy by measuring the ampage throughput of the pack and compensates for temperature.
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Controller
A pulse-width controller, controlled by the throttle on the handlebar. The throttle has an on/off switch and light, and there's a keyswitch on the controller.
The controller also has safety features to protect you and other parts of the system: it monitors the temperature of the motor at all times, and it monitors every cell in the pack - if anything goes wrong (very rare!) it cuts out to protect you and everything else.
Cables and Connectors
To stand up to years of use in all weathers, the toughest cables and connectors are used.
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Designed to work closely with the Power Pack, it is a microprocessor-controlled "smart" charger which monitors the pack's temperature, current and voltage to charge the pack in two hours. Because it is a switched-mode charger, it doesn't have a heavy transformer and is easier to carry with you.
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Docking System
The Viper power cycle can be connected to most rigid wheelchairs via a docking system that is permanently mounted under the wheelchair. It is lightweight, and adds approximately one kilogram to the weight of the chair. Once connected it takes only seconds to dock on. The rear of the docking system is bolted to either the back axle or a bar going across the back of the chair. The front is bolted to the bar underneath the front of the seat. Some chairs do not have this bar, Kuschall for example. In this case we tailor a bar to the chair, which is then bolted on using the existing holes.
Vipers' Technical Specification
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Cycle Weight
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12kg
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Battery Weight
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5 kg
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Battery Type
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8.5ah Ni-MH / 13.5AH Ni-MH
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RPM
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176
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Torque
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43 NM
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Voltage
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36 V
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Wattage
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200 Watt
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Amps
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25 A
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Range
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10 miles (depending on load and terrain)
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Performance
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10 mph / 16 kph
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Measurements are approximate and to be used as a guide only.
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£0.00
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