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//  RAPTOR 4you racing bike - no compromises!

Raptor 4you (Deore XT)
It is particularly experienced bikers who enjoy the new frame design of the RAPTOR 4you, which allows them to individually adjust the sitting and lying position. This high-end sports device is fully adapted to its user in all its dimensions and equipment. Each frame is unique, entirely tailored to the user's requirements and needs. The handbike for professional racers!

The integration of the backrest in the frame leads to further optimisation of the weight. Top-quality gear and brake components from the bicycle industry ensure precise switching of gears and braking. Apart from that, the exchangeable axle tube provides the user with a lot of flexibility. In just a few steps the RAPTOR 4you can be converted to a time trial bike with a minimal track width and wheels behind the body.

The RAPTOR 4you can also be equipped with a seat and back system based on a taken cast. This provides for a stable and clearly defined lying position. Thanks to the quick-lock system, the removable drive unit can be used with an additional unit, e.g. with electric support.

Tip: based on the ability to remove the drive unit, there is the option of defining the ideal position with a RAPTOR 4all drive unit and adjustable bottom bracket bearing support in a practical test over several days. The individual, fixed welded forks on the RAPTOR 4you can then be produced using the ideal position set.

Custom frame design
  • Each frame is unique, entirely tailored to the user's requirements and needs.
  • All frame parameters are tailored to the user's needs!

Custom seat and back system based on a taken cast
  • Very light.
  • Very stable and clearly defined sitting position.

Extreme light weight from 13.9 kg
  • Low total weight and high stability.
  • Backrest is integrated in the frame for further weight optimisation (adjustable backrest optional).

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

Effective brakes
  • Rim brake Shimano side-pull brake.
  • Hydraulic disc brakes.
  • Back pedal brake.

Flexibility in track width and centre distance thanks to exchangeable axle tube
  • Conversion from road racer to time trial bike in just a few steps.

Aluminium backrest
  • Increased free moving space thanks to the reduction of the upper part of the backrest.
  • Provides defined pressure point allowing for optimum transmission of the power of the upper part of the body to the crank.
  • Ideal base for custom backrest.

”Open belt system” seat upholstery
  • By adjusting the cross straps the pressure distribution can be controlled individually and crank positioning can be influenced.

Option: easy disassembly
  • Drive unit and chassis can be taken apart in seconds using excentric quick-lock system without any tools.
  • Rear wheels can be detached via quick-release axle.

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

Wide range of accessories
Possible types recumbent bike
Total weight from 13.9 kg
Max. load weight Standard up to 100 kg user load capacity; more than 100 kg upon request!
Possible drive wheel sizes 26″ (559/571)
Possible running wheel sizes 26″ (559/571)
Possible running wheel camber 1°, 4°, 6°
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 are able to be dealt with.
  • Custom-made models are possible upon request.
Pack size depending on individual dimensions
Grip sizes 40 cm, 45 cm, 50 cm; other grip sizes upon request.
Crank lengths 175 mm, 195 mm, custom-made
Standard height of bottom bracket from the ground (26″ wheels) custom-made
Distance of frame bottom to ground/ground clearance (26″ wheels) custom-made
Seat height (26″ wheel, seat cushion 3 cm, seat upholstery without slack) custom-made
Frame length (outer frame edges front - back) custom-made
Frame width (outer frame edges left - right) custom-made
Seat width (inner frame edges left - right) custom-made
Rear wheel axle width custom-made
Total bike length (26″ wheels, no leg rest) custom-made
Total bike width (26″ wheels, 1°camber) custom-made
About us
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PROACTIV GmbH Rehatechnik PROACTIV GmbH YouTube PRO ACTIV Reha-Technik GmbH
Im Hofstätt 11
72359 Dotternhausen
Tel +49 7427 9480-0