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Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
I have two power2max ngeco meters, and one quarq. Very happy with both. Assioma pedals are good if you like look pedals. I'd avoid rotor, I know several people who have had issues with them, and I'd avoid single side power meters.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
Very happy with 4iiii on Ultegra. Have also had them on SLK Carbon cranks and 105.
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Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
I've been on Quarq (currently have 3 still working) since 2012. Whilst have had some early troubles when the chain dropped inbetween frame and chainset needing the chainset to be fixed the service from both Quarq HQ in the US and locally in NZ was very good.
Since then rock solid and my next one will almost certainly be another SRAM/Quarq.
Note that in the first 5 years I was swapping it between road and TT bike very frequently. And would take way less than 1 minute to do, so way easier than swapping pedals (was 1 bolt).
To be fair, avoid Shimano and you aren't going to go too far wrong, and I say that as someone with 10 of the 11 bikes in the shed being shimano groupsets. Makes me sad they can't get it right.
Since then rock solid and my next one will almost certainly be another SRAM/Quarq.
Note that in the first 5 years I was swapping it between road and TT bike very frequently. And would take way less than 1 minute to do, so way easier than swapping pedals (was 1 bolt).
To be fair, avoid Shimano and you aren't going to go too far wrong, and I say that as someone with 10 of the 11 bikes in the shed being shimano groupsets. Makes me sad they can't get it right.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
Power2Max NGeco just flat out works. And inexpensive.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
Anyone in triathlon that DOES NOT use Assioma (or similar) is crazy. And those that say crank based is 'better' are full of shit..
Re: Power Meter Suggestions [thatzone]
[ In reply to ]
lol. I use favero on one bike, but your comment is plain silly.
Re: Power Meter Suggestions [thatzone]
[ In reply to ]
I use Assioma Duo’s on my road bike and I agree that they are awesome. Not a single problem and tons of data compared to my old quarq. But if my new tri bike comes with a crank power meter, I’m not throwing it away. 😂
Probably a bit of an aero benefit using a crank based power meter.
Probably a bit of an aero benefit using a crank based power meter.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
Your question is so open ended the only easy answer is NOT Shimano.
One option to consider is aero. The new WattShop cranks have aero crank arms, a very narrow Q-factor, adjustable crank length and work with the SRM PM. There could be 10 watts in aero and improved power output getting everything dial and maybe 5 aero watts. Definitely more pricey up front and probably not the lightest, but you can spend a ton of money hunting for the best crank length.
One option to consider is aero. The new WattShop cranks have aero crank arms, a very narrow Q-factor, adjustable crank length and work with the SRM PM. There could be 10 watts in aero and improved power output getting everything dial and maybe 5 aero watts. Definitely more pricey up front and probably not the lightest, but you can spend a ton of money hunting for the best crank length.
Last edited by:
grumpier.mike: Dec 25, 23 13:15
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
I second Duncan's experience, in that I have a Quarq that I bought in 2003 and it's still going strong.
I just bought a new bike and I'm going to grab some Speedplay/Wahoo power pedals (new bike will not work with OLD Quarq).
The answer to you question is... (1) it depends on how many bikes you have, (2) what size crank you run, and (3) within 1 and 2, how swappable to you want your meter to be.
I just bought a new bike and I'm going to grab some Speedplay/Wahoo power pedals (new bike will not work with OLD Quarq).
The answer to you question is... (1) it depends on how many bikes you have, (2) what size crank you run, and (3) within 1 and 2, how swappable to you want your meter to be.
Re: Power Meter Suggestions [imswimmer328]
[ In reply to ]
imswimmer328 wrote:
I have two power2max ngeco meters, and one quarq. Very happy with both. Assioma pedals are good if you like look pedals. I'd avoid rotor, I know several people who have had issues with them, and I'd avoid single side power meters.I have 5 PM's from Power2max. My oldest one's are from 2014. Like others have said, they just work.
I have installed at least 15 more of them on friends' bikes. They are all still active.
I also have 4 sets of Garmin Vector 3's between mine and my GF's bikes. 3 were refurbished and 1 was new. They also work well. The only issue I had was the battery doors on the new one. Garmin warrantied them and sent replacement doors.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
+1 for Power2Max. Have 3 since 2015 and they have never showed even one 0 output.
I just put a 300 euro SRAM Rival AXS crankset on my Gravel bike, which IMO makes power management affordable enough for all.
I just put a 300 euro SRAM Rival AXS crankset on my Gravel bike, which IMO makes power management affordable enough for all.
cpurcell wrote:
I'm looking to get a new crankset for my training setup. What are y'alls personal suggestions for power meter cranksets? I'm fairly open to any price range.
Re: Power Meter Suggestions [thatzone]
[ In reply to ]
Re: Power Meter Suggestions [thatzone]
[ In reply to ]
thatzone wrote:
Anyone in triathlon that DOES NOT use Assioma (or similar) is crazy. And those that say crank based is 'better' are full of shit..On the balance of things, Assiomas are by far the best deal on the PM one can get especially when they drop the price 10%-20% every now and then.
Crankset based PMs are fine but unless you're committing to the cranklength/ring sizes for 2-3 years, buying them in 2023 doesn't make a ton of sense to me.
Next races on the schedule: none at the moment
Re: Power Meter Suggestions [alex_korr]
[ In reply to ]
Spider based power meters similar to this though. No real restrictions on changing cranks or chainrings with most modern ones, and you're not locked onto a specific pedal system. Each system has it's own drawbacks for sure, depending on what's important to you
Re: Power Meter Suggestions [imswimmer328]
[ In reply to ]
for a crank p2max is the way to go - for pedals assioma are stupidly cheap and they just work!
with that being said: I sold my assioma and got me a set of wahoo just because I love the speedplay system too much :)
The entire event (IM) is like "death by 1000 cuts" and the best race is minimizing all those cuts and losing less blood than the other guy. - Dev
with that being said: I sold my assioma and got me a set of wahoo just because I love the speedplay system too much :)
The entire event (IM) is like "death by 1000 cuts" and the best race is minimizing all those cuts and losing less blood than the other guy. - Dev
Re: Power Meter Suggestions [alex_korr]
[ In reply to ]
alex_korr wrote:
. Crankset based PMs are fine but unless you're committing to the cranklength/ring sizes for 2-3 years, buying them in 2023 doesn't make a ton of sense to me.
Or generally committing to a spider "standard". I've swapped out rings and cranklengths for my TT Power2Max a few times. But it's on the "old" 130BCD 5-arm standard. If I ever change out from my "SRAMmano" 11-speed setup, I might be in trouble.
Re: Power Meter Suggestions [alex_korr]
[ In reply to ]
Just repeating myself - but how about this as the best deal?
On the balance of things, Assiomas are by far the best deal on the PM one can get especially when they drop the price 10%-20% every now and then.
Crankset based PMs are fine but unless you're committing to the cranklength/ring sizes for 2-3 years, buying them in 2023 doesn't make a ton of sense to me.
alex_korr wrote:
thatzone wrote:
Anyone in triathlon that DOES NOT use Assioma (or similar) is crazy. And those that say crank based is 'better' are full of shit..On the balance of things, Assiomas are by far the best deal on the PM one can get especially when they drop the price 10%-20% every now and then.
Crankset based PMs are fine but unless you're committing to the cranklength/ring sizes for 2-3 years, buying them in 2023 doesn't make a ton of sense to me.
Re: Power Meter Suggestions [stevej]
[ In reply to ]
stevej wrote:
Some of us prefer more aero pedalsIn addition to aero, I have big feet and issues with my heels rubbing the chainstays on two bikes. Speedplay heel in/out adjustment is fantastic (and Speedplay adjustment in general).
Re: Power Meter Suggestions [Mulen]
[ In reply to ]
Mulen wrote:
Just repeating myself - but how about this as the best deal?That's a great deal for a gravel bike. But the wide spindle and chain line designed for offroad rear hub spacing aren't great for a TT/tri bike. Neither is the 46T largest ring available in that direct-mount system.
Re: Power Meter Suggestions [trail]
[ In reply to ]
Point taken. Did OP ask for TT specific ?
That's a great deal for a gravel bike. But the wide spindle and chain line designed for offroad rear hub spacing aren't great for a TT/tri bike. Neither is the 46T largest ring available in that direct-mount system.
trail wrote:
Mulen wrote:
Just repeating myself - but how about this as the best deal?That's a great deal for a gravel bike. But the wide spindle and chain line designed for offroad rear hub spacing aren't great for a TT/tri bike. Neither is the 46T largest ring available in that direct-mount system.
Re: Power Meter Suggestions [Mulen]
[ In reply to ]
It's also a single-sided pm, with all the attendent issues.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Re: Power Meter Suggestions [Mulen]
[ In reply to ]
I should've clarified, but definitely road (or TT?) since it would be going on my training bike.
Re: Power Meter Suggestions [fredly]
[ In reply to ]
Issues? If for a Training setup - most athletes would (if close enough to 50/50) be OK with left sided?
What other issues are there? I am using double sided (SRM / P2M) on all my 3 road / tri bikes
What other issues are there? I am using double sided (SRM / P2M) on all my 3 road / tri bikes
fredly wrote:
It's also a single-sided pm, with all the attendent issues.
Re: Power Meter Suggestions [trail]
[ In reply to ]
trail wrote:
stevej wrote:
Some of us prefer more aero pedalsIn addition to aero, I have big feet and issues with my heels rubbing the chainstays on two bikes. Speedplay heel in/out adjustment is fantastic (and Speedplay adjustment in general).
my only TINY beef with wahoo pm is the size of the pod - I could set up the assioma as narrow as I wanted but with wahoo you need to be mindful of the pod.
The shoe also plays a part - lake shoes are easier to get closer but giro shoes have almost flat soles which makes it harder to get close without rubbing the pod.
The entire event (IM) is like "death by 1000 cuts" and the best race is minimizing all those cuts and losing less blood than the other guy. - Dev
Re: Power Meter Suggestions [Mulen]
[ In reply to ]
Quote:
Issues? If for a Training setup - most athletes would (if close enough to 50/50) be OK with left sided? What other issues are there? I am using double sided (SRM / P2M) on all my 3 road / tri bikes
I'm pretty sure that there literally isn't another topic that has been as extensively litigated on this forum as this one, and as a result an appeal to the search bar will be far more useful than anything I could possibly add to the debate at this late point in time.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Re: Power Meter Suggestions [Mulen]
[ In reply to ]
Mulen wrote:
Issues? If for a Training setup - most athletes would (if close enough to 50/50) be OK with left sided? What other issues are there? I am using double sided (SRM / P2M) on all my 3 road / tri bikes
fredly wrote:
It's also a single-sided pm, with all the attendent issues.Per fredly, lots of discussion, but, I think the consensus is that a left-side PM is just fine for lots of purposes, like general measuring of training stress.
If you want really accurate/precise measurements, and want to capture like a 3-4W increase in your FTP with good certainty, then no. Some documented risk of uncertain likelihood that a ~50/50 balance can go out of whack when you're really fatigued.
I have 3 dual-sided and one single-sided Stages, and never felt like I was really missing anything with the Stages. But I was just using to capture training stress and occassional race forensics.
Re: Power Meter Suggestions [trail]
[ In reply to ]
Or if you think you will do aero testing so I am have read
Is that true do you know ?
Is that true do you know ?
Re: Power Meter Suggestions [MrTri123]
[ In reply to ]
MrTri123 wrote:
Or if you think you will do aero testing so I am have read Is that true do you know ?
Yeah, for aero testing, like A/B testing probably go two-sided if you can.
Re: Power Meter Suggestions [MrTri123]
[ In reply to ]
Quote:
Or if you think you will do aero testing so I am have read Is that true do you know ?
This is absolutely the case.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Re: Power Meter Suggestions [trail]
[ In reply to ]
Quote:
If you want really accurate/precise measurements, and want to capture like a 3-4W increase in your FTP with good certainty, then no.If we assume an FTP of around 300w, 4W is inside the standard deviation of essentially all perfectly functioning power meters, even those that don't simply double the measured output of one leg. You'd have to be incredibly lucky to be consistently in that range with a single sided meter. In practice, the number is significantly larger. Very much significantly larger for most.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Re: Power Meter Suggestions [fredly]
[ In reply to ]
fredly wrote:
. Very much significantly larger for most.Maybe. I spent a month comparing my Stages to my smart trainer, and the Stages tracked like a bloodhound. Maybe Im just super lucky, though. I never saw the wild variations warned about
Hey, didn't you say we weren't re-litigating this? :)
Re: Power Meter Suggestions [trail]
[ In reply to ]
Just fwiw, ime (and again fwiw, I'm lucky enough to have many thousands of training client files to draw samples from) low inertia pedaling tends to be one of the "bins" that variances in power balance sorts into. This is very confounding to attempts to analyze these issues effectively on a trainer.
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/
Re: Power Meter Suggestions [fredly]
[ In reply to ]
As fredly alluded to, I have files from sessions where if I had used a left only PM my first interval would have shown as more than 35w higher than my final interval, when actually my final interval was a couple of watts higher than my first.
Re: Power Meter Suggestions [cpurcell]
[ In reply to ]
Xcadey power meter crank from Aliexpress works better than my Stages, is chargeable, and only costs $165.
I bought a Magene PEC P505 powermeter in the fall which is compatible with Shimano 24mm cranks. It was $299 and has been super reliable.