Magene P515 PES Spider Powermeter

[raisinberry777]

Replacing the P505. Same price:

https://www.magene.com/en/pes/217-pes-p515-power-meter-set.html

[acino]

So what are the improvements? It looks a bit lighter (~25g or so) and accuracy change from 1.5 to 1%? Am I missing something?

[SillyMochi]

Was asking myself the same question. Here are the specs side-by-side. Not really any "real" changes, just some minor improvements. But then again, the price is the same. If performance is the same or even slightly better, I'm okay with a minor product refresh. Better than all the "silent updates" some other Chinese companies do (ehem Ltwoo). Would be a different story if they increased the price by 50 or even 100 USD.

[toxin]

Agree. No desire to replace my p505, but improved battery life, weight and accuracy are good iterations. I also think they've made the back of it a little lower profile as the incompatibility warning for BB386 and T47I is gone and replaced with

*Compatible with 68mm-86.5mm standard road bike bottom brackets.

[acino]

Agree. No desire to replace my p505, but improved battery life, weight and accuracy are good iterations. I also think they've made the back of it a little lower profile as the incompatibility warning for BB386 and T47I is gone and replaced with

Ah yes, that's great news. I was looking for this info but couldn't see it anywhere.

I probably phrased my original post poorly - I did not mean to suggest that I was disappointes. I was just wondering what's different in the new version.

[dolph]

Was asking myself the same question. Here are the specs side-by-side. Not really any "real" changes, just some minor improvements. But then again, the price is the same. If performance is the same or even slightly better, I'm okay with a minor product refresh. Better than all the "silent updates" some other Chinese companies do (ehem Ltwoo). Would be a different story if they increased the price by 50 or even 100 USD.

It clears T47 bottom brackets and has active temperature compensation, i think that those are the 2 main upgrades.

[blob]

I am considering buying one for my Ultegra groupset. Which one should I aim for? This one? Or the spider? I am a bit confused by Magene's webpage.
Where would be the best place to order it? Directly or from Magene?
Thanks!

[kubackje]

I am considering buying one for my Ultegra groupset. Which one should I aim for? This one? Or the spider? I am a bit confused by Magene's webpage.
Where would be the best place to order it? Directly or from Magene?
Thanks!

P515 is a better deal and newer tech. The auto temperature adaptation is a huge feature imo.
You have to order on AliExpress if you outside US.

[acino]

P505 already had temperature compensation

[Avalius]

P505 already had temperature compensation

Yeah, think I've read this to somewhere else :-)

[SillyMochi]

Yes, it's even on Magene's product page ...

Combined with built-in intelligent temperature compensation algorithms, it can provide you with precise and reliable power data at anytime and anywhere.

Source: https://www.magene.com/en/power-meters/41-pes-p505-base-power-meter.html?srsltid=AfmBOorN-Nc3EHKJi0P3MRwZWWUnGDRQ3aTeNvM-y-nUsPAKL6tOYCX_

[kubackje]

That's great to here, I thought it's a new feature. My bad

[rcwsr]

P515 is a better deal and newer tech. The auto temperature adaptation is a huge feature imo.
You have to order on AliExpress if you outside US.

I just ordered direct from their uk site for £250. Will be pairing with da 9200 chainrings.

[00Garza]

It clears T47 bottom brackets and has active temperature compensation, i think that those are the 2 main upgrades.

I think the T47 compatibility was the biggest driving factor since everything seems to be going that direction.

[Nopileus]

I can confidently state that the P515 is not compatible with my specific BB386 frame (Felt VR '23, the old one, BB is token ninja TF38624), at least not without drive side spacer shenanigans.

Regular installation just ends in the cranks locking up fully once the bearing pretension is set by feel, the beveled face on the back of the spider collides with the very bottom edge of the frame.
After bodging a 3d printed spacer somewhere around 0.7mm, i didn't measure the actual thickness, i'm getting a gap i can stick 0.65 feeler gauges into and a 10km test ride went without anything feeling or sounding off.
I'll check for scratch marks when i get my hands on proper shims and adjust accordingly.

Obviously i'm not happy with the situation but i don't feel like admitting defeat either.

Bought it from 'EU Tax-free Discount Store' which went fine, arrived in seven days from france via fedex, balance and pedaling smoothness features were already unlocked.
Box showed signs of having been opened before, my assumption is that it is a chinese SKU and the seller activated the spider prior to shipping since the magene app did not have any activation prompt and just paired readily.

PS: excuse the account new-ness, i've been lurking for a couple years