https://www.aliexpress.com/item/1005008495334004.html

I have this seatpost, which states that it is both 0 and 15mm offset depending on how the clamping system is rotated. Do you think you could turn around clamp on your "offset" seatpost to achieve a similar backwards translation?

Edit: Lebie89 just beat me to the punch about the point here.

Thx! No the clamp only fits one way. I went back to page3. The 0 to the left is the same as I have (no issues). The offset to the right looks as it should look. I don't know what the heck I got 😂 Daniel says it's only 2 molds but it appears to be 3 variants.

Quote from: delarune on November 11, 2026, 02:50:57 PMThx! No the clamp only fits one way. I went back to page3. The 0 to the left is the same as I have (no issues). The offset to the right looks as it should look. I don't know what the heck I got 😂 Daniel says it's only 2 molds but it appears to be 3 variants.

On the picture, this is the old offset model which has 20 mm. The new one has a little less.

If you want the old model, you can ask to Daniel from Light Cycling.

I got this picture from Daniel this morning. He checked with the factory (which had been a good idea to do from the beginning) and "the old model is temporarily out of production". I will get a replacement shipped out to me (lead time unknown) so problem solved

Really blows my mind why to take the real offset post out of production and replace with two very similar close to 0 offset but shit happens. Thank you all for comments and support!

Quote from: benquick on November 11, 2026, 02:37:44 PMhttps://www.aliexpress.com/item/1005008495334004.html

I have this seatpost, which states that it is both 0 and 15mm offset depending on how the clamping system is rotated. Do you think you could turn around clamp on your "offset" seatpost to achieve a similar backwards translation?

Edit: Lebie89 just beat me to the punch about the point here.

would this seatpost work with the rf10?

Hi all, I've been reading this thread for a while and I'm close to ordering an RF10. I'd like a sanity check from people who've built one, and suggestions if there's a better option I've missed.

Background

I'm 189cm with long legs (900mm inseam) and a short torso. I've been riding a 2021 Canyon Endurace CF SL in size L (604 stack / 389 reach, 73.5° seat angle), and it's clearly too small for me:

• A 130mm stem with no spacers to get enough reach
• 110mm saddle-to-bar drop
• The saddle slammed all the way back on a 25mm-setback post
• The seatpost raised near its minimum insertion line

I recently had a full professional fit. The fitter added 15mm of spacers, which brought my drop to 92mm, and recommended sizing up with a taller, longer frame. The goal is to get down to about 60mm of drop.

Fitter's targets

• Frame stack: 615–620, with at least 20mm of spacers so I can have future adjustability
• Frame reach: 390–395 with a 120mm stem (405–410 with a shorter stem)
• Seat angle: 72–72.5°
• Head angle: about 73°
• BB drop: 70–73
• Tires: 700x35
• Bar: 39–40cm, about 80mm reach
• Seatpost: 10–20mm setback
• Saddle height: 830 / setback: about 120mm
• Cranks: 172.5–175

My tentative plan:

• RF10 in 610 (609 / 409, 73° seat angle, 74° head angle)
• 20mm setback post (once Daniel confirms it), FSA ACR spacers, about 30mm to start per my fitter
• FSA SMR stem, 100mm at −6°, this gets my reach with this frame at the fitter's target considering his 120mm stem recommendation
• HUDUD HB15 bar, 400x460 (79mm reach, 125mm drop)
• 105 Di2 12-speed

Questions

Is the RF10 610 a good choice for these numbers? Stack is a bit under my fitter's range, so I'll make it up with spacers. Any owners in the 59–61cm range who can share how theirs fits?

Better options? Ideally something with stack around 615–620, a 72.5–73° seat angle, a standard or ACR stem, and real 35mm tire clearance. I'd like to be sub $1000 USD for the frameset as well.

Tires and wheels: I currently run GP5000 AS 35s on Shimano Ultegra C36 (WH-R8170) wheels. I might sell the wheels with my old bike. I am new to the Chinese wheel world, and figure the Ultegra wheels would add resale value to the Canyon vs. the stock alloy DT Swiss wheels they came on + I can optimize the tire width a bit more. I'd like to stay somewhat shallow on the rims, but honestly have no clue where to start in this search. Seems like so many good options.

Thanks in advance. It's been a long search, and this thread has been really helpful.