The resins break down when exposed to heat and heat cycles (produced from exhaust and/or brake systems) which will cause the resin in the spring to become brittle, resulting in the spring collapsing. In addition, fiberglass springs are sensitive to heat. The disadvantage is that they produce inconsistent spring rates.
![leaf spring girder front end leaf spring girder front end](https://chopperbuildershandbook.com/images/section7_img_5.jpg)
However, the cost is three times greater.
#LEAF SPRING GIRDER FRONT END FREE#
We will cover the different aspects of leaf springs from free rate to installed rate, applications, hook up points and other performance enhancing factors. Due to the fact of the popularity of the leaf spring system, we felt racers may want to understand more about how the suspension actually works. In addition, the leaf spring suspension is more forgiving on chassis set-up errors. Leaf springs possess many desirable suspension features, such as dampening, forward bite, roll over steer, high anti-squat percentage, and high lateral stiffness. Although they are the oldest, they seem to be the least understood. Your cup of tea? Let us know in the comments.Leaf springs are the oldest form of suspension in racing. In the meantime, we have got high-resolution photos to chew on below.ĭifferent? Yes. With a 300hp supercharger in the works, we imagine they’ll go pretty good. Only three of these machines will be make, to the specifications to their respective owners of course, and Bienville plans to take them to Bonneville to show how they go.
![leaf spring girder front end leaf spring girder front end](https://i.ebayimg.com/images/g/TekAAOSw~31hXJRf/s-l300.jpg)
Say what you will about the aesthetics, but adjustments to the chassis are easy to make, and require only one allen key.
![leaf spring girder front end leaf spring girder front end](http://xlforum.net/photopost/data/500/medium/inverted.jpg)
Astute readers will note that the front and rear girders are exactly the same in design, though operate differently, significantly. Headlight transforms into the instrument cluster, while the saddle is custom-fit to each owner’s buttocks. Other pieces include ISR brakes, BST custom carbon fiber wheels, and hours of painstakingly hand-crafted pieces. According to Bienville, this means that the the steering forces are decoupled from the suspension and the brake forces, with the sole tension points being the central spring mount and the swingarm pivot.īecause of this design, the suspension damping is handled by downhill mountain bike parts. This leaf spring is made of composite materials, and keeps the chassis under tension at all times. While there is certainly a lot to soak up here in the photos, we would at least like to draw your attention to the bow-like frame suspension (in red, near the gas tank), which arcs across the length of the Legacy. The rest of the Bienville Legacy motorcycle is unlike anything else on the market, which should surprise no one considering its source (Nesbitt) and the fact that Bienville is setting out to make commissioned bespoke machines for its patrons. Working now out of his own shop, Bienville Studios, Nesbitt has produced the first of his ultra-premium, tailor-made, American-born motorcycles, dubbed the Bienville Legacy.īeyond the radical lines, there is the familiarity of things like the Wraith’s carbon fiber girder front-end style, the Motus MST’s V4 engine, and…that is about it. The Confederate Wraith is perhaps one of our most favorite custom motorcycles ever produced, and it happens to be the product of JT Nesbitt’s supreme imagination.