Dave Weagle’s SPLIT PIVOT Suspension System Awarded Patent

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Dave Weagle’s SPLIT PIVOT Suspension System Awarded Patent

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Split Pivot is the world’s first patented Concentric Drop Out Pivot Suspension system.

On May 18, 2010, Dave Weagle, the creator of the World Champion and internationally acclaimed dw-link suspension, and the DELTA System was awarded US Patent 7,717,212 for his SPLIT PIVOT concentric dropout pivot suspension technology.

Dave had the following to say about the patent being awarded: “Wow, what a trip this one has been. Since I launched the existence of this design publicly in May of 2007, I’ve been inundated by requests from bike brands interested in partnering up to develop new Split Pivot frames. I feel like I’ve chosen some great brands to welcome into the Split Pivot family, brands that have their own individual flavor and ideas, and who really complement each other. It’s been a crazy ride getting the Split Pivot design to this point, and I’m thrilled for my partners to finally be able to show off that patent number proudly on their bikes. We’ve been testing prototypes from different brands for some time, and I know the member companies of the Split Pivot family are excited for the world to see the benefits of our collaborations and hard work. We’ve discussed, designed, tested, and refined, and we feel like the bikes that we’ll be bringing to the market with Split Pivot technology showcase a level of suspension refinement that riders of any skill level can appreciate on the trail. It’s has been so difficult keeping the existence of new prototype models secret for so long so I am glad that part is nearly over and that it’s time for the world to see how good this design can really be when dialed in. I think that riders are really going to enjoy this system. It allows for atypical main pivot placement that works great for acceleration and bump absorption, and the concentric dropout pivot lets me tune braking forces and leverage ratios to a high degree at the same time. Basically the Split Pivot design helps us to make bikes that are a lot of fun to ride.”

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What is SPLIT PIVOT?

Split Pivot is a patented suspension system for high performance bicycles, where traction, efficiency, maneuverability, and frame stiffness are important factors on the track and trail. Split Pivot’s [concentric dropout pivot], a pivot at the rear wheel axle joining the seatstays and chainstays on a bicycle, is the heart of this new design. Shaped by Dave Weagle’s competition proven engineering and testing process, each unique Spilt Pivot frame is engineered to combine the best performance traits of single pivot and long arm linkage suspensions. Split Pivot is all about having fun on the trail, and each unique suspension layout is designed to offer a ride that will make you smile no matter what your riding style or ability level.

How does it work?

Split Pivot’s [concentric dropout pivot] design separates acceleration forces from braking forces in the suspension. The system reduces excess suspension reaction to acceleration forces, and at the same time reduces excess reaction to braking forces. Braking neutrality can be tuned independently of acceleration characteristics, and suspension feel can be tuned by varying leverage ratio curves in a wide range of options. It’s no secret that mountain bikers like individuality, and the Split Pivot design lends itself to a wide range of different looking and performing designs. With so many possible mechanical layouts, not every Split Pivot bike looks or performs the same. Shock layout can be vertical, horizontal, floating, or even driven by a rate modifier link. This variability lets Dave tune the suspension performance and feel to each manufacturing partner’s preference, giving each Split Pivot bike its own personality unique to each brand.

Split Pivot bikes are tools for having fun, and each is carefully engineered to offer a ride that will make you want to be on your bike more often.

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Currently there are six licensees of the patented Split Pivot technology worldwide. 2011 Split Pivot models will be available in late 2010 from four USA and International brands. Two of the six brands have already announced their collaboration with Dave Weagle and Split Pivot.

Seven Cycles, one of the world’s premier custom fabricators, will be offering a full line of Split Pivot suspension frames, including the world’s first ever custom suspension kinematics. A product of Seven’s leadership in custom bike fit and design and Dave’s work in human ergonomics and suspension tuning, each Seven Split Pivot frame is custom tuned to accentuate an individual’s specific riding style, ability level, and body type.

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Legendary East Coast brand Spooky Cycles will be offering two models in 2011, a downhill race model reviving the Project X moniker and a 145mm trail bike for aggressive XC called Mothership.

Eurobike and the UCI World Championships will see the launch of full Split Pivot MTB lines from two highly respected International mountain bike brands that have yet to be announced.

Weagle to date has designed some of the most race proven bicycle suspensions on the market, and it is expected that Split Pivot will see the same pedigreed success as its predecessors. Riders can learn more about the Split Pivot design, and those with too much time on their hands can download and read the Split Pivot 7,717,212 patent, at www.split-pivot.com.

The Split Pivot design has additional patents pending in the USA, Asia, and Europe. Split Pivot, Split-Pivot.com, and Ride for fun! are pending trademarks of Split Pivot Inc. www.split-pivot.com Ride for fun!

SOURCE:

Matt DeLorme, Split Pivot

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  • Dan says:

    Interesting if one can make it work wit 142×12 dropouts (X-12 and Shimano’s E-thru). We do not need another hub standard in addition to those two.

  • Greg says:

    How is this different than what Trek/GF is doing?

  • Dan says:

    >How is this different than what Trek/GF is doing?

    It’s patented, I guess.

  • Dopepedaler says:

    A better question is….is Trek/GF now infringing on this patent or are they one of the 6 collaborators?

  • Brian says:

    I was wondering the same – how will this affect Trek’s line of full suspension bikes. I have their Top Fuel ABP and love it. Hopefully Trek is one of the collaborators.

  • Me says:

    As it says, “collaborator” in this case means they’ve agreed to license the design, not that they necessarily helped design it. I bet that Trek/GF ends up fighting this. DW can apply and be awarded all the patents he wants (as he should), but he has to have the financial muscle to file suit if abusers don’t pay-up voluntarily.

  • Steve says:

    I don’t see DW-Link printed on any Giant bikes, you can bet you won’t see “Split Pivot” on any of the Trek/GF bikes.

  • Dopepedaler says:

    Agreed…somehow I don’t see one of the largest bicycle manufacturers being too keen on having a “licensed” aspect to a key component of their full-suspension overhaul. Also, which came first? Did Trek “appropriate” this from Weagle or did Weagle get the patent in first?

  • Cory says:

    Trek had this way back in 2007 when they came out with the 2008 models. I think trek is really going to fight this one….

  • Disco says:

    Yall would be surprised how easy it is to move a bearing or retainer around and patent a “new” design. This is a simple faux bar like Kona’s with more chain induced platform and no brake jack due to the pivot being level to the chain stay (though not in it like FSR ;-), Trek’s design flats the shock mount to better isolate and make the travel more active. Seriously though kids, bikes are not this complicated; a decent single pivot (like Haro’s) will go the distance and not break the bank.

    Just ride.

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