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Old 15-Jun-2005, 15:04
Gizmo Gizmo is offline
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Quote:
Originally posted by JPM
I'm guessing all FS bikes these days do this, but my last MTB was FS and the rear end pivot point was such that as you pedal it pushes the swingarm towards the group thus applying more force to dig in when pedaling

Theres a load of different theories/marketing BS about pivot placement and axle path. On a single pivot bike the closer the pivot to the crank the more active the suspension will be. I've got bikes with slighlty different pivot locations and using an identical shock setup you can feel the difference when you ride.

The new breed of platform shocks with valves that remove low speed pedalling forces has allowed designers to make a more active system which pedals well, reacts to bumps and gives good traction. Technology came from those big 20 inch plus travel baja race buggies where they need the travel but it causes problems on the flat with chassis roll.

once you get into linkage designs like Santa Cruz'es Virtual Pivot Point it gets way more complicated, becuase it uses the movement of a virtual pivot and the effect it has on chain to improve traction, well thats the markeitng BS anyway
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