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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Sub Tank flow??
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[QUOTE="Jeremy Wilkey, post: 993355, member: 17220"] Chris, Thanks! It’s a buffer, if you want bottoming control only then a check valve or not and it does not matter. But if you want bottoming control for landings and a more linear air spring (less resistance/progression) for bumps then doing a check valve does allow the tank to buffer. As for a problem with the rebound, its not. We still have a significant positive pressure both in the main fork and in the tank as the fork starts to rebound. If the tank held more volume than the forks then we would have an issue but as it is we are no where near a threshold. (A point where there is no positive pressure in the main fork (relative to atmospheric)) Subtanks generally work better with tighter settings not so much for bottoming control but for breaking bump performance. I never run mine softer than 3 out as that will start to make the pressures equalize too fast, and the braking bump performance will go down, more than bottoming control will be lost. I like larger tanks in all applications. Even in small air volume forks like Showa or KYB TC forks the larger tanks seem to work better than the smaller ones. So having worked through all these tendencies I can comfortably say I understand, and have experienced how the system works, a check valve system will reduce the effect of the buffer and that’s the main attraction for those of us wanting the best balance of plush while deep in the stroke and bottoming control. As for the orifice size deal that’s why I think a lot of these check valve tanks work, the restriction is in the hole size so whether we have a check valve or not we have so much drag it does not matter. That’s just an educated guess. I know the Enzo was the first, the predicted results match the design theory and as we change variables in tuning they match the equation so I'm comfortable with everything. BR, Jer [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Sub Tank flow??
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