Clueless about mechanics! Which power2max fits this bike?

Lightning

Hello everyone,

I have a power2max on my "good bike" (been using it for a couple of years) and would like to buy one for my dedicated turbo bike. I'm really clueless about bike mechanics though, so I have no idea which one to get!

I asked this same question a couple of years ago when I bought the one I have on my good bike and the one you recommended did fit, so.. Can I have some help once again please?

The bike is like this: http://www.bikepedia.com/quickbike/BikeSpecs.aspx?year=2010&brand=Trek&model=1.2+Double

The crankset is an FSA Vero and this is all the info I found written on it (I don't know what half of it means, so I'll just write it down in case you need it):
- 50/34T
- 172.5mm
- 110mm BCD
- N10

Please let me know if you need me to look anything else up. And sorry for my cluelessness!

napoleond

The trek had a standard BSA bottom bracket. Get one that fits that.
You won't be able to use your current bottom bracket as its a square taper.

dread_i1

If it is a bsa then you can use the rotor bsa30 bottom bracket and a set of rotor 3d+ cranks, that is the setup I'm using on my genesis with a p2max classic .

Lightning

Thanks for the help NapD and dread_i1.

I'm assuming this would work then, right?

Power meter: http://www.power2max.de/europe/en/Produkt/bestsellers/power2max-type-s-fsa-gossamer-road-2-2/
+ Add a bottom bracket: FSA Megaexo bottom bracket for BSA and ITA (BSA68)

If so, that'd be awesome, as it's much cheaper than the Rotor 3D+ one (this is for a turbo bike, after all..)

dread_i1

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19696141#p19696141]Lightning[/url] wrote:

Thanks for the help NapD and dread_i1.

I'm assuming this would work then, right?

Power meter: http://www.power2max.de/europe/en/Produkt/bestsellers/power2max-type-s-fsa-gossamer-road-2-2/
+ Add a bottom bracket: FSA Megaexo bottom bracket for BSA and ITA (BSA68)

If so, that'd be awesome, as it's much cheaper than the Rotor 3D+ one (this is for a turbo bike, after all..)

Yeah that should be fine.

Lightning

Awesome, thanks for the help!

IShaggy

Why a power meter for a turbo bike? Assuming constant temp and pressure speed equates to power. So all you need is a speedo and you can work out which speeds you need to target for power intervals.

Lightning

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19697621#p19697621]IShaggy[/url] wrote:

Why a power meter for a turbo bike? Assuming constant temp and pressure speed equates to power. So all you need is a speedo and you can work out which speeds you need to target for power intervals.

That's what I've always done, but it has a few disadvantages. To name a few relevant ones, at least for me:

1. It's not that accurate (although it is consistent) so I need to keep track of 2 numbers (one for the road and one off).

2. I keep track of CTL/ATL/TSB so it's much easier if I can just upload my ride (with actual power) and get it over with.

3. Occasionally, my "good bike" ends up broken somehow and I have to take it for repairs (which always takes at least 1 week unfortunately), so I use the turbo one on the road (with no power meter). That means I sometimes have to train without power and without keeping track of my data, which is annoying.

schlepcycling

Is there a reason you can't switch your existing power2max to your other bike?.

Lightning

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19698933#p19698933]schlepcycling[/url] wrote:

Is there a reason you can't switch your existing power2max to your other bike?.

I run a 53x39 on my outdoors bike so I don't really know if it would be possible, but even if it were, the frame is different so I'd still need to buy stuff. Even worse than that would be all the time/sanity I'd lose swapping them during the weekdays..

StillGoing

If you're running Aero Q rings at all with the 110bcd, you'll need to go for the Type S or have to make a cut out in the Q ring.

The prices of P2M power meters are so good at the moment, the world really is your oyster with a BSA BB.

schlepcycling

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19699374#p19699374]Lightning[/url] wrote:

[url=http://www.bikeradar.com/forums/viewtopic.php?p=19698933#p19698933]schlepcycling[/url] wrote:

Is there a reason you can't switch your existing power2max to your other bike?.

I run a 53x39 on my outdoors bike so I don't really know if it would be possible, but even if it were, the frame is different so I'd still need to buy stuff. Even worse than that would be all the time/sanity I'd lose swapping them during the weekdays..

The reason I ask is that I regularly switch mine between 3 different bikes 2 are Shimano equipped, one 10 speed, one 11 speed and my other bike is Campag equipped 11 speed and I've not had any issues running my power2max with any of these set ups. As for changing it over, takes about 5 minutes as long as you have the right BB on each frame it's not a problem to switch the chainset between bikes.