Vision non series modular aero crankset BB question

Triathlon Forum
1

I just ordered a cervelo S2 that I will be using for I IM Nice 2020.
This frame has a rotor 30 BBright BB.
Can I use this BB in combination with a vision non series modular aero crankset BB386
https://shop.visiontechusa.com/en/type/cranksets/cranksets/road-triathlon-time-trial/ns-modular-compact-aero

Does anyone have experience with this crankset?

2

Yes, you should be able to use a BB386 on a BBright bike with that Bottom Bracket

I have one on my P2. However, you will need a spacer on the drive side. I don’t remember if it’s 9 or 11mm or something else. I’ll look it up.

3

Looks like 7.5mm

You’ll need this:

https://shop.fullspeedahead.com/en/bb-adapters/road/bb386-crank-to-bb-right-pf30-79mm
.

4

Looks like 7.5mm

You’ll need this:

https://shop.fullspeedahead.com/...o-bb-right-pf30-79mm

Thanks Jaretj. For my good understanding.
Is this because the spindle lengt of FSA 386 cranks is wider than the spindle length of Rotor 30 mm cranks?
I can’t find the spindle length info of rotor cranks.

5

I believe it’s slightly smaller than the rotor.

I put an BB386 on a friends P2 and didn’t initially have the correct spacer. I use one from a rotor 3d+ to BBright but was unable to tighten up to spec because the spacer was slightly bigger. Since he was using the bike on the trainer we went with that for a week until I got the correct one.

6

I believe it’s slightly smaller than the rotor.

I put an BB386 on a friends P2 and didn’t initially have the correct spacer. I use one from a rotor 3d+ to BBright but was unable to tighten up to spec because the spacer was slightly bigger. Since he was using the bike on the trainer we went with that for a week until I got the correct one.

To make it more complicated it seems Rotor had in the past on PF30 bottom bracket for all 30 mm press fit standards (PF30, BBright , 386 EVO) and differenct spacer kits to take up the difference in the width.

Today it seems Rotor has multiple BB’s compatible with BBright
-PF30 like in the past
-universal BB UBB4630 - screw together type
-UBB4630 BBRight
-UBB4630 386

My god what a mess
I have spent 3 hours of my life into this and it is still a gamble

7

I have installed a Lightning BB386 crank on to a BBright frame. So, your vision crank should work; it just depends on how many shims you need on either side to make it work (as other people have commented on above). In my case, I only needed to fiddle with the threaded ring on the NDS crank to take out all the excess play.

8

The Vision Modular Aero crank will fit your bike with the correct BBright to 386Evo adapter.

https://www.fsaproshop.com/search?q=200-0010000010

Please let me know if you have any other questions.

Kevin

9

The Vision Modular Aero crank will fit your bike with the correct BBright to 386Evo adapter.

https://www.fsaproshop.com/search?q=200-0010000010

Please let me know if you have any other questions.

Kevin

Hi Kevin,

Thanks for replying. I do have a quesiton regarding this crankset.
If I ever want to change the chainrings on this crankset, what type of rings do i need? (both inner and outer)

10

This crank does use specific chain rings that you would be able to order directly from us. They are 110 BCD aero chain rings.

Kevin