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Interbike 2010: Morewood Debuts First Ever Eccentric Pivot DH Mountain Bike

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Morewood Bikes from South Africa had what we believe to be the industry’s first-ever mountain bike with an eccentric main pivot.

The Izimu’s totally new designfor 2011 uses a totally unique eccentric main pivot that’s adjustable with an allen wrench, providing a range of adjustments to the wheelbase/chainstay length, head angle and bottom bracket height. By simply turning the wrench, you  can run it lower, longer and slacker or shorter, taller and steeper, or anywhere in between and still keep the full 200mm of travel. It provides about 10mm difference in effective chainstay length and about 10-12mm difference in BB height. It changes the head angle by a range of 1.5 degrees, and you can set it in the slackest or steepest angle in either chain stay length.

Video of the pivot in action, pricing and more frame details behind the jump…

The end of the video shows the neutral area in the adjustment where you’re really only changing the bottom bracket height without affecting chainstay length or head angle.

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The eccentric picot will have a cover with markings for preset positions, and the frame will come with a guide that explains what each position means in terms of geometry. Of course, you can set it anywhere in between to completely customize the feel of your bike.

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The front of the swing arm is now narrower with forged front plates made on two halves then welded together. This is a change from the prior design that used two flat forged pieces connected by a third piece, which makes the new design stiffer, lighter and much smoother looking, too.

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The Izimu has direct mount brake tabs and a 150×12 rear end and comes with their standard Allen key axle, but it’ll also work with Maxle.

There will be two frame and shock options for under $2,000. Final pricing is not set.

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