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pastajet

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Reviewed by Brian Mullin aka Gram and MTBR.com Pastajet
https://www.gramslightbikes.com/

I have been testing the Eriksen Sweetpost on and off for almost a year now, and it has one of the most innovative clamp adjustment systems I have ever used. It is not only simple, but it makes adjusts and saddles swapping a 10-30 second ordeal. In addition, it is made of the most wonderful material for bicycles, titanium. Ahh, the exquisite silky smooth titanium, drool!

I visited Kent Eriksen's funky shop last summer, and had a nice long conversation with him about everything under the sun, mostly a titanium sun of course. When Kent gets going, he likes to talk, and his enthusiasm is contagious. Kent's knowledge and expertise with titanium are unfathomable, and I learned a lot in our brief time together. His wife, and hard core mountain bike racer Katie Lindquist wandered in during my shop tour, and she helped set up the review of the Sweetpost, thanks Katie.

He walked me through his small but well appointed shop, and showed me a very tricked out tandem bike with couplers that he was working on. The bottom tube was huge, and the tube was squished at the bottom brackets ends, very trick indeed. Everything that his shop works on is impeccability welded, bar none.



Here is where the Sweetposts are assembled. They had a wide array of colors for the clamps, and some stock sizes, and quite a few custom sizes ready to go out to customers.



Next » Installation

Here are the basic parts of the Sweetpost: a titanium tube with a welded on top tube with notches, an aluminum inside plate set with notches and a slot for saddle rails, an aluminum outside plate set with a slot for rail, and a bolt. The plates (aka caps) notches mesh into the top tube notches', giving rise to a micro adjustment system. If you play with the system a lot the soft aluminum parts can wear a bit against the harder titanium, so you may need to replace the caps at some point in time?



Installation
Installing the Sweetpost is incredibly easy, and can be done in a very short period of time. Start to perfect finish in perhaps 30 seconds, give or take. Rotating and sliding the saddle is done with a simple 5mm hex key on one side of the seatpost clamp, and small angle adjustments can be done due to the ingenious micro notch system.

Just attach the inside plates' with the notches inward, meshing with the seatpost notches, and align the plate's slots, with the slots on the top. Slide the saddle rails into the slots starting from the rear of the saddle, and push the saddle backward to a rough desired location.



Roughly center the saddle in the slots, both in rail and angle positions. Attach the outside plates with the slots inwards onto the rails, aligning them together.



Insert the bolt into the proper outside plate hole, and slightly tighten with a 5mm hex key. Slide the rail into position (fore or aft), and rotate the saddle to the desired angle, and then tighten the bolt to 12-15 NM of torque. Done! If any minor adjustments are required, just loosen the bolt and move the saddle as needed, the micro notches keep things stable so that the saddle won't flop around while adjusting or tightening.



Next » Impressions



Impressions
As I have already stated this is an amazingly easy seatpost to adjust or swap a saddle with, and you can pop out a 5mm hex key, and adjust the saddle on the trail. I tested the layback version of the Sweetpost, since I like that position on my bike, and it also gives a tad more give or flex than a straight version. I hate to call the micro suspension and silky feel that titanium gives as flex, since that always has a bad connotation. Titanium has this unique property that is simply a silky feeling to itself, so even though you can hammer on it, when needed it gives you this silky feedback that is a wonder to behold or is that beheld? It is strong and resilient!

The Sweetpost is abundant in silkiness, and was really nice on bumpy trails and when climbing rough terrain, it just took the edge off the jarring feedback from the trail. When pushed hard for a pedal to the metal session, the Sweetpost was more than stiff enough.

If you have odd size rails on your saddle, such as carbon ones, you may not be able to fit them into the tight tolerances of the slots on the clamp. It expects the standard 7mm thickness for rails. Eriksen can accommodate larger rails as a custom option. The clamp plates/cap also has a large surface area in which they hold onto the rails, giving rise to better clamp force and fewer wear and tear on the rails.

Measured Specs
------------------
Size - 27.2 x 350mm
Version - 20mm layback
Weight - 217.5 grams

Next » Bottom Line



Bottom Line
The Eriksen Sweetpost is a very innovative yet simple seatpost, that allows adjustments and swap outs to be easily be made for saddles. It is made with the usual beautiful Eriksen welds, which are works of art. The titanium gives the seatpost a wonderful silky feel, that removes the edge from rough terrain, but it still retains stiffness when required. The clamp's slot's will not fit every saddle rail out there, but Eriksen can accommodate as a custom option. The softer aluminum cap system notches may wear prematurely if adjustments are made frequently.

Thanks to Kent and Katie!

Strengths
-Ease of saddle adjustments
-Eriksen welds and reputation
-Titanium

Weaknesses
-Premature wearing of notches on aluminum caps
-Slot of clamp will not except all sized rails
-Pricey

Value Rating: 3.5 Flamin' Chili Peppers
Image

Overall Rating: 4.5 Flamin' Chili Peppers
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Eriksen Sweetpost Specs
Widths: 27.2 , 30.9
Lengths: 225, 250, 275, 300, 360 and 400 mm.
Versions: straight or 20mm layback
Clamp colors: Red, blue, green, pewter/ti, black, orange, gold, brown, yellow and pink.
MSRP:
Length Straight 20mm Layback
225-250 mm $195.00 $200.00
275-300 mm $200.00 $210.00
360 mm $210.00 $218.00
400 mm $218.00 $225.00

Eriksen Sweetpost url: https://www.kenteriksen.com/comp_seatpost.html
 

Attachments

Never having ridden one, I shouldn't judge, but this doesn't appear to be a very robust design. Without question there are other much worse seatpost designs, but for the price of this one, it ought to be bombproof and warranted forever.

Angle of the seat relies on aluminum teeth. As mentioned in the article, these teeth wear. (Bad material selection!) So the rider may be forced to overtorque the binder bolts, which may lead to damage to the seat rails.

But wait, there's more: a single bolt holds it all together. No big deal, lots of posts use only one bolt, right? -- Yes, but those other posts have a bracket underneath the saddle rails that supports the mass/load from the rider. The binder bolts just keep those saddles held down. On this design, the bolt is partially loaded in bending and in shear. Worse, the bolt is threaded into an aluminum end cap. What do we know about overtorquing aluminum threads?

Needless to say, I'm not sold by the beautiful craftsmanship. I'm going to keep riding my Thomson until i die -- it will outlast me, because it's designed right!
 
This is the best seatpost I've ever used and the only post I prefer over a Thomson. I've had mine for a little over a year and have zero complaints and zero problems. As stated in the article the adjustment is easy (better than Thomson) and the craftsmanship is outstanding. I can't comment too much on the ride quality as this is the only post I've had in my Eriksen frame, but it is quite nice. I would have no reservations purchasing one for my other bikes.
 
I cant imagine an improvement over my Thomson Masterpiece.

I also just got a gravity dropper 3" drop and a one inch increment. Way fun but heavy.

Fortunately one can use both, mounted a WTB Vigo on each depending on what I'm doing I decide which to use.
Found I use the GD more and more weight be damned its just too cool!
 
I was surprised at the reported weight -- quite a bit heavier than a thomson masterpiece post. Although the Eriksen has the anodized cap 'bling' factor, I'd rather spend a lot less money and get the trusted reliability of the Thomson Masterpiece (or the Elite, which is cheaper still).

At least with the Lynkskey Ti post you're getting a light weight post.
 
My observations were that the cap's aluminum notches 'may wear prematurely if adjustments are made frequently', during all of my saddle swap outs and minor adjustments over my 1 year time with the post everything was still fine, and no slippage has occurred. My job as a reviewer is to nit pick anything no matter how minor.

In regard to the robustness of the design, I had no issues during my testing, that single bolt is pretty darn large and beefy and the caps are not that thin. This weekend at a bike show in Colorado, Eriksen showed me a slightly beefed up cap system to alleviate any small concerns that anyone might have had.

The Thomson is a fine post, but it has none of the properties of titanium. One ride on titanium will seal the deal for feel, nothing comes close. The issue with titanium comes down to tube sizes, which are usually 27.2, Eriksen recently added the 30.9.

The Lynskey Titanium Seatpost weighs in at 214.2 grams (400mm), and uses the less robust and difficult to use yoke system. I am currently testing it also. It is a major chore to adjust and swap out saddles in comparison to the Eriksen (10-15 seconds).

I have used more than my fair share of seatposts with multiple clamp systems, and the Eriksen is fine. Is their system perfect? No, nothing is, but theirs is elegant (thks Scoty) and simple.

Peace.
 
Great post on a racing hardtail. Adds just a little "cush" for long rides. Being a bigger guy (195), I've had some slippage issues. Three times in two seasons, never during a race thank goodness, and overtightening the bolt a bit seemed to cure this.

Maybe I'll check in with Kent next week and ask about the tougher clamp.
 
I've been using Thomson posts on my hardtails and FS bikes for several years without any problems. After riding a Moots layback post on one of my hardtails, I realized there's a significant difference in ride quality between Ti and Aluminum posts. So as soon as I could afford it, I swapped out my Thomson post for an Eriksen on my IF Ti SS earlier this year. I've done numerous 50 mile rides and XC races on the Eriksen post and not one issue. The Eriksen post is easier to adjust, smooths out small trail chatter, and just looks damn sexy.

Thank you, Kent, for not settling for "good enough".
 
@Mike - you do bring up a good point about the serrated teeth on aluminum. It would probably work better without them anyway. However, I think you need to check your analysis of the loading condition of the bolt. I believe it would be only under compression / tension. And I believe that the tension load would cycle MUCH less than what you see in the more traditional posts that have brackets under the saddle. Those will be cycled with every single bump; and on some designs, with a good bit of leverage to boot.
If this single bolt is tightened corretly, the load would have to overcome the compressive forces of the bolt and the friction between the ti surfaces and aluminum caps. then it could be a shear load - but then also notice that there is a ring inside of those caps that goes INSIDE the diameter of the ti piece. These would be effective load bearing surfaces - not the bolt.
Just my opinion, but i'm pretty sure of that. Look at it again and see if you agree. Personally, I think these things are pretty cool looking. If I can get one with my spelling on it ("Erikkson") and some fine looking Norwegian colors, I'm sold!
regards,
Kurt
 
I got one because Tompson didn't do one long enough, although 2 of my other bikes have Tompson posts, and I didn't trust my RooX post (diameter was just too narrow for the seat tube, indicating quality control issues, and I managed to deform the top plate of the cradle - I did have an older RooX that was perfect for 7 years of hard XC riding).
The design is similar to the Bold cradle but the cost is more reasonable.
 
In regards to "I love this post too, but I love the original design by Albert Bold of Eastern PA a lot better. because it is HIS design."

I spoke with Eriksen, and they said...

"Actually no, it is not a copy of anyone's design, but it is showing up everywhere now, even Bontrager has come out with a similar design. We have sold the hardware to plenty of designers, and we have actually had the hardware in-house for about 5 years".

I would assume that when you start to poke around with a simple seatpost clamp design, you start to come to something like the same generic design. The current Bold design is also slightly different in its approach.
 
I have had one now for 3.5 years on two scandium hardtails. First one was geared, the 2nd a SS. For a hardtail it is just the ticket. You get the compliance of carbon without the scoring and subsequent failure potential. I don't use it on the fully, nor see the point of doing so. My typical rides range from 3 to 24 hour rides, sometimes with up to 30lbs on my back. On these longer rides with a bit of a load on the body, I have found that I don't unweight the seat as often as required due to accumulated fatugue. Therefore it takes some less than desireable weighted hits. Unfortunately, so does the posterior. I have never had the post so much as snivel, period. I have used Thompson, as well as many other designs out there. Thompsons are great, but not made of Ti, thus do not give the compliance on a hardtail. It the distances I ride, there is no room for problems. If gear does not work, it is replaced immediately. I will keep this post for life.

One final comment. There is a lot of supposition in some of the previous posts based up assumptions. While I can understand some of the concerns, especially with an Industrial Design background, they should be taked for what they are...preconcieved notions. There are plenty of satisfied riders who have actually tried the product.
 
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