This allows the suspension to be much more active over lowspeed impacts, allowing more traction. Basic designs we covered some basic concepts and definitions in our first suspension 101 article, so you should now know the difference between a full suspension and a hardtail, and you should have a pretty good sense of the amount of travel you want in your bike now we delve into suspension design, and how different companies try to achieve the holy trinityhow to. This unique layout aligns suspension forces in the most. Path analysis a bicycle rear suspension analysis method pdf. The idea is to trace the paths actually traveled by the centers of the birdcages during chassis roll.
Several unused calculations are omitted to increase speed even more. The banshee is more bomber though and easier to maintain. If you draw a line through the two sets of pivots, the point at which they cross. The dwlink design is engineered to balance the effects of acceleration and braking forces in order to improve traction and efficiency. Notable brands that use dw link include pivot and ibis, and the design is known for a solid pedaling platform with more antisquat early on in the travel.
Why dave weagles mtb suspension designs are so prolific. Dave weagles dw link suspension system may be the single most significant advancement in bicycles since the advent of suspension in the early 1990s. Acceleration efficiency, traction on climbs and in corners, bump absorption, pedal feedback, braking influence, frame strength and stiffness, frame geometry and frame manufacturability are all factors that must be considered during the development of a suspension system. Structural superiority dwlink uses short, stiff links, and a triangulated rear swingarm. Why the dwlink suspension is the best performing suspension system in the bicycle world. Newtons 3rd law states that every action has an equal and opposite reaction. The objective of the masters thesis is to develop a multilink suspension which is. The fourbar system has been used on mountain bikes since the. When a vehicle accelerates the suspension reacts typically in the form of suspension compression to a phenomenon called load. Bicycle suspension is the system, or systems, used to suspend the rider and bicycle in order to.
The dw link is the only design on the market that is able to control unwanted bob and still remain active in more gear combinations than any other design. Posted 9 years ago viewing 40 posts 1 through 40 of 49 total. Banshee employs their own suspension design called the ks link. The virtual pivot point or vpp and the dw link are variations on the four bar, and both fully independent systems use twin links to isolate the rear end. Widely heralded by professional racers and everyday riders for its performance traits, the dw link actually accomplishes what other suspension systems have pretended to do for years. In a fourlink suspension with a solid axle, the lateral force acting on the wheel in the top view must react as tension and. A link suspension system according to the present invention is embodied in a bicycle 10. The dwlink uses antisquat to eliminate suspension bob. Squat is defined as the tendency of rear suspension to.
Dave weagles dwlink is another fourbar suspension system with two relatively short links, which typically co rotate. Simultaneously engineered antisquat and wheel rate curves are the mathematical formulas that make dwlink the worlds most efficient and tractionaiding suspension system. The vpp is designed to improve the pedalling performance of rear suspension, while retaining the ability to actively absorb bumps. The dwlink uses an antisquat suspension design to counteract forces responsible for suspension bob and consequently removes the need for excessive compression damping. All of the current full suspension canfields use some variation of a 2 link design, which is generally similar to a dw link or giant maestro. As the linkage is moved the centre moves, so proper geometric design not only. The cad system has many advantages compared with traditional manual design.
The closest most well known design to it is the dw link. Fyi edge bikes were designed to mimick the idrive in terms of suspension action and the first gen dw link predated them just. Pivot uses dw link suspension well let you guess what dw stands for on all its bikes. That said, the devil is in the details, and its a reasonably safe assumption that the canfields probably ride a bit different than, for example, a dw link equipped pivot. The dwlink is a subset of the common fourbar system used widely in bicycle suspension. You should draw the paths to include at least 3 of. I like that design as well and think the ones employed by ibis are fantastic. A bicycle rear wheel suspension system in which plural interconnections are provided of rear. What are your recommendations for the best suspension. In this paper, a comprehensive optimization of a double wishbone dw suspension system model is carried out using adams software. For the rear suspension there are many more possible suspension types, in. The dave weagle dw link, giants maestro or niners cva suspension are essentially very similar but their patents and marketing will tell.