Power Meters / Powermeters (SRM, Powertap, Quarq, Ergomo, Vector, Stages, power2max, P2M, 4iii, InPower, Cinch)

Etap.

LOL. Yes, but no.

They are different spiders, the 3df/3d+ one won't fit on a 3d one. I accidentally tried this last week, as I picked up the wrong one and it was obvious immediately.

OK. Shame, thanks.

The Time Machine has been running a 30mm axle in a BSA shell, with Di2 cables in there from day one. It does work.

30mm axle in a BSA shell, with Di2 cables in there from day one. It does work.

How? If the shell is bored to the major diameter of the threads, there's 2.4mm of radial clearance to accommodate a 2.7mm thick wire.

Because the middle of the shell is bored to a larger dimension, I'd assume.

Don't discount the power of magnets.

Because the middle of the shell is bored to a larger dimension, I'd assume.

That would look pretty weird, and seems unlikely on a steel bike. Doesn't help @skinny because the classic P2 (I'm assuming that's what his enquiry relates to) has a normal (i.e. straight walled) metal insert in the shell.

magnets

How do they work?

Seriously though, how is it done?

It would be a bit odd, but it's the only way I can see it working unless the Di2 cable has a thinner cable spliced into the middle of it (also possible). The more fundamental issue with passing Di2 cables through the BB shell of a P2 is the fact that (if I remember correctly) there are no holes in the P2 BB shell for the cables to pass in and out of. This of course could be remedied by the use of a drill, but even I wouldn't really fancy that - not unless it was up through the bottom of the BB shell and then up into the seat tube, which wouldn't be so bad.

There is clearance but the wire does not just sit against the wall and there isn't enough clearance for a wire and a youghart pot to hold wire against wall. So the wire rubs bacause doesn't follow the curvature of bb shell.
Not for p2. See my post on other thread. Steve Irwin says how it done.

What crank arm length?

My rotor 3D P2M is the standard 24mm, and 165mm. If Yours happens to be 165mm maybe we could sort a swap of sorts. Apart from needing a New BB. It doesnt really affect me.

I ride 175. My legs properly come up to your neck! ;) thanks for the thought.

That would look pretty weird, and seems unlikely on a steel bike.

Turns out Paragon Machine Works do this with their steel BB shells. The inside of the shell is larger than the major diameter of the threaded part.

http://www.paragonmachineworks.com/images/Drawings/BB0001.PDF

You might have missed a trick by discounting external cables so quick.

Look at all the trip socks, suits, etc. Maybe with tuned external cable placement you could actually improve the aerodynamics?

runs off to reinstall Di2

The inside of the shell is larger than the major diameter of the threaded part.

Even with that relief, there's only 2.65mm radial clearance :-)

Yeah, but wires are squashy, aren't they.

175mm will scuff my saddle.

My P2m came back and gave me 20w on my FTP. I dont really want to part With it*.

So cool.

(*I had also just finished my build period. But still)

Ha! Quite possibly!

had also just finished my build period.

That's a new one. "Sorry love, not tonight, I'm having my build period".

Don't discount the power of magnets.

Defo need a T shirt with that on.

Having the decorators in cant compare to having the Builders in........

Powertap users.

Is there a compatable replacement freehub?
One from say Novatech?

I need an XD driver to run 1x11 Sram on my G3 MTB hub. They are mad expensive, and Paligap wont even sell me one of the alu ones. Buying a $180 freehub from the US, then paying mad postage, then paying mad import fees........NOOOOOOOO!

You need one of these.