Campy EPS V2 Install on Cervelo S2

Discuss light weight issues concerning road bikes & parts.
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elstinnett
Posts: 4
Joined: Tue Apr 15, 2014 2:47 am

by elstinnett

I'm considering switching from Campy Super Record to EPS with the V2 power unit, but I'm unsure about mounting locations for the new power unit on my Cervelo S2. Anyone have any experience or advice for mounting location or method for the new power unit on an S2 (2011 S2)? I'll likely be upgrading to a new frame that will be more accepting of an internal battery mount.

audiojan
Posts: 778
Joined: Fri Jan 27, 2006 1:38 pm
Location: New Hampshire

by audiojan

I have no experience with the S2, but I have two bikes with internal Super Record/Record EPS. Two things to keep in mind, first, the smallest internal diameter of the seat post is usually right behind the bottle cage bosses, make sure you clear those as that is the mounting point. Second, you need to have a way to exit the frame for the charging port. I used the drain hole under the BB for my wife's Parlee Z5SLi and I used the secondary entry hole for the Di2 external battery on my NeilPryde Bura SL.
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin

elstinnett
Posts: 4
Joined: Tue Apr 15, 2014 2:47 am

by elstinnett

Thanks for the input, but unfortunately the S2 won't allow for internal mounting of the battery. I can run the cabling internally, but I will have to mount the battery somewhere externally. I'm thinking about using double sided tape and zip ties on the chainstay as a temporary solution until I choose a more EPS friendly frame. It won't be elegant, but it will get the job done.


Butcher
Shop Owner
Posts: 838
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

Under the saddle. Should fit between the rails. Can't remember the length and since mine is installed inside the frame, it's too much hassle to check.

elstinnett
Posts: 4
Joined: Tue Apr 15, 2014 2:47 am

by elstinnett

Butcher wrote:Under the saddle. Should fit between the rails. Can't remember the length and since mine is installed inside the frame, it's too much hassle to check.


That's an interesting idea. I'll have to check the length of the battery to see if that type of setup would work.

Causidicus
Posts: 325
Joined: Tue Apr 17, 2012 11:20 am

by Causidicus

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Last edited by Causidicus on Wed Jun 18, 2014 1:19 am, edited 1 time in total.

elstinnett
Posts: 4
Joined: Tue Apr 15, 2014 2:47 am

by elstinnett

Causidicus wrote:Why can't you get it in the seat tube? Looks big enough.


According to Cervelo, the battery won't fit in the seat tube. I agree that it looks like it is big enough. I haven't personally measured and I can't find dimensions online, but I'd really prefer if it would fit.

Anyone have insight into the precise dimensions on the S2 seat tube?

Causidicus
Posts: 325
Joined: Tue Apr 17, 2012 11:20 am

by Causidicus

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Last edited by Causidicus on Wed Jun 18, 2014 1:20 am, edited 1 time in total.

dayne
Posts: 30
Joined: Mon Dec 05, 2011 10:21 am

by dayne

Through the head tube is the go and mount in the down tube, just depends on your frame size.
I have done it before on bikes but you will need a special threaded cable install tool or make one.

Bph4bama
Posts: 1
Joined: Tue Aug 05, 2014 10:43 pm

by Bph4bama

Hello - I am looking to do the same thing with my S2. Did you ever figure this out? If so, what was the solution?

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