General Discussion Triathlon Talk » Power meter question. Rss Feed  
Moderators: jmk-brooklyn, Ron Reply
2013-11-29 9:38 AM

User image

Expert
1129
100010025
Fernandina Beach, FL
Subject: Power meter question.
Sorry if this has been covered. I need assistance choosing a power meter. I have a 2012 B16 with megaexo BB. Not really finding many megaexo power meter options. Are BB's interchangeable? (sorry if that's a dumb question) Or do I need to use adapters? Looking at purchasing a used one but not yet sure what it is I'm supposed to be looking for.

Thanks for the help


2013-11-29 10:01 AM
in reply to: rjrankin83

User image

Regular
646
50010025
East Wenatchee, Washington
Subject: RE: Power meter question.
Best source for tech info and reviews: DC Rainmaker. The guy is fabulous, meticulous and very straight forward:

http://www.dcrainmaker.com/2013/09/power-buyers-edition.html
2013-11-29 10:17 AM
in reply to: lutzman

User image

Expert
1129
100010025
Fernandina Beach, FL
Subject: RE: Power meter question.
That's for the advice checking out dcrainmaker. I'm pretty aware of the different brands and types and know I want crank based. My problem is finding one compatible with my bike. Didn't really see that info on his site though
2013-11-29 10:51 AM
in reply to: rjrankin83

User image

Veteran
513
500
Lake Balboa, California
Subject: RE: Power meter question.
I believe that's the same style as the GXP bottom bracket. If you get a quarq, you could pick up a bottom bracket from them for $35 (they also have a ceramic version for $200 but I've heard mixed things on those).

What crank do you have? Another option is to go with the stages power meter and just replace your left crank arm.
2013-11-29 11:29 AM
in reply to: 0

User image

Expert
1129
100010025
Fernandina Beach, FL
Subject: RE: Power meter question.
I have the stock FSA crank on there now. I think there's some issues with Stages on Felt bikes due to the clearance on the rear brake.

Thanks for the advice on the GXP BB. That's what I thought I read but wanted to make sure that it would be that easy (just purchase a BB)

Edited by rjrankin83 2013-11-29 11:30 AM
2013-11-29 11:58 AM
in reply to: rjrankin83

User image

Extreme Veteran
3305
20001000100100100
Bronze member
Subject: RE: Power meter question.
I think KathyG mentioned she had a Quarq for sale. It's always preferable to buy from someone you can trust and one thing is for sure, you can trust Kathy.


2013-11-29 12:05 PM
in reply to: marcag

User image

Veteran
493
100100100100252525
Cloverdale, BC
Subject: RE: Power meter question.

Stages is supposed to be releasing some FSA MegaExo & BB30 cranks in January 2014.

2013-11-29 2:17 PM
in reply to: rjrankin83

User image

Oakville
Silver member
Subject: RE: Power meter question.

Originally posted by rjrankin83 I have the stock FSA crank on there now. I think there's some issues with Stages on Felt bikes due to the clearance on the rear brake. Thanks for the advice on the GXP BB. That's what I thought I read but wanted to make sure that it would be that easy (just purchase a BB)

I haven't personally researched this, but someone else on BT has posted that the Stages crank system will not work on the B16 due to limited clearance with rear brake.

 

2013-11-29 2:19 PM
in reply to: ultramike

User image

Member
170
1002525
Subject: RE: Power meter question.
Originally posted by ultramike

Stages is supposed to be releasing some FSA MegaExo & BB30 cranks in January 2014.




Here is the reply I got from stages when I contacted them about FSA cranks. I have a Specialized Tarmac with FSA cranks.

Hi Dwayne,

It should be early January, possibly up for pre-order even sooner. Sorry I don’t have an exact date – but they’re definitely coming. We’re rolling out just left arms first, then full cranksets. Hopefully more info soon. I’ll toss your email in the saved box and try to get back to you when I know for sure.

Thanks!

Amy Shepard
Customer Relations
(800)778-7218
ashepard@stagescycling.com
www.stagescycling.com

2013-11-29 3:56 PM
in reply to: 0

User image


470
1001001001002525
Subject: RE: Power meter question.
I'm the one who wrote Stages won't work with B16's. What I ended up doing is replacing the BB with a new Dura Ace one (like $40 and not too hard to install if you watch a youtube video) and getting a power2max crank based system. They are actually having a sale now:
"$125 off all power meters with BOR chain ring set. Use code blackfriday"
which sucks since I JUST bought mine 3 weeks ago and that would have been nice to save that much. If I remember right, the FSA Gossamer, Rotor 3D, and Rotor 3D+ max will fit the BB I installed. I went Rotor 3D for the supposed better shifting and the ~100 less grams. 3D+ is even lighter and stiffer but too much for me. Not really a weight wennie but since I'm adding weight from the PM, I thought the little extra cost was worth it. Don't limit yourself to a PM just based on the BB. You can always change it out.

Edit:
Even with an FSA option, I don't think stages will work. If you get a tape measure out and do what they say, there shouldn't be enough clearance. I did this on an Ultegra crank I installed and for sure it wouldn't fit. The FSA bowed out slighty more than the Ultegra so maybe it would be a closer fit but I'm 95% sure that it would't fit a B16. I sent Stages a picture with my Ultegra crank installed and they said no way.

Edited by Blastman 2013-11-29 4:02 PM
2013-11-29 4:30 PM
in reply to: #4906042

User image

Expert
1129
100010025
Fernandina Beach, FL
Subject: RE: Power meter question.
Blastman- Thanks for the insight. That's what I was hoping to hear. Pretty much it looks as though I'll just have to add about $50 to the cost of the powermeter for a new BB.


2013-11-29 5:41 PM
in reply to: rjrankin83

User image

Subject: RE: Power meter question.

Originally posted by rjrankin83 Sorry if this has been covered. I need assistance choosing a power meter. I have a 2012 B16 with megaexo BB. Not really finding many megaexo power meter options. Are BB's interchangeable? (sorry if that's a dumb question) Or do I need to use adapters? Looking at purchasing a used one but not yet sure what it is I'm supposed to be looking for. Thanks for the help

To answer your question more specifically, yes, bottom brackets are interchangeable, but they are not always fully compatible.  For example, you cannot run a BB30 crank on your bike...there is no adapter that will work because the BB30 spindle is too large for your BB opening.  However, you can use a GXP crank on a BB30 bike using an adapter.

I don't know all the specifics of what is compatible with what...but since you don't have a BB30 bike, just make sure you don't buy a BB30 crank and you should be okay.

2013-11-29 7:08 PM
in reply to: Jason N


12

Subject: RE: Power meter question.
I installed a TRP 925.1 brake to eliminate the brake clearance issue with a stages crank. I paid $25 on ebay after a month of searching, they run 125 new. This brake is within the chain stay on my b16. My plan was to purchase a different Shimano crank and use a stages power meter. My road bike is 105, so this plan would make swapping rather easy or buying another crank arm cheap.

With that said, I found a GXP Quarq crank on ebay for $650. A new GXP bb later and I have a power meter.
New Thread
General Discussion Triathlon Talk » Power meter question. Rss Feed  
RELATED POSTS

Another Power Meter Question

Started by eazyc10
Views: 233 Posts: 1

2013-02-21 7:50 AM eazyc10

Power meter question! Pages: 1 2 3 4

Started by skipg
Views: 3958 Posts: 85

2011-10-29 11:13 PM Experior

Power meter question Pages: 1 2

Started by rlejeune
Views: 2188 Posts: 33

2011-07-06 9:26 AM jhouse4

power meter question: how do to use TSS?

Started by trix
Views: 1001 Posts: 5

2010-08-11 10:51 AM JorgeM

power meter questions .....

Started by Gaarryy
Views: 696 Posts: 5

2007-09-21 10:32 PM Gaarryy
RELATED ARTICLES
date : June 24, 2011
author : jasongootman
comments : 0
In part three, the coach answers questions on power meter workouts, threshold calculations and how strength training affects power.
 
date : May 5, 2011
author : jasongootman
comments : 0
In part two, you will learn several power meter workouts from race intensity, to aerobic and anaerobic workouts.
date : March 18, 2011
author : jasongootman
comments : 0
In part one, you will learn the fundamentals of power training and the benefits of training with a power meter.
 
date : April 19, 2009
author : jasongootman
comments : 0
Learn how a power meter can serve a role as a race-reconnaissance tool and to help in pacing so you don't go out too hard. Race power analysis included.
date : December 3, 2008
author : jasongootman
comments : 0
What is power training? In this first part, learn the terms and definitions associated with power training. Presented by Tri-Hard coaching and Fit Werx.
 
date : October 21, 2008
author : Coach AJ
comments : 1
Training with a power meter will make sure that you are spending every minute on the bike effectively. Racing with a power meter will keep you humble and in your proper zones on race day.
date : April 1, 2008
author : sportfactory
comments : 0
How will a power meter help my cycling training and racing? A few questions and answers will help determine if a power meter will be good for you.
 
date : December 19, 2007
author : Tri Swim Coach
comments : 2
My problem is I can only swim about 30-40 meters without having to rest. What is the best way to improve this? I need to get from 40 to 750 meters in 6 months.