Wolturnus Fatbike
The Wolturnus Fatbike  gives hand cyclists entirely new opportunities, independent of challenging weather and ground conditions.
The handbike, featuring oversize tires, is ideal for riding on  snow/ gravel / sand & muddy terrain.
This handbike, featuring oversize tires, is ideal for riding on unstable terrain like snow, gravel, sand and mud.
The Fatbike comes with an adjustable seat and back upholstery, an adjustable back angle, a Wing Back ILSA and electrical support.
The 250 W has a range of up to 60 km and adds approximately 8 kg of extra weight to the handbike.
The Wolturnus Fat Bike  off-road handbike has a ground clearance of 20 cm ( 8")  and is equipped with a 26″ front wheel and 20″ rear wheels, powerful disc brakes and a Shimano gear system with 11 gears.
The Fatbike gives handcyclists entirely new opportunities, independent of challenging weather and ground conditions.
This model is a great sports equipment for users at all experience levels and those wanting a bit more off road capabilities than the standard trike ! 
 
Wing Back ILSA ( Cost Option)
A unique multi-adjustable back system ( See images)
Wing Back ILSA (Integrated Lateral Support Adjustable) is a patented back system.
The wing Back allows for stepless adjustment of the back in a matter of seconds.
Wing Back helps people who suffer from back slump, tiredness or bad balance due to conditions such as scoliosis or kyphosis.
The wing Back straightens the person up in the wheelchair and keeps you in seated  supported position.
 
Wing Back also has a preventative effect, ensuring that the wheelchair user does not develop a crooked seating position in the future.
It has a very simple design, yet is unique. No other back system on the market gives such flexibility with seating positions.
The wing back can be adjusted quickly according to the user’s anatomy or if the seating position changes. Because the trunk is adjusted with Velcro straps, it can be adjusted at any time to suit the current seated position – right down to the precise millimetre.