Like all things, there are pros and cons to each design, especially when you factor in how the vehicle will mainly be used (street vs off road), ride comfort and lifespan of the shock. You only spoke to the benefits of monotube and not the cons of monotube or the benefits of twintube. There is a reason 99% of all vehicles come with twintube shocks. If monotube were always best that would not be the case. For pure off road, yes the monotube is probably best but as we all know people do not drive purely off road. For the average truck owner who only does some very light off road driving on occasion and who wants the on road benefits of twintube, the twintube may be the better shock choice.
Well the reason the oil foams is because the fluid pressure falls below the vapor pressure at that specific temperature, thus the fluid cavitates aka creates cavities aka foams
Monotube shocks will always be the better choice when performance is a concern. With a monotube shock, you will not experience the fading from heat and fluid aeration like you will in a twin tube shock. A twin tube shock may give you a softer ride than a monotube but this is only due to the twin tube's lower dampening ability.
In theory is true what you say. If you try both you will understand that monotube is more comfort because absorbing is related to force. But in theory it should be the twintube more comfort. Independents of the car as well and what brand absorbers you will buy.Bilstein from my experience are the top of all but that doesn’t mean we need this kind of quality in all cars.
@@ioannisstavrou2677 I think in general a twin tube is much nicer upon intimal dampening, but then it just gets harder really quickly. I think the monotubes comparatively harsh initially , but then seems to not ramp as hard. Bilstein monotubes generally run really high gas pressure compared to twin tube manufacturers. His example with the twin tube also shows the cavitation without air pressure. Add air pressure and the fluid stays more normalized. Both set ups can be great. I personally prefer monotube for fluid volume for simplicity and reliability. I think Koni offers excellent products, but a well designed TT or mono should provide a great user experience for a variety of people. Both technologies have merit.
jinxtacy this is not exactly correct of what you say but I like your explanation. And of course mono tube for me as well much better than twin tube covering all the situations of road driving!!
@@jinxtacy Is there any chance for a twin tube shock absorber to be very stiff due to a higher compression or damping force causing a terrible ride? Is a shorter coil spring an option for a better ride to a stiff twin tube shock abrorber?
Using air for demonstration, but Nitrogen gas is normally used, which Nitrogen GAS is 78% of the air you are breathing right now. Nitrogen is just 21% oxygen and the small amount of moisture removed from AIR.
This demo is purposely misleading. He's telling as fact, that my Bilstein B4, which is a twin tube design does not have nitrogen gas pressurized in the reserve chamber? But yes, at one time twin tubes were not gas charged. But modern twin tubes are gas charged.
This comparison is between a Bilstein monotube and a standard economy twin tube oil shock. There is no attempt to be misleading about the differences between them, the Bilstein B4 are offered as gas charged and they may be a twin tube or a monotube but they are not mentioned in this video.
@@Truckspring The claim of yur video is saying twin tubes are prone to hydraulic fluid aeration, as they are not pressurized with gas like the monotubes. That generalization implies that all twin tubes are not gas charged, which is the misleading part.
This is one of the best explanations of the monotube shock that Ive seen. really simple and effective.
Apart from the fact that it's totally misleading!
great presentation altho i'm 8 years late i do appreciate this and learnt something i was curious of
Mind blown. Thanks for the info!
Thanks for the explanation!
Like all things, there are pros and cons to each design, especially when you factor in how the vehicle will mainly be used (street vs off road), ride comfort and lifespan of the shock. You only spoke to the benefits of monotube and not the cons of monotube or the benefits of twintube. There is a reason 99% of all vehicles come with twintube shocks. If monotube were always best that would not be the case. For pure off road, yes the monotube is probably best but as we all know people do not drive purely off road. For the average truck owner who only does some very light off road driving on occasion and who wants the on road benefits of twintube, the twintube may be the better shock choice.
which is the most confortable over bad paved roads please?
@@cipriansofineti346 Twintube is more comfortable.
Bilstein are very good shocks
I like your shock.. I am also a shock manufacturers..
Looking for a smooth not firm ride on my 17 ram 1500 are they better than KYB ?
Perfect video for understanding
Cavitation is different to foamy oil just FYI.
Well the reason the oil foams is because the fluid pressure falls below the vapor pressure at that specific temperature, thus the fluid cavitates aka creates cavities aka foams
Low preassure (TwinTube) are better comfort against "pots and holes" on bad roads than High preassured (MonoTubes) or am I wrong?thanx
Monotube shocks will always be the better choice when performance is a concern. With a monotube shock, you will not experience the fading from heat and fluid aeration like you will in a twin tube shock. A twin tube shock may give you a softer ride than a monotube but this is only due to the twin tube's lower dampening ability.
In theory is true what you say. If you try both you will understand that monotube is more comfort because absorbing is related to force. But in theory it should be the twintube more comfort. Independents of the car as well and what brand absorbers you will buy.Bilstein from my experience are the top of all but that doesn’t mean we need this kind of quality in all cars.
@@ioannisstavrou2677 I think in general a twin tube is much nicer upon intimal dampening, but then it just gets harder really quickly. I think the monotubes comparatively harsh initially , but then seems to not ramp as hard. Bilstein monotubes generally run really high gas pressure compared to twin tube manufacturers. His example with the twin tube also shows the cavitation without air pressure. Add air pressure and the fluid stays more normalized. Both set ups can be great. I personally prefer monotube for fluid volume for simplicity and reliability. I think Koni offers excellent products, but a well designed TT or mono should provide a great user experience for a variety of people. Both technologies have merit.
jinxtacy this is not exactly correct of what you say but I like your explanation. And of course mono tube for me as well much better than twin tube covering all the situations of road driving!!
@@jinxtacy Is there any chance for a twin tube shock absorber to be very stiff due to a higher compression or damping force causing a terrible ride?
Is a shorter coil spring an option for a better ride to a stiff twin tube shock abrorber?
Good Stuff, Great Tips👍🏿😀
Thanks for verifying that what the manufacturer places on the vehicles are garbage quality... I am buying the B6. Cheers.
Bill-Stine
Using air for demonstration, but Nitrogen gas is normally used, which Nitrogen GAS is 78% of the air you are breathing right now. Nitrogen is just 21% oxygen and the small amount of moisture removed from AIR.
Twin tubes cane be gas charged as well
This demo is purposely misleading. He's telling as fact, that my Bilstein B4, which is a twin tube design does not have nitrogen gas pressurized in the reserve chamber?
But yes, at one time twin tubes were not gas charged. But modern twin tubes are gas charged.
This comparison is between a Bilstein monotube and a standard economy twin tube oil shock. There is no attempt to be misleading about the differences between them, the Bilstein B4 are offered as gas charged and they may be a twin tube or a monotube but they are not mentioned in this video.
@@Truckspring The claim of yur video is saying twin tubes are prone to hydraulic fluid aeration, as they are not pressurized with gas like the monotubes. That generalization implies that all twin tubes are not gas charged, which is the misleading part.
I don't think you understood the video.
So how do you pressurize the shocks that have no Schrader valve?
Drill and tap your own valve.
Bilstein bears