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 Post subject: Di2 battery on tri-bars
PostPosted: Fri Aug 02, 2013 8:31 pm 
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Joined: Thu Jul 11, 2013 7:54 pm
Posts: 49
I'm considering fitting Di2 to my P3. I don't like the downtube battery mount so wondered if I could hang the battery between the tri-bars, swapping the A- and B-junctions over (I could position the junction A on the chainstay) to save on those expensive wires.
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With a proper tube clamp and not the 'Heath Robinson' arrangement here, I reckon it'll work. My question is, why have I never seen anyone else do this? What am I missing? To me, there is little aero drag induced by this as the flow will already be turbulent by the time its gone over my hands and G500!

Dave


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PostPosted: Fri Aug 02, 2013 10:12 pm 
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Joined: Sat Jun 13, 2009 4:02 am
Posts: 1955
Location: NoVA/DC
The main difference in swapping junctions is where in the chain the battery is. I don't know what the ramifications are of having the battery before the front junction. If I was going to do something semi-custom on a p3, I'd put the battery behind the seatpost clamp, right above the rear brake. Could improve aero there.

Sent from my EVO using Tapatalk 4 Beta


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Posted: Fri Aug 02, 2013 10:12 pm 


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PostPosted: Sat Aug 03, 2013 7:24 am 
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Joined: Thu Jul 11, 2013 7:54 pm
Posts: 49
True, but how do you run a wire to it? Would you have to run it on the outside or drill?


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