First Road Bike Build

[carbonazza]

I'm curious about your opinion and recommendations on Press-Fit vs Thread-Together BB86 bottom bracket shells and especially these two in particular:

• ZTTO Thread Together - https://www.aliexpress.com/item/1005005940645297.html
• Shimano Dura Ace SM-BB92-41B - About 20€ in a local shop

Which one would you pick and why?

The thread together ZTTO BBs I tried were great; however, for that price, don't expect to get quality bearings.
You can replace the bearings with better ones. However, one hard issue, especially in the DUB world, is finding replacement plastic sleeves if you crush them. I'm a tinkerer, so it's fine for me, but if you're not, I would recommend the Shimano one.
If installed correctly with a compound to help it adhere to the frame, it should be reliable for many thousands of kilometers/miles.

[jonathanf2]

I'm curious about your opinion and recommendations on Press-Fit vs Thread-Together BB86 bottom bracket shells and especially these two in particular:

• ZTTO Thread Together - https://www.aliexpress.com/item/1005005940645297.html
• Shimano Dura Ace SM-BB92-41B - About 20€ in a local shop

Which one would you pick and why?

I have both a ZTTO thread together PF BB86 on one of my road bikes and a Shimano Ultegra PF BB on my gravel bike. I actually prefer the Shimano PF BB, but I have an alloy sleeve built into my gravel bike that insures a proper fit. The ZTTO threaded PF BB doesn't have the best bearings, but there's a thread on here where people have replaced them for better quality ones.

[Txapa80]

I have been using the Ultegra press fit BB and the another kind of threaded press fit and the difference in longevity has been enormous. With the Ultegra BB the bearings failed after one year and a half with I have been using since then I installed that type on all my bikes (one gravel lightcarbon and my road bike Orro Venturi) and they never failed in 3 years.
But to be honest the brand that I use is Token and not the AliExpress version.

[ujmo_]

Thanks for the responses! I have another question - I just received L-TWOO R9 from AliExpress. Is there a way to easily try it out and test if it works as expected without having any other bike parts?

[Chiyou]

Yes, you can connect the front and rear derailleur to the battery, pair the shifters with the derailleurs and then test everything on the kitchen table. When pressing the shifter buttons, you should see the derailleurs jump into action.

[ujmo_]

Yes, you can connect the front and rear derailleur to the battery, pair the shifters with the derailleurs and then test everything on the kitchen table. When pressing the shifter buttons, you should see the derailleurs jump into action.

Thanks. However, I don't have eR9. Only hydraulic R9

[Chiyou]

My bad! Yes, in that case there is no meaningful way to check whether the components are working correctly off the bike.

[ujmo_]

I’ve got some questions regarding cables. I’m not really sure what to get. The L-TWOO R9 already has some cables included - there are cables+housing connected to both breaks and cables connected to shifters(see attached picture).
Do I need to get just one pair of housing for shifting cables? If you have any specific suggestions on what to get, please let me know.

[chughes]

@ujmo_ how is your build? Any pics?

[ujmo_]

Hey, I haven't built the bike yet since it's still pretty cold in here. I'm planning to build it in March so it's ready for start of the season in April. I think I already got almost all the parts. Currently I'm deciding which bottom bracket I should get, three options I'm considering are:

• Shimano SM-BB72-41B - I can get it for about 20€
• Shimano SM-BB92-41B - I can get it for about 25€
• Token Ninja Zenith BB841T-41 - I can get it for about 50€

How is your experience with creaking and longevity when using regular pressfit from Shimano compared to thread together from Token Ninja. Is it worth the extra money?

[electrolux]

Hey, I haven't built the bike yet since it's still pretty cold in here. I'm planning to build it in March so it's ready for start of the season in April. I think I already got almost all the parts. Currently I'm deciding which bottom bracket I should get, three options I'm considering are:

• Shimano SM-BB72-41B - I can get it for about 20€
• Shimano SM-BB92-41B - I can get it for about 25€
• Token Ninja Zenith BB841T-41 - I can get it for about 50€

How is your experience with creaking and longevity when using regular pressfit from Shimano compared to thread together from Token Ninja. Is it worth the extra money?

The ZTTO thread together BB worked pretty well for me, I had about 2000km on it before the bike was stolen.

Velobuild frame had a creak so I wrapped the BB in PTFE tape for a tighter fit.

 https://www.aliexpress.com/item/33023047002.html?

[coffeebreak]

• Token Ninja Zenith BB841T-41 - I can get it for about 50€

How is your experience with creaking and longevity when using regular pressfit from Shimano compared to thread together from Token Ninja. Is it worth the extra money?

I have the thread together BB386 version of Token Ninja and its been fantastic. It went on my Velobuild GF002. I spent $55 USD on it back then and have put close to 6000 miles/10k km on it and no creaks, nothing. It is worth the price and still half the cost of Wheels Manufacturing bottom bracket which I have on my latest build. When compared side by side there is absolutely no difference between two. If I had to do it again I will get the Token Ninja - it also comes with very handy (and sturdy) BB removal/installation tool that Wheels Manufacturing doesn't include.

[ujmo_]

Hey guys. I’m curious what is your view on expanders/compression plugs. Yishun provided one(see picture), but I’m unsure if it’s any good or enough, if I want to use spacers. What would you suggest?

[BalticSea]

Hey guys. I’m curious what is your view on expanders/compression plugs. Yishun provided one(see picture), but I’m unsure if it’s any good or enough, if I want to use spacers. What would you suggest?

Doesn't matter if you want to use spacers, they do not add pressure to the steerer tube, so they don't have to be countered by expander. Expander is used to prevent the stem from crushing the steerer tube. Unless you plan to put expanders above the stem of course, but I don't think it serves any real purpose

[ujmo_]

Hey guys, I just internally routed all the cables. When I steer to the left or right in the air, the fork swiftly moves back to center/natural position on its own. Is this connected to me doing something wrong or is it common?