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Power Meter for 2013 R3 - options?

Last post 02-20-2015 9:03 PM by rider2. 15 replies.
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  • 02-16-2015 5:50 PM

    • apwndwest
    • Top 75 Contributor
    • Joined on 09-11-2014
    • Vancouver, British Columbia
    • Posts 275

    Power Meter for 2013 R3 - options?

     I have a 2013 R3 with a FSA Gossamer 50/34 crank set (stock equipment as bought) on it. I am looking at Power Meters. I would greatly appreciate any suggestions from the group on what to buy and any install issues to watch out for. I am assuming I will have to upgrade the crank set.

    If this has been laid out in another thread then please point me to it. I did check and also looked here http://www.cervelo.com/en/engineering/ask-the-engineers/bbrighttm-and-power-meters.html but having no experience in this area am struggling a bit to translate to plain english.

    Thanks in advance.

    2014 R3 (Hills bike)
    2012 Roubaix SL3 (Endurance bike)
  • 02-16-2015 6:11 PM In reply to

    • WFV1
    • Not Ranked
    • Joined on 12-16-2014
    • Concord, On
    • Posts 17

    Re: Power Meter for 2013 R3 - options?

     You could try Power2max. I bought one (Type S Rotor 3d+ spider only) just before Christmas, installation was a breeze. I haven't ridden outdoors with it yet, just tried it while on the Kickr. Seems to work well. Paired with my Garmin easily. Reviews on DCRainmaker were positive. They have a model for your FSA Gossamer compact crankset in both the Classic and the newer Type S. Their NA distribution centre is located in Vancouver.

    2012 R5VWD Red
  • 02-16-2015 7:48 PM In reply to

    • Dunbar
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    • Joined on 10-20-2014
    • SoCal
    • Posts 116

    Re: Power Meter for 2013 R3 - options?

    I just installed a (used) Power 2 Max Type S +Rotor 3D Plus crank on my S2. I would check with Power2Max to make sure the stock crank on your R3 is compatible with their power meters. I know it wasn't compatible with the FSA Gossamer BBRight crank than came stock on my 2015 S2. They suggested the FSA Gossamer BB386EVO crank + power meter bundle. The Power2Max Classic power meters have been phased out so inventory on the Classic models are limited.
  • 02-16-2015 7:49 PM In reply to

    • trex021
    • Top 75 Contributor
    • Joined on 01-11-2013
    • Minneapolis
    • Posts 269

    Re: Power Meter for 2013 R3 - options?

    I switched out my FSA BBRight crank to a Rotor 3D+ classic with a Power2Max on my R3 as well over a year ago. It is just flawless. I highly recommend the switch. It is super easy to do yourself. I believe the FSA Gossamer version they sell on the Power2Max site is not BBRight compatible. It never hurts to to ask. They are super responsive to emails.
  • 02-16-2015 9:19 PM In reply to

    Re: Power Meter for 2013 R3 - options?

    As you have FSA a Stages Power meter would certainly be worth looking at. The power meter only weights 20 grams (on crank arm) and allows you to get rid of the Garmin Cadence sensor (Stages does the cadence too) which loses you 30 grams. Its the only power meter I know that decreases bike weight! It is one of the few meters that temp adjusts once a second (even SRM doesn't do that) handy if you ride the mountains were elevation changes create temp and power reading changes. Highly recommended by DCRainmaker. Been using mine for a year without issues and enjoying. It only measures power on the left but all authoritative tests I've read (DCRainmakers being the most extensive) indicates readings consistent with top power meters. Unless your a pro the left to right readings have no practical application. It's consuming just using a training program for the big gains. Price about $700 installed. Good luck.
    COR Co-organizer 2015
    2010 Cannondale Rush MTB
    2020 Cannondale Topstone Carbon Ultegra
    2011 Cervelo R3 Red - sold
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  • 02-17-2015 12:27 AM In reply to

    • apwndwest
    • Top 75 Contributor
    • Joined on 09-11-2014
    • Vancouver, British Columbia
    • Posts 275

    Re: Power Meter for 2013 R3 - options?

    Many thanks to you all for the information. Very informative. I think I have enough to move on this now.
    2014 R3 (Hills bike)
    2012 Roubaix SL3 (Endurance bike)
  • 02-17-2015 6:49 PM In reply to

    • Dunbar
    • Top 150 Contributor
    • Joined on 10-20-2014
    • SoCal
    • Posts 116

    Re: Power Meter for 2013 R3 - options?

    rider2:
    As you have FSA a Stages Power meter would certainly be worth looking at. The power meter only weights 20 grams (on crank arm) and allows you to get rid of the Garmin Cadence sensor (Stages does the cadence too) which loses you 30 grams. Its the only power meter I know that decreases bike weight! It is one of the few meters that temp adjusts once a second (even SRM doesn't do that) handy if you ride the mountains were elevation changes create temp and power reading changes. Highly recommended by DCRainmaker.
    The Garmin GSC-10 cadence sensor also doubles as a speed sensor so you might not want to ditch it. Many of the popular power meters on the market have now added temperature compensation (Power2Max & Quarq for example.) Stages is a fine option but you must be OK with the fact that it just doubles your left leg power output which can over/under-state your true power output. The truth is if you have to buy a new crank that means price-wise you should consider several options - Powertap, Stages, Power2Max or Quarq.
  • 02-17-2015 9:21 PM In reply to

    Re: Power Meter for 2013 R3 - options?

    Dunbar:
    rider2:
    As you have FSA a Stages Power meter would certainly be worth looking at. The power meter only weights 20 grams (on crank arm) and allows you to get rid of the Garmin Cadence sensor (Stages does the cadence too) which loses you 30 grams. Its the only power meter I know that decreases bike weight! It is one of the few meters that temp adjusts once a second (even SRM doesn't do that) handy if you ride the mountains were elevation changes create temp and power reading changes. Highly recommended by DCRainmaker.
    The Garmin GSC-10 cadence sensor also doubles as a speed sensor so you might not want to ditch it. Many of the popular power meters on the market have now added temperature compensation (Power2Max & Quarq for example.) Stages is a fine option but you must be OK with the fact that it just doubles your left leg power output which can over/under-state your true power output. The truth is if you have to buy a new crank that means price-wise you should consider several options - Powertap, Stages, Power2Max or Quarq.
    Does P2M measure output from both legs independently? I can't seem to find info about this on their website. Perhaps it was the norm (until the new products that just doubles the power output of one leg came out) that power meters measure both so there's no mention of it. I'm looking into getting one this summer.
  • 02-17-2015 10:07 PM In reply to

    • WFV1
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    • Joined on 12-16-2014
    • Concord, On
    • Posts 17

    Re: Power Meter for 2013 R3 - options?

    It provides an estimate of % balance left to right. It provides total power for both legs as the strain guages are in the spider and then estimates left and right balance based on crank position. The reason why it is an estimate is that if you pull up on the opposite pedal it will register as part of the down stroke for the other leg. DCRainmaker has an indepth article on the p2m. You will need a head unit that can display left and right power balance. My Edge 500 does this and I believe that the other edge models have this capability.
    2012 R5VWD Red
  • 02-17-2015 10:55 PM In reply to

    • Dunbar
    • Top 150 Contributor
    • Joined on 10-20-2014
    • SoCal
    • Posts 116

    Re: Power Meter for 2013 R3 - options?

    BruisedAlmighty:
    [Does P2M measure output from both legs independently?
    The P2M sits between the crank and chainrings so it measures both legs. Stages only has one sensor which is attached to the left crank arm so it doesn't know how much power your right leg is putting out.
  • 02-17-2015 11:53 PM In reply to

    • apwndwest
    • Top 75 Contributor
    • Joined on 09-11-2014
    • Vancouver, British Columbia
    • Posts 275

    Re: Power Meter for 2013 R3 - options?

    http://www.dcrainmaker.com/2014/09/buyers-guide2014-edition.html This power meter review is from September 2014.
    2014 R3 (Hills bike)
    2012 Roubaix SL3 (Endurance bike)
  • 02-19-2015 10:48 PM In reply to

    • Rick
    • Top 75 Contributor
    • Joined on 07-24-2011
    • SoCal
    • Posts 241

    Re: Power Meter for 2013 R3 - options?

     

    Regarding the Pioneer, although you can use the system via ANT+ and display onto a Garmin or Magellan Cyclo 505, without their head unit, you lose all of the pedal positioning data and many other functions that they transmit over their proprietary network.
    --------------------------
    2011 Cervelo R5ca (56cm): Shimano 6870 Di2/9000 Di2/EWW01 Wireless, Rotor Q-Rings, Dura Ace 9000 C-24.
    2010 Giant TCR Advanced SL Pro (M/L): Shimano 9000 Dura Ace, Shimano Dura Ace 9000 C-35 Wheels.
    2018 Trek Madone 9.4 (56cm): Shimano Dura Ace 9000.
  • 02-20-2015 11:56 AM In reply to

    • Subira
    • Not Ranked
    • Joined on 04-10-2012
    • Posts 7

    Re: Power Meter for 2013 R3 - options?

    Plus 1 for the Power2max. I have the S-Type on my R5, using the Rotor 3D+ cranks. Works really well, have the classic on my Winter bike, and its faultless in wet weather. I used Powertap and SRM in the past, and the product quality is excellent (on par with SRM!!)
  • 02-20-2015 2:20 PM In reply to

    • Spencer
    • Top 200 Contributor
    • Joined on 10-10-2013
    • Los Angeles
    • Posts 86

    Re: Power Meter for 2013 R3 - options?

     I've got the Quarq Elsa RS on both mf my bikes and am very happy with it. Not the cheapest option, but I've found the data to be accurate

    2018 Cervelo R5 Disc Dura Ace Di2
    2016 BMC TM01 Ultegra Di2
  • 02-20-2015 2:29 PM In reply to

    Re: Power Meter for 2013 R3 - options?

    I purchased a stages which then couldn't be fitted to my FSA K-force light because the carbon crank arms were molded with curves. The Stages power meter requires a flat surface for proper placement. Instead I bought a used (but recently re-calibrated) SRM, RED-compatible Crank. My only issue with it is that it wasn't compact. I replaced the outer ring and now have a 50/39 set up. Luckily, where I live is flat but, I'm still worried about doing any real climbs. I kept the GSC-10 unit in place, but removed the cadence magnet from the crank arm. I still receive speed data from the wheel magnet. I'm training with Trainer Road and find the power data very consistent, but less than I would have expected. The gym bike where I do spin classes also have power data and I hit much higher number on that thing then on my SRM.
    2012 R5vwd (red)
    2012 Cannondale Caadx 5 Cross (105)
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