Jeremy Wilkey
Owner, MX-Tech
- Jan 28, 2000
- 1,453
- 0
Hey all Chad Newton From total control had the jump start this year on the 2002 models. We got to take a look at the new 2002 YZ forks. Here is the early report on the new "dual" piston midvalve.
The first image is of the compression side of the midvalve. The old part on left the new part on the right. The changes should acomplish a few things. By reducing the total flowable area the stack will be more sensetive to lower speeds. The fluid veolicty will be higher and the stack if float was reduced would ebcome more easily modulated.
Total deflection should decrease however the actualfeed port area has increased so velocity should be lower on high speeds. (this is good) We are getting more low speed control and less highspeed damping .. very cool.. Take on thing into consideration this is only from a quick overall perspective, deflections are rather large in a midvalve so the spefics become somewhat muddy, obvously real testing will provide a wealth of new information.
The first image is of the compression side of the midvalve. The old part on left the new part on the right. The changes should acomplish a few things. By reducing the total flowable area the stack will be more sensetive to lower speeds. The fluid veolicty will be higher and the stack if float was reduced would ebcome more easily modulated.
Total deflection should decrease however the actualfeed port area has increased so velocity should be lower on high speeds. (this is good) We are getting more low speed control and less highspeed damping .. very cool.. Take on thing into consideration this is only from a quick overall perspective, deflections are rather large in a midvalve so the spefics become somewhat muddy, obvously real testing will provide a wealth of new information.