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Re: Replica Factor Ostro VAM
Hi everyone!

Looks like I’m finally getting my Ostro V2 from Yoho after a 2-month wait, and now I need to buy a bottom bracket, saddle, and bar tape.

I know the BB standard is T47 asymmetrical, but I’m unsure about the correct width—should it be 77mm or 79mm? Would this one work? https://shorturl.at/rRd5H
Which BBs do you guys use?

Also, are there only original Factor bar tapes available online? I can’t seem to find any replicas on AliExpress.

Lastly, I’d really appreciate any recommendations for saddles. Thanks in advance!

These are a few things you must buy if you don't want people to call you out.

1.Ceramicspeed T47A BB, it comes in anodized blue, it is solely made for factor bikes and comes default in the genuine pizza box

2. Black factor bartape. comes default in the pizza box, and it is also a really good bartape.

3. Original headset spacers set, the transition spacer has the "SLT by ceramicspeed". But you don't need to change your headset bearings to the SLT ones, as no one will be able to see your bearings.

4. Black Inc bottle cages, the titanium screws have printed "black inc" on it, will greatly reduce the suspicion, say they are complimentary from the bike shop, make it seem genuine.

5.original seat post cover that has the factor logo imprint

6. rubber grommets cover for DI2/AXS, those small covers have the factor logo imprints too.

May 27, 2025, 09:26:34 AM
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Re: Replica Factor Ostro VAM I've got a Cema T47A bottom bracket, they have only 1 size for the T47 BB.
Bartape I used Lizzard Skin and now I have Deda Elementi Perforated (quite light and still comfortable)
Saddle, I used Fiziks, SMP, Selle Italia, but now I have on the bike a Cheap Ryet AliExpress saddle because it's lighter than the big brands and still comfortable.

If you care for not being called out, do the pro tips from OralMaster, you also need Black Inc Wheels, fakes costs around 600 euro's  second hand are they going for 1500 euro's new are they the double.
Also, do not use any Chinese groupset, (LTWOO / Wheeltop / SENSAH) then you will be called out as well. At least here on the forum.

Good luck the V2 looks insane!

May 27, 2025, 09:40:00 AM
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Re: Replica Factor Ostro VAM
Thanks! I’ve noticed that many T47a bottom brackets list compatibility with shell widths ranging from 77–79 mm or even 77–83 mm (like this one: https://shorturl.at/XVylJ). The BB shell width on the Factor Ostro VAM is 77.5 mm, and I’m using a Shimano crankset, so I need a 24 mm spindle diameter.

Also, do you happen to have a link to your saddle? I’m only finding Ryet options, which look similar to Specialized.

https://www.aliexpress.com/item/1005004983345294.html?spm=a2g0o.order_list.order_list_main.21.212d1802Jcm5IW

I ordered this one in 155 width, not sure its available from this seller anymore. I swear Ive seen this saddle around for less though.

May 28, 2025, 12:27:22 PM
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Re: Replica Factor Ostro VAM
I would go normal version since the weight difference isnt worth double the money.
Beware though; at this moment it is not possible to buy the frame from RK with the “Laser” logo. So only black, white or gold logo is possible right now.

Interesting, RK said that the green one was available, which is the one I had asked about.


Thanks both for advising, normal version is what I was thinking too, especially as it's just a fun project as opposed to my main ride.

May 29, 2025, 11:06:24 AM
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Re: BUYER BEWARE – STAY FAR AWAY FROM YOHOBIKES

You don’t need a “carbon expert” to know that it’s clearly UD carbon fibre with clear coat over the top, and not painted.
There is absolutely no way to differentiate what a frame is made from, so impossible to say if it has T1100/T1000.

All carbon frames will flex to some degree if squeezed.

Suspicious of a 1st post bashing a company containing sooooo many errors.


December 01, 2025, 02:25:14 AM
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Re: BUYER BEWARE – STAY FAR AWAY FROM YOHOBIKES
Yep normal looks like the imperfect nature of UD Raw carbon underneath a gloss finish. No different than what I see underneath my Genuine SL8 and X68 (SL8)

But the “carbon expert” said it was partly painted and full of cracks 😂

December 01, 2025, 03:47:54 AM
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Re: Replica Factor Ostro VAM The bump is there for good reason - it's so you don't jam your seatpost down any further and crack the seattube where it starts to narrow.

Max insert depth is simply the point at which your seatpost hits that bump stop.

April 02, 2026, 03:14:24 PM
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Re: Replica Factor Ostro VAM if your seat post is too long, just cut it. It's standard practice. I've cut seat posts for various bikes because not everybody's got long legs.
Also, at some point, it's dead weight to have more insertion than you need.
There's also a question of ride quality. The right length of insertion (that's what she said) vs max length (virtually always what she prefers) should result in less comfort, and different ride quality. I dont think anyone ever bothered to quantify it, but intuitively, it makes sense.
Bottom line: cut the seat post, dont go inside to sand the frame so you can insert extra, extra seat post.
I use a hack saw w a cheap blade and a spray bottle to precipitate the carbon dust, and a mask. The spray bottle works better than the mask.

April 03, 2026, 04:43:57 AM
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Re: Replica Factor Ostro VAM
if your seat post is too long, just cut it. It's standard practice. I've cut seat posts for various bikes because not everybody's got long legs.
Also, at some point, it's dead weight to have more insertion than you need.
There's also a question of ride quality. The right length of insertion (that's what she said) vs max length (virtually always what she prefers) should result in less comfort, and different ride quality. I dont think anyone ever bothered to quantify it, but intuitively, it makes sense.
Bottom line: cut the seat post, dont go inside to sand the frame so you can insert extra, extra seat post.
I use a hack saw w a cheap blade and a spray bottle to precipitate the carbon dust, and a mask. The spray bottle works better than the mask.

Composite engineer here:
Btw for everyone good practice but maybe mix in a bit of soap! Works a bit better. The dust the saw produces isn’t as fine as sanding and stuff. Nonetheless you should be aware that the fine dust can end up in your skin too and produces irritation and can end up in an allergic reaction to carbon dust. When it comes to sanding please wear clothes covering bare skin, don’t touch your skin, gloves and wash your workwear! As a general advice

April 03, 2026, 09:57:49 AM
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