4WD Internet Magazine
The world's premier 4WD magazine since 1995
Click here to return to the 4WD homepageIndex of 4WD vehicles and manufacturersThe Four Wheen Drive Picture Gallery4WDOnline.com ClassifiedsThe 4WD Online Clubs Database is a user-driven collection of clubs around the world4WD Online Links DatabaseHave your say on the Auto ForumsChat with others who have an interest in 4WDEnquiries and Contributions for 4WDonline.com

Rokon 2x2.

Loren and Patricia Upton, with Juan Rivas, made an all-land crossing of the Darien Gap using a Rokon Trail-Breaker two wheel drive motor-bike in 1995. This is but the latest of their many exploits in that region, Patricia having recently written an adventurer's guide to the Darien Gap

[picture of Rokon two wheel drive trail bike in the Darien Gap jpeg]
In the Darien Gap - L. L. and P. E. Upton

The Rokon Trail-Breaker is a true two wheel drive motor-cycle. Wide low-pressure tires (tyres) are fitted and a unique feature is the extra fuel capacity carried within each wheel. An automatic transmission is used and the weight kept down to 185lbs to ease man-handling over truly severe terrain (see above).

Specifications - Rokon Trail Breaker 2x2 Motor Cycle.

  • loa: 77", width: 31", height: 41", (handle-bars), fording: 24"
  • wheelbase: 49", grnd clearance: 15"
  • weight: 185lbs
  • Chrysler single cylinder 2-stroke, 146cc,
  • power: 10HP at 8000rpm, max speed 40mph (60kph)
  • transmission: 3 speed, automatic with torque converter, full-time front and rear wheel drive, ie. 2x2
  • suspension: balloon tyres, brakes: disc/disc
  • tyres: 6.70x15 tubed, 3.5psi, fuel-tank: 2.69 gal' (US) [+ 4.5 gal' per wheel]
- L_A11ison

4WD Magazine
4WD Vehicles A-Z
4WD Gallery
4WD Conversions
Mechanical Info
Military Vehicles
Travelling Tales
4WD Toys & Models
History of 4WDs
4WD FAQ
Contact 4WDOnline


4WD Databases
Book Database
Gallery Database
Purchasing Database
Personal Homepage Database
Add | Modify


Automotive Sites
Hot Rods & Muscle Cars

Top border of the 4wdonline.com site