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//  NJ1 adaptive bike - Pure Flexibility!

NJ1 adaptive bike (Rohloff)
Whether it is a trip into the city or a longer tour, the NJ1 adaptive bike allows for easy and comfortable travelling at all times, without having to leave your own wheelchair behind. Apart from that, the adaptive bike helps you enhance your physical well-being and fitness. The NJ1 adaptive bike is light and stable and has excellent handling characteristics. Top-quality gear and brake components from the bicycle industry ensure precise switching of gears and braking. The handbike equipment is variable, from touring bike to sports bike.

Also available is the NJ1 compact bike with electric support: During pedalling you can reach support levels of up to 300%. Without pedalling you can travel up to 6 km/h (3.75 mph).

The NJ1 adaptive bike is perfect for beginners. It could also be used as a drive unit for the NJ1 compact bike at a later time, or it could temporarily be used as a recumbent bike / adaptive bike. There is also a large selection of accessories for tetraplegics available.

Light weight starting at 8.3 kg, and pack size starting at 115 x 43 x 50.8 cm
  • Low travel effort.
  • Easy loading and transportation.

Choice of central adapter or front adapter
  • Central adapter: mount to axle or cross tube (rigid frame) under the seat or to folding mechanism (folding frame).
  • Front adapter: mount to front frame tubes. Adjustable for various tube diameters.
  • Detachable from the wheelchair in just a few steps.
  • After decoupling almost no extra weight on wheelchair and no functional restriction to the wheelchair (e.g. folding mechanism).
  • One adapter for all PRO ACTIV adaptive bikes, tractors and attachments.

Optimum adjustment to the user's requirements and abilities
  • Various bottom bracket supports and adjustment options allow for continuous adjustment to the user.

Stand (optional) can be folded while travelling, saving space
  • Easy coupling and decoupling, as the handbike is positioned in the required adaptation height.
  • When decoupled the handbike is in a stable position.

Selection of various gear shift systems
  • Derailleurs: Shimano Deore 27-gear, Shimano Deore XT 27-gear, Shimano Deore XT DYNA SYS 30-gear.
  • Hub gears: Shimano Nexus Inter 7 (7 gears), Shimano Nexus Inter 8 (8 gears), Shimano Alfine 11 gears, Rohloff 14-gear.
  • More components upon request.

Effective brakes
  • Shimano V-Brake rim brake.
  • Hydraulic disc brakes.
  • Back-pedalling brake.

Double-use function on wheelchair and chassis of the NJ1 compact bike possible
  • Option 1: transfer to recumbent bike at a later time (for perfect lying position, modification of the drive unit and purchase of the chassis is required).
  • Option 2: temporary changes between adaptive bike and recumbent bike possible (this must be tested to see whether this is possible with the user's impairment).

Extensive tetra equipment
  • Flip or chin gear shift, back-pedalling brake for hub gears and derailleurs, crank freewheel, tetra shell handles, tetra grip forks and much more.

Electric support add-on / tractor conversion
  • A hub motor can be added at a later time.
  • Electric support up to 24.9 km/h (15.5 mph).
  • Speeds of up to 6 km/h (3.75 mph) using the accelerator handle without pedalling.

Large selection of accessories
Total weight from 8.3 kg
Central adapter weight from 2.8 kg for rigid-frame wheelchairs; from 3.6 kg for folding-frame wheelchairs
Front adapter weight from 3.6 kg
Max. load weight Standard up to 120 kg trailing load and 10 kg user load capacity; above 120 kg upon request!
Pack size from 115 x 43 x 50.8 cm
Possible drive wheel sizes 20″, 26″
Grip sizes 40 cm, 45 cm, 50 cm; other grip sizes upon request.
Crank lengths 155 mm, 175 mm, 195 mm, custom-made
Materials and manufacturing 
  • High-strength aluminium alloys for a very high degree of frame rigidity and low weight.
  • Resistant powder coating and anodised surfaces for an attractive design and scratch resistance.
  • Component groups are CNC-machined inhouse and ensure the highest level of stability and accuracy of fit.
  • Precision brand bearings for handbike durability and reliability.
  • As a result of the high manufacturing depth individual customer requests can be dealt with.
  • Custom-made models are possible upon request.
About us
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PROACTIV GmbH Rehatechnik PRO ACTIV Reha-Technik GmbH
Im Hofstätt 11
72359 Dotternhausen
Tel +49 7427 9480-0