Sram XX1 - Power measuring options?

Discuss light weight issues concerning mountain bikes & parts.

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njee20
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Location: Surrey, UK

by njee20

boots2000 wrote:Devinci,
I for one would not want the port- Too much chance that it dies mid-ride with a 100 hour battery.


devinci wrote:does it have the rechargeable port on the crankset, boots200?
.


Do you do a lot of 100 hour rides!?

by Weenie


boots2000
Posts: 1476
Joined: Mon Oct 15, 2007 9:28 pm

by boots2000

No, but do you believe something like this would have the accuracy to be able to run it to near empty and then recharge?
When the powercontrols had to go on a charger they would doe partway through rides all the time.
Thing shows it has battery life and then takes a dump on you.
I would rather have a new 1000 hour factory battery.

njee20 wrote:
boots2000 wrote:Devinci,
I for one would not want the port- Too much chance that it dies mid-ride with a 100 hour battery.


devinci wrote:does it have the rechargeable port on the crankset, boots200?
.


Do you do a lot of 100 hour rides!?

ridonkulus
Posts: 22
Joined: Fri Nov 22, 2013 5:12 pm

by ridonkulus

Anybody know why Stages can't use carbon cranks for measuring power? Does it have to do with carbon flexing inconsistently? If they could do carbon I think that would be the best option.

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devinci
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by devinci

I dont see how a new compagny could be the best option over the gold standard SRM...

ridonkulus
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Joined: Fri Nov 22, 2013 5:12 pm

by ridonkulus

devinci wrote:I dont see how a new compagny could be the best option over the gold standard SRM...
better option if you don't want to spend upwards of 2k. I don't see any disadvantages the stages has over the SRM. It just doesn't make sense to pay double for something that does the same thing.

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devinci
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by devinci

it is not doing the same thing. It does not use the same technologies, so it's not the same.

I am not saying stage is bad. SRM is not cheap, but has the knowledge, reputation and history to back their products.

JoeJ
Posts: 1
Joined: Sun Dec 15, 2013 2:02 pm

by JoeJ

I'm thinking of doing an XTR crank, Wolftooth ring, Stages PM & everything else XX1. Other than this not being an SRM (not in the budget) any reason this wont work?

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danielbahia
Posts: 51
Joined: Wed Sep 30, 2009 9:04 pm

by danielbahia

Hi guys!

Do you know if there is another model available further than SRM or XTR/Stages? I don't want to spend so much, for now, but really need an alternative.

Thanks in advance

whodesigns
in the industry
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by whodesigns

I am using a XTR with Stages and Wolftooth, this was one of the only options in 180mm arms.

I have a bunch of SRM's in road and science but nothing with the correct BCD.
Specialist Sports Technology
http://www.luescherteknik.com.au
Zerocompromise High Performance Footwear
http://www.zerocompromise.com.au
Carbon Bike Repairs
http://www.carbonbikerepair.com.au

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devinci
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by devinci

There are new 1x SRM units (shimano, sram and cannondale?) that are out and I was told they would be upgradeable to the user changeable battery once it is osrted, pretty nice.

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djconnel
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by djconnel

Please, please don't compare Stages to SRM. One is one-leg, the other is two legs, and that makes an enormous difference in accuracy.

I'm not saying Stages is bad. It's just not nearly as good @ total power.

bikeguy0
Posts: 17
Joined: Mon Feb 18, 2013 6:01 am

by bikeguy0

see this post in the mtbr forums from my bike: http://forums.mtbr.com/xc-racing-traini ... st11158590

XX1 GXP w/ Stages X9 left arm on a Niner Air9 RDO hardtail.

Thanks.

DanW
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by DanW

I have to admit that the Stages PM on Hollowgrams is extremely tempting yet still expensive. I can understand the single leg limitations but as a training tool it doesn't seem any worse than anything else, especially considering how variable MTB efforts seem to be. The sampling frequency and head unit sampling frequency seem to be the main issue to getting decent data though. Stages on Hollowgram arms is practically very nice too due to the range of spindle and spider options so it is a PM for life on any bike (MTB, CX/ Road), with any wheels (Shimano, XX1 driver) and any drivetrain (single, double or triple). Practilities-wise it seems very nice although I'd like to see more comparisons of data and some more in depth stuff about single vs double leg assumptions...

Would those using Power Meters for MTB be able to give their thoughts on the various practicalities of training by Power for MTB in the thread here: http://weightweenies.starbike.com/forum/viewtopic.php?f=8&t=124828

Cheers :beerchug:

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devinci
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by devinci

it is a PM for life, if it lasts....

DanW
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by DanW

it is a PM for life, if it lasts....


True :D But the point of adaptability stands. Accuracy and usefulness on the other hand... seems that a lot of people here on WW, especially on the road side of things remain unconvinced by Stages.

by Weenie


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