Powermeter for Campagnolo Drivetrain

cal_stewart

Hi,

Two choices for a Campagnolo drivetrain.

Power2max S Type 4 arm or Rotor 2inpower I've discounted all others.

I can also the rotor with Q rings for around £1000 with the power2max for the same is about £1600.

Has anyone used a 2inpower as reviews are not forth coming?

gethinceri

Did your "all the others" include the Favero?
Mine works nicely with my Campag groupsets.

isotonik

stages.

StillGoing

Power2max were doing a deal for Rotor 3D30 crankset with a type 2 S powermeter, free Rotor tool, cover, chainring bolts and free rings for much less than the £1600 at £759.

https://www.power2max.de/europe/en/Prod ... 3d30-road/

It'd work with your Campagnolo set up.

rjgr

Just my thoughts. I mulled over this problem for a year, hoping that Stages would deliver a Campag branded solution (and at the same time fix their much reported battery eating problem). I discounted a new non-Campag crankset because I couldn't rationalise a 'downgrade' from a Super Record on an otherwise all Italian bike. In the end I gave up waiting and went with the Powertap pedals. A tiny bit heavy and force you to use 'Look style' cleats, but if you can cope with those limitations its proved a perfect solution to riding with power and the benefit of being able to switch to other bikes in 2 minutes with a single hex spanner.

cal_stewart

cheers for the replys,

I'm a speedplay user and I'm not willing to change, Its a shame really i'd kill for speedplay vectors.

I'd love to keep a full campagnolo drivetrain but the cost is just to great.

Cheers for the Power2max deal, that changes things.

The joys of being a Campagnolo user.

thegreatdivide

Cal_Stewart wrote:

cheers for the replys,

I'm a speedplay user and I'm not willing to change, Its a shame really i'd kill for speedplay vectors.

I'd love to keep a full campagnolo drivetrain but the cost is just to great.

Cheers for the Power2max deal, that changes things.

The joys of being a Campagnolo user.

Should that not be the joys of being a Speedplay user?

PTestTeam

I use InPower

It's a doddle to set up and calibrate. Battery is easy to change, and is consistent. If you run Q rings it's calibrated with these to allow for the oval rings and the various power surges on the pedal stroke.

I'm really happy with mine.

mpatts

I run a quarq elsa, SRAm RED cranks and rings. Looks ok with the chorus 2015 gruppo.

PTestTeam

BTW I'm a Campag man as well. The set up looks good

cal_stewart

thegreatdivide wrote:

Cal_Stewart wrote:

cheers for the replys,

I'm a speedplay user and I'm not willing to change, Its a shame really i'd kill for speedplay vectors.

I'd love to keep a full campagnolo drivetrain but the cost is just to great.

Cheers for the Power2max deal, that changes things.

The joys of being a Campagnolo user.

Should that not be the joys of being a Speedplay user?

That as well.

PTestTeam wrote:

I use InPower

It's a doddle to set up and calibrate. Battery is easy to change, and is consistent. If you run Q rings it's calibrated with these to allow for the oval rings and the various power surges on the pedal stroke.

I'm really happy with mine.

This is why I'm finding it hard to look pass the 2inpower its a true double leg meter as well.

StillGoing

P2M is 2 leg and works with Q rings without issue. P2M is also instantly calibrated. But 2 leg is not a real necessity as most people are one leg biased. All a genuine 2 leg reading shows is how far the difference is. You can train to try and even it out a bit, but does it really achieve anything? I tend to think it isn't worth it.

PTestTeam

Cal_Stewart wrote:

thegreatdivide wrote:

Cal_Stewart wrote:

cheers for the replys,

I'm a speedplay user and I'm not willing to change, Its a shame really i'd kill for speedplay vectors.

I'd love to keep a full campagnolo drivetrain but the cost is just to great.

Cheers for the Power2max deal, that changes things.

The joys of being a Campagnolo user.

Should that not be the joys of being a Speedplay user?

That as well.

PTestTeam wrote:

I use InPower

It's a doddle to set up and calibrate. Battery is easy to change, and is consistent. If you run Q rings it's calibrated with these to allow for the oval rings and the various power surges on the pedal stroke.

I'm really happy with mine.

This is why I'm finding it hard to look pass the 2inpower its a true double leg meter as well.

My InPower is the left leg version. As per the other poster, do you need to spend the extra to take readings from both legs? I suppose it would be nice to know if there are big discrepencies, but I use it to measure my output, work out my FTP, work to the zones and see if I'm improving.

cal_stewart

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

StillGoing

Cal_Stewart wrote:

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

Pro riders don't either as Sky have been happy using Stages for years now.

ivanoile

philthy3 wrote:

Cal_Stewart wrote:

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

Pro riders don't either as Sky have been happy using Stages for years now.

With some reports stating that some riders tend to use other power meters, just because they use it while racing doesn't mean they use it on training...
*I can't remember where,but I've seen on some web pages.

amaferanga

Cal_Stewart wrote:

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

L/R balance isn't a constant. It'll vary with fatigue, effort level, cadence, etc. so testing on a Watt bike will tell you nothing about your L/R balance in the real world.

You only need both leg readings if you want reliable, repeatable power measurement. If you're happy with a guesstimate that could be out by several percent (on top of the +/-2% 'internal' errors) then sure, buy a single sided power meter.

I'm happy with a P2max that's barely more expensive than a Stages and significantly more reliable (both in measured power and in terms of being usable in the rain).

StillGoing

ivanoile wrote:

philthy3 wrote:

Cal_Stewart wrote:

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

Pro riders don't either as Sky have been happy using Stages for years now.

With some reports stating that some riders tend to use other power meters, just because they use it while racing doesn't mean they use it on training...
*I can't remember where,but I've seen on some web pages.

If you read the context of the subject, it's about having access to each legs readings all the time. Nobody needs it.

cal_stewart

amaferanga wrote:

Cal_Stewart wrote:

I'm happy with my L/R balance and have access to a Wattbike if I need to test it. I'm pretty much 50/50.

This is the big thing with marketing does a non pro really need both leg readings?

L/R balance isn't a constant. It'll vary with fatigue, effort level, cadence, etc. so testing on a Watt bike will tell you nothing about your L/R balance in the real world.

You only need both leg readings if you want reliable, repeatable power measurement. If you're happy with a guesstimate that could be out by several percent (on top of the +/-2% 'internal' errors) then sure, buy a single sided power meter.

I'm happy with a P2max that's barely more expensive than a Stages and significantly more reliable (both in measured power and in terms of being usable in the rain).

You do know Power2max isn't a true double leg meter?

meesterbond

Cal_Stewart wrote:

You do know Power2max isn't a true double leg meter?

It's double leg insofar as it measures the actual power around the entire stroke and then takes the L/R balance from where the left and right cranks are in the stroke.

As opposed to Stages for example which takes the left leg power and doubles it, assuming both legs produce the same power.

cal_stewart

Don't want to get into a debate. This is the advantage with the rotor as it does measure both sides. Stages as you say just doubles the single leg power. Power2max just takes the whole value from the spider so is a true value but in no way does it have a true L/R balance capability. This is why Power2max is most likely being in the new powermeter seen being tested by Bora at the Tour.

StillGoing

Cal_Stewart wrote:

Don't want to get into a debate. This is the advantage with the rotor as it does measure both sides. Stages as you say just doubles the single leg power. Power2max just takes the whole value from the spider so is a true value but in no way does it have a true L/R balance capability. This is why Power2max is most likely being in the new powermeter seen being tested by Bora at the Tour.

The variance between the true L/R balance reading and the P2M reading is going to be so negligible to make no difference. If perfectly measured L/R balance is that important to you, the Rotor isn't going to cut it either. As has already been said, do you really need an absolute reading for L/R balance? Most ride with 3s or 10s power readings as their info rather than concentrating on what the L or R leg is doing. The P2M is capable of assisting riders with strengthening their weaker leg if they so wish because of how it measures and calculates each legs power. Personally I couldn't care less about the difference as long as it's in the realms of 46/54. Incidentally, as a right footer, the left leg as the standing leg should be the bigger thigh muscle and presumably the more powerful. In my case it isn't with my readings showing the R leg being the stronger. We ride how we get our best results is all that matters.

meesterbond

The Campag power2max is also on sale at the moment...

http://www.power2max.de/europe/en/Produ ... l-offer-2/

€1,279 with rings and installation tool... which equates to about £1,279 nowadays. Tempted to get one myself for my new build to be honest!

cal_stewart

had discounted the 5 bolts campagnolo, then I slapped myself as the arms the same just a different spider and as I'm probably going to swap to fibre-lyte rings it makes no difference.

However the Rotor 3D30 deal is mental as you can get the ceramic bsa bb in with the deal. Waiting on a reply ref Mwst free as I'm currently outside the EU which would put the Rotor @ £650 and Campagnolo @ £1000 if they will do it.

StillGoing

Cal_Stewart wrote:

However the Rotor 3D30 deal is mental as you can get the ceramic bsa bb in with the deal.

It is a good deal and if I hadn't already got a 3D24 crankset with a Type S P2M, I'd have gone for the deal myself.