I actually had 'stronger' in my post, but edited it to 'as strong as' to reduce arguments :D
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I actually had 'stronger' in my post, but edited it to 'as strong as' to reduce arguments :D
They were a great difflock in their day, but they do require a bit of time consuming and expensive blacksmith engineering to fit. I really can't see them competing with the modern Ashcroft, ARB, Jackmac type lockers anymore.
Wagoo.
I like how they operate from the vacuum pump instead of requiring a compressor.
I don't know about the Ashcroft and Jackmac systems, but MaxiDrive are superior to ARB in their ability to remain locked.
The ARB are activated by pressure and require the pressure to be maintained to keep the hemisphere locked. If you lose the compressor or rupture an air fitting/line the ARB unlocks.
The MaxiDrive on the other hand only requires the air to change but then remain locked until the mechanism is commanded to unlock.
As far as I'm concerned, the last thing you would want is to be climbing over a steep obstacle, tear out an air line and then immediately lose your locker, with possible dramatic consequences.
Much better the have a MaxiDrive which stays locked until you can find a safe place to repair the loss of air.
Diana
Thanks Vlad :)
Actually, there is no such thing as vacuum, it's technically negative pressure and dependant upon the environmental pressure around it. So you're not gaining air you have a loss of relative negative pressure. ;)
Although I thought you could have maxiDrives with either positive pressure or negative pressure to operate the mechanism and it depended upon whether you had a source of positive pressure to access.