I like the idea of the double spring. Springs could be doubled up or theoretically have one end softer and able to protect from small bumps as well.I don't consider myself gullible and I certainly don't have more money than brains. In fact, I generally do a huge amount of research before buying something. At an MSRP of $239, which is competitive with some other brands, this seat post may seem a bit overpriced, but for $145 I consider it a bargain. I am replacing my $20 spring seat posts because the difference is remarkable.
From a mechanical engineering viewpoint, that is callad a "progressive spring" which is often seen in conjunction with hydraulics in motorcycle front fork suspension systems dating back to the 1970'sI like the idea of the double spring. Springs could be doubled up or theoretically have one end softer and able to protect from small bumps as well.
Yes, because gas-oil struts never fail (reaching to adjust sagging office chair).I maintain that a lever actioned spring is esentially no better than a sraight spring. As a mechanical engineer, I think a adjustabe nitrogen gas or hydraulic control would be preferable for bound and rebound control to the ancient metal spring with friction control pogo stick concept. New is not necessarily better.
I rode (occasionally) with a LT thud buster in the past. It was AWFUL. No matter how much I ramped up preload, it detracted from pedaling efficiency to a gross degree.The parallelogram design of the Kinekt Body Float and the new Redshift reduce the pedaling energy loss inherent in direct vertical shock absorption setups by redirecting some of the damping effort backwards instead of down. If you ride in an athletic and hard manner you will notice a real difference and develop a preference for them. On my mountain ebike, I have a PNW dropper post with adjustable pneumatic shock built in that does a decent job but not up to the standard that my Kinekt provides on my touring bike, both of which have the same suspension parts.
Also while the redshift does contain the spring in the down tube. That also necessitates removing the tube to make adjustments. The Kinekt allows for a change of springs or adjustment of spring preload without having to remove anything. The redshift looks to be lower profile, taking up less vertical seatpost travel than the Kinekt, possibly making it a better choice for shorter riders.
Chill boys and girls. It is only a sus-seatpost. No need to get ruffled feathers over the functionality of these products.Well, thank you very much for this reply. I actually was about to ask if there is a mechanical engineer who can tell me its opinion on whether one design is better than the other.