How do you know this for certain?
As I said above, I haven't opened those other posts - and I can't find photos of them ripped down - so I can't confirm what you're saying. There are a lot of bicycle products that are the "same" but really aren't. If they are all the same that's great - I'm just trying to clarify why I wouldn't want anyone to infer from this teardown/ review process that because my experience with the Aeffect was 'X' that the same conclusions can be applied to any other post on the market.
For example the Brand-X Ascend XL and Aeffect 150mm posts appear identical but for the graphics but it would be very, very easy to use the same external housing with a Wintek cartridge. An example of this is the Shimano/Pro Koryak post which uses a very similar body (different post head) and the same cable actuator at the bottom of the post but the "gas/hydraulic unit that drives the post is a one-piece replaceable cartridge".
If these posts are all using the same Reverb-esque design there are also any number of cost saving choices from the quality of quad-rings/seals, to the raw materials used (aluminum, oil) or even the experience level of the assembly team employed could result in two posts of the same basic design providing very different experiences to their customers. These are all upgrades that are available from most factories.
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Hubs is a great example where I will see multiple rear hubs with various branding that are obviously from the same manufacturer, may even be from the same assembly line and they all even use the same driver design.
But, I wouldn't call them the same hubs because the quality of the bearings, for example, ranges extensively. Or one hub has cut costs by having a single bearing and a spacer rather than a pair of bearings supporting the axle at the freehub/hubshell interface. Or the identical looking aluminum freehub body on one holds up well and the other is obviously actually made of tin.
Dec. 15, 2017, 3 p.m. - Andrew Major
How do you know this for certain? As I said above, I haven't opened those other posts - and I can't find photos of them ripped down - so I can't confirm what you're saying. There are a lot of bicycle products that are the "same" but really aren't. If they are all the same that's great - I'm just trying to clarify why I wouldn't want anyone to infer from this teardown/ review process that because my experience with the Aeffect was 'X' that the same conclusions can be applied to any other post on the market. For example the Brand-X Ascend XL and Aeffect 150mm posts appear identical but for the graphics but it would be very, very easy to use the same external housing with a Wintek cartridge. An example of this is the Shimano/Pro Koryak post which uses a very similar body (different post head) and the same cable actuator at the bottom of the post but the "gas/hydraulic unit that drives the post is a one-piece replaceable cartridge". If these posts are all using the same Reverb-esque design there are also any number of cost saving choices from the quality of quad-rings/seals, to the raw materials used (aluminum, oil) or even the experience level of the assembly team employed could result in two posts of the same basic design providing very different experiences to their customers. These are all upgrades that are available from most factories. . Hubs is a great example where I will see multiple rear hubs with various branding that are obviously from the same manufacturer, may even be from the same assembly line and they all even use the same driver design. But, I wouldn't call them the same hubs because the quality of the bearings, for example, ranges extensively. Or one hub has cut costs by having a single bearing and a spacer rather than a pair of bearings supporting the axle at the freehub/hubshell interface. Or the identical looking aluminum freehub body on one holds up well and the other is obviously actually made of tin.