Q45 Seat Post Swap?

[Mrnelson]

Anyone with the pre - 2021 Q45 want to swap seat posts? The angle on the new version makes it impossible to lean the seat back more than approx 45 degrees whereas I'm told the old ones could get me to my desired 30 degrees.

Evidently many owners of the older one were disappointed that they could not get more upright so perhaps we can make it work out for both parties?

 

[billyk]

I have a first-gen Q45. Possibly interested in a swap. Can you post photos showing the angle and shape?

Also the mounting system at the top; I need to be sure it will replace my present one, which is connected by some custom-bent pieces to a Thor seat. What's the length of the horizontal tube that carries the long bolt to hold the U-shaped piece (with multiple holes) that connects to the seat?

I've seen theses discussions and looked at the photos but not been able to really see the difference. Is the new tube straighter?

Or we could have this discussion by PM.
I'm in Seattle, btw.

 

[billyk]

Now I see the detailed description in Robert Holler's post. But a photo would help.

I'll have a look at my bike in daylight with this in mind.

 

[Mrnelson]

Sure, I'll post photos tomorrow. According to Robert they're completely interchangeable. The difference is the angle of the bend and the length, which makes the current piece (the 2021 seatpost that I have) make a more upright and stable seating position than the older version (presumably, yours).

Thanks, I'll post and we can talk.

 

[cpml123]

Now I see the detailed description in Robert Holler's post. But a photo would help.

I'll have a look at my bike in daylight with this in mind.

Billy, if you want to look at one for reference in person, I live in Sammamish, in case it helps.

Michael

 

[Tortue]

I can zip over today if you're around.
Call me

 

[Mrnelson]

Hope these help.

 

[billyk]

Hope these help.
View attachment 10974 View attachment 10975
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Oh my. That's terrible! I had no idea. No way would that work on mine.

I measured my post (pic). It's 14 inches from the bottom end to the bend (new one is 10), and 18 inches overall (new one is about 14). A completely different beast.

It would "support" my seat way, way lower, and I'd wonder if leaning back would over-stress the fiberglass.

Sorry, I can't trade. Good luck.

I did not remove it from the bike for the photo, but measured from the hidden end (zero on the tape), which was easily felt by reaching inside the frame tube.

 

[Mrnelson]

Got it, thanks. I'll be looking for another solution.

 

[benphyr]

Got it, thanks. I'll be looking for another solution.

Please note that @billyk has an aftermarket seat so your idea may work with the Cruzbike seat. You would need to hold it up alongside the other model for comparison.

 

[billyk]

Please note that @billyk has an aftermarket seat so your idea may work with the Cruzbike seat. You would need to hold it up alongside the other model for comparison.

Yes, thanks for noting this, which I forgot to point out above. (On the other hand, the Thor seat is a great upgrade re recumbent butt, at least for my very upright seat angle).

 

[benphyr]

Yes, thanks for noting this, which I forgot to point out above. (On the other hand, the Thor seat is a great upgrade re recumbent butt, at least for my very upright seat angle).

I look forward to a thor seat one day (soon?).

 

[jbruns8234]

What is a Thor seat? I get a sore butt after about 20 miles on my Sofrider. I was thinking of changing seat post to lower the seat angle. Would the Thor work better? Suggestions?

 

[Mathew Fy]

What is a Thor seat? I get a sore butt after about 20 miles on my Sofrider. I was thinking of changing seat post to lower the seat angle. Would the Thor work better? Suggestions?

Thor Seats and Volae seats are carbon seats shaped to fit most riders. The curved bottom end may help reduce recumbutt a little bit by distributing your weight more evenly. Tilting back can help some by getting more weight off the buttocks. This will only go so far as compressed gluteal muscles require good blood flow during exercise. Some people stop once in a while or lift up off the seat (imagine a diamond frame rider standing for relief.) Others just power through, maybe they get adapted to the position.