Where to find this seatpost? Di2, 25.4, -ve setback

bikingjohn

I've made an impulse decision to participate Ironman 70.3...

Now I want to transform my only bike available (CAAD12 Disc) to Di2.

The problem is that I couldn't find any 25.4 seatpost with Di2 battery holder...

FSA SL-K ITC has -ve setback and Di2 batt holder, but doesn't have 25.4.
Cannondale C2 Di2 doesn't have zero setback...

On the other way, as I'm using Cannondale C2 zero setback, is there any Di2 holder compatible with my seatpost? Thanks.

trailflow

Wrap the Di2 battery in foam and leave it at the botom of the seat tube. It's not really necessary to fit it into the seatpost.

janwal

Why not use the external battery holder and use what seat post you want?
https://www.merlincycles.com/shimano-di ... 0wodjf0DCw

trailflow

janwal wrote:

Why not use the external battery holder and use what seat post you want?
https://www.merlincycles.com/shimano-di ... 0wodjf0DCw

1. It's ugly.

2. That mount would require a new battery and (i think) a new charger.

As long as you wrap the internal battery well to stop it rattling and tape up the ends to add some waterproofing. It will be fine inside the seat tube.

bikingjohn

trailflow wrote:

Wrap the Di2 battery in foam and leave it at the botom of the seat tube. It's not really necessary to fit it into the seatpost.

that's good idea!

Now i need to think of the BB cover to route the Di2 cables in the BB area...

imatfaal

bikingjohn wrote:

On the other way, as I'm using Cannondale C2 zero setback, is there any Di2 holder compatible with my seatpost? Thanks.

I think the battery just fits in that seatpost - at least the most upto date versions

http://www.sigmasport.co.uk/item/Cannon ... -2016/9GFY
SEATPOST: Cannondale C2 UD Carbon Di2 Battery 25.4x300mm (48-51) 350mm (54-61)

I am really hoping it fits in mine when it turns up:-)

By the way there is a new Shimano Di2 battery on the way that will also include control functions and really open up fine control of shifting (ie one lever controlling both derailleur etc - like XTR has). If you are not in hurry might be worth waiting a month or two - it is the same dimensions as present internal

bikingjohn

imatfaal wrote:

bikingjohn wrote:

On the other way, as I'm using Cannondale C2 zero setback, is there any Di2 holder compatible with my seatpost? Thanks.

I think the battery just fits in that seatpost - at least the most upto date versions

http://www.sigmasport.co.uk/item/Cannon ... -2016/9GFY
SEATPOST: Cannondale C2 UD Carbon Di2 Battery 25.4x300mm (48-51) 350mm (54-61)

I am really hoping it fits in mine when it turns up:-)

By the way there is a new Shimano Di2 battery on the way that will also include control functions and really open up fine control of shifting (ie one lever controlling both derailleur etc - like XTR has). If you are not in hurry might be worth waiting a month or two - it is the same dimensions as present internal

I will definitely wait for the latest one BT-DN110.

http://productinfo.shimano.com/#/lc/1.5 ... _spec/2x11