Our Triple Trees

Why Raked Triple Trees?

 
The addition of a sidecar to a motorcycle invariably results in high steering effort. Trail is the reason. Trail is the factor of the bikes’ steering geometry which generates a self-centering force for stability – see illustration.
 
Trail is a virtual lever arm between the tire contact patch and the steering centerline (the steering centerline is always ahead of the contact patch).
 
The longer this lever arm is, the more the wheel resists being steered out of its’ forward path (track). Large, heavy motorcycles require longer trail measurements for stability. However, when a sidecar is added, this long trail becomes an impediment to steering. In order to steer, the rider uses the leverage provided by the handlebars to overcome the self-centering force generated by trail. The relative length of the two opposing levers then becomes very important to the effort required to turn.
 
The ‘Raked” Triple Tree simply diminishes the trail measurement by moving the contact patch of the tire forward, much closer to the steering centerline. The resulting trail reduction has a dramatic affect on the effort of steering the sidecar rig or trike. The effort may be reduced by as much as half making those twisting roads a joy to negotiate!
 
This technology is not new or radical – Harley Davidson® offered raked triple trees (for use with sidecars or trikes) beginning in about 1950 and continuing into the early ’80’s. However with the advent of the rubber mounts & softails, this technology was left behind. Now, through production of our own raked trees Liberty Sidecars is able to offer owners of Harley® sidecar rigs & trikes the kind of handling they hope for!
 
Note: these ‘Raked’ Trees are for 3-wheeled use only and may not be used for solo riding.
 


 


     
    [caption id="attachment_832" align="alignleft" width="300"]Electra Glide 5º Raked Triple Tree Set Electra Glide 5º Raked Triple Tree Set[/caption]
     
    The Liberty 5° Raked Trees for Electra Glides® are CNC milled 6061-T6 Aluminum and include a high strength steering stem, lower bearing, tube caps & air fittings. These trees accept stock fork tubes, covers, light bar, windshield & fairing.
     

    Price: $950.00 + shipping

     
    For use with a sidecar or trike only.
     
     



     
    [caption id="attachment_832" align="alignleft" width="300"]Softail 5º Raked Triple Tree Set Softail 5º Raked Triple Tree Set[/caption]
     
    The Liberty 5° Raked Trees for Softails® are profiled from low alloy steel and include a high strength steering stem, lower bearing and new chrome crown. These trees accept stock ‘tins’ & covers, headlight, windshield & light bar.
     

    Price: $1,025.00 + shipping

     
    For use with a sidecar or trike only.
     
     



    In the 1940’s, Harley-Davidson® produced a special reduced trail Springer® fork especially for sidecar use. Liberty Sidecars is now able to remachine the stem area of late models Springer® forks to allow a 5° additional rake. The result is significantly reduced steering effort & enhanced drivability. Included in the conversion is a new chrome plated crown.
     

    Price: $950.00 + shipping

     
    Customer supplied fork legs, does not include disassembly or reassembly. For use with a sidecar or trike only.