-
• #60503
Nice, not seen those seatposts before, what's going on there?
-
• #60504
It's just a simple 2 bolt seatpost, just like thomson and many others make.
-
• #60505
is it not tightened then?
-
• #60506
yes, why wouldn't it be tightened?
-
• #60507
...
The bolts come really far down and seem to attach to the post shaft, not familiar with this seatpost just the myriad of others that look like this on the right, so it looked odd to me.
If the seatpost on the right (like the majority i've seen) is loosened such as in the rare scenario the saddle has been changed, the bolts would hang down resembling the one on the left. It's not too hard to imagine, just long to now explain.
You sound like you know what it is it may be more useful if you just say?
-
• #60508
The post has a hole going straight through. A rod goes through that hole, bolts then go up to the clamp from there
USE post shows it better -
-
• #60509
Thanks, again the first time i've seen this design.
-
• #60510
You must be very young. Numerous small manufacturers have used that design since the 1990s, and there are still a few today. It has the virtue of almost zero tooling cost, since it can be made by just chopping up tube and rod stock, but other than that it's not very good; peak stress on the saddle rails tends to be high, angular adjustment is minimal and the whole shaft is usually plain guage tubing rather than having the material distributed according to the various stresses.
-
• #60511
what saddle is that?
...
The bolts come really far down and seem to attach to the post shaft, not familiar with this seatpost just the myriad of others that look like this on the right, so it looked odd to me.
If the seatpost on the right (like the majority i've seen) is loosened such as in the rare scenario the saddle has been changed, the bolts would hang down resembling the one on the left. It's not too hard to imagine, just long to now explain.
You sound like you know what it is it may be more useful if you just say?
-
• #60512
My guess a new selle italia of some sort
-
• #60513
2011+ SLR Kit Carbonio
-
• #60514
You must be vey young.
MDCC barges in in style)))))))))
-
• #60515
-
• #60516
You must be very young. Numerous small manufacturers have used that design since the 1990s, and there are still a few today. It has the virtue of almost zero tooling cost, since it can be made by just chopping up tube and rod stock, but other than that it's not very good; peak stress on the saddle rails tends to be high, angular adjustment is minimal and the whole shaft is usually plain guage tubing rather than having the material distributed according to the various stresses.
I have one on the 29er. Works for me.
But...
The upper clamps tend to be widely spaced which reduces fore-aft saddle adjustment.
Plus it clamps the rails under shear, as the clamps arent above the cradle. So it doesnt look like the beast chioce for carbon rails. -
• #60517
Nice.
1 Attachment
-
• #60518
Those tyres are insanely huge!!!
-
• #60519
i love it how tester assumes jordan is very young and after that tries to explain in a way a very young person wouldn't understand a word.
-
• #60520
I assumed he was inexperienced, not stupid.
-
• #60521
I understood! (I think)
The tube is the same thickness throughout with no butting even in areas that aren't put under enough stress to warrant it that wall thickness? -
• #60522
I understood! (I think)
The tube is the same thickness throughout with no butting even in areas that aren't put under enough stress to warrant it that wall thickness?The main point, I think, is the ease of production.
Some dont even have the fatter tube top. Just a tube with a mitered end, and a hole, cradle, clamps an bolts. All the components fit any diameter tube. So you can run off a load of diffrent lengths and sizes, without the need to diversify your hardware.
-
• #60523
I've read about weight weenies, drilling, and mitering their own integrated seatpost. To allow for a lighter clamp set-up.
-
• #60524
Say what you will about weight weenies, but the ingenuity and home brew engineering interests me.
-
• #60525
The design is one of the most lightweight and efficient designs for clamping a saddle to a bike
Tester is using a very broad brush .. In that typical Asian made posts of this design are cheaply manufactured with a constant wall thickness – same as any design of seatpost made to a price. However, like any more expensive seat post as you pay your money more manufacturing recources are employed ie. Greater varying of wall thickness and reinforcement in the clamp area’s as the cost goes up. Take schmolke’s SL post which is one of the lightest posts manufactured and one of the more expensive posts too. That is reportedly constructed with 10 layers of carbon sheets, while the clamping sections are reinforced with up to 19 layers, but the whole assembly weighs 100 grams and conforms to all current European testing standards.
The design is more compromised with regards to fore and aft adjustment then other designs and also more sensitive to saddle clamping as Smallfurry explained, but with any component it is critical to follow the saddle manufactures recommendations for the clamping torque
Don't they know NJS is no drill 4 brkzz?