PES P505/P515 Power Meter Crankset - ±1% Accuracy, 625g Lightweight, 380H Battery, 110BCD, ANT+/Bluetooth, IPX7 Waterproof for Cycling

I've been using this close to a year now and it works flawlessly. Installation was easy enough for an amateur home mechanic to do. It is accurate and consistent. Battery lasts a LONG time; I have charged it maybe 2-3 times in the past year and it's never died on me. Fits Shimano 105 chainrings perfectly. I can absolutely recommend this product.

Product is amazing. Easy to install, fit perfectly and simple to set up. Recovering from a hip injury and I felt like this product gave me confidence with all of the data. Well priced, I am getting a second one for my MTB bike.

I’m very happy with this item but two things to be aware of: 1. Be sure you know you know the diameter of bottom bracket or else it will not work and you’ll need to replace that as well. 2. Check the bolt pattern of your chainring or you may need to replace that as well. My bike had a creak in the BB so switching it over and replacing the chainring were already upgrades I was going to make. Very happy with the result and the operation of this device.

I received it yesterday , i have Scott addict with shimano 105 drivetrain . My bike mechanic installed it for me without any problems , he used the original shimano chainrings . I charged the meter , downloaded the app and requested the code several times without receiving a response . Finally i checked the junk mail folder and found the code. After a few attempts the app found the power meter . I took it on one ride , it updated quite rapidly , I hit 400 watts going up hills but only for a few seconds before i started to slow down . Now i will ride the watts to keep my rides intense . I also have a very accurate estimate of the calories burned . So far I love it . I will be updating . Too bad I can’t figure out how to get a few extra charging cords . I may have to call Magene . Magene responded to my email with a link showing where to buy extra charging cables, I ordered 2 for my piece of mind , it will be shipped from china . I think they should ship the power meter with an extra charging cable . I did my second ride today with the power meter , it functioned flawlessly , it updated quickly , it showed 100-150 watts on level roads , 250-300 watts with the slightest hills . My Cyclemeter app paired easily with the power meter , it shows that battery level is still 100% after 2 rides . The power meter paired easily with my Garmin edge 830 , I created a data screen showing watts and cadence , along with radar and wind data . I hate clutter . So far so good .

I purchased the PS505 with chainrings. Everything appeared very nice, no real issues connecting to my smart watch and getting power data, however I noticed that my crank-set fit very loosely in my Enduro bearings. I measured the ID of my bearings with calibrated calipers from work, and they were exactly 24mm. The crank spindle measured 23.95, which seemed normal to me, however the first moment I used the crankset I could feel a massive vibration throughout the crankset. I had very carefully installed the crankset using a torque wrench according to Magene's directions. I tried contacting Magene for support with trouble-shooting and to see if they could recommend a bb/bearings to use with their unit, however they repeatedly would only reply that the crankset is designed for 24mm bearings, which was no help. I ended up swapping out to a different, one-piece bottom bracket, which also instantly had the massive vibration on the first ride. The vibration occurred while riding shoeless (so not the cleats), and across two different trainers and two different sets of pedals. I checked my chain for wear (not even at the first wear mark on my tool), and checked the chainrings for straightness against a straight edge. I also re-tuned the rear derailleur and serviced my trainer's hub, all to no avail. I finally installed a Shimano crankset that fit much tighter in the BB bearings and the vibration stopped. I also noticed that the small Magene chainring that I used maybe a dozen times while I worked my way through the vibration issue showed significantly more wear than I had on my previous Rotor chainring with over 9 years of hard riding on it. I really wanted this unit to work, and maybe it can, but I could not get rid of that huge vibration that did not exist with my previous crankset, and went away the moment I installed a different crankset.

Works great. Good measuring. Sometime connection losses.

Let me first admit, mine is not a typical usage of this product. I'm 64 and I put a moderate 15-minute spin on my exercise bike every other day, just to "clear the cobwebs". The bike is a 25-year-old felt-pad-resistance type and I keep it on a covered outdoor patio. The problem I encountered is: It's anybody's guess how much work I'm putting out from one workout to the next. Am I doing better? Am I getting worse? The actual resistance is dependent not only on the tension knob but also the weather conditions, the inherent inaccuracy (backlash) of the tension mechanism itself, whether the felt pads are damp, how far pads have heated up from my peddling so far, etc. I want to do a consistent caloric output (or wattage output) on every workout. So I decided to get this metering crank. The nice thing about this is it doesn't matter if your bike cost $5000 or $5, is stationary or road, this measures output at the crank via an internal strain sensor. My exercise bike had a standard (aka Ashtabula, American) bottom bracket (BB), so before I could install this thing I had to do a two-phase BB conversion. Phase one goes from Ashtabula to Euro (aka BSC, BC, ISO, British) See "Black Ops BB Conversion Kit American to Euro", which is essentially just a pair of internally threaded bushings. Phase two goes from Euro to PF41 (aka BB86, PF24, Shimano 24mm) using the Shimano BB-MT801 kit. Look on YouTube if you need your hand held doing either of these. Since my exercise bike had 1/2 thread pedals, I also had to buy a new set. This crank uses standard 5/8 thread pedals. UPDATE: It seems I sold myself short. After months of using this crank and witnessing my performance actually decline, I was a bit incredulous. So I tried the OneLapFit "zero calibration" function for my crank (which I probably should have done immediately after installing). Now my new normal continuous NP power reports as 170W. Take that you young whipper-snappers. Oh, and I also had to get a 4-arm chain ring with 52 teeth and a 110 BCD. The 52 teeth matches my bike's original chain ring, which lacked the bolt holes. The documentation is really sparse. The assy diagrams are good, but there's no text, just pictures. I suppose they're trying to be universal. What do the LEDs mean during charging? Where do I go and download the app? No mention. I'm not a bike mechanic and have never worked on bikes, but the hardware installation went smoothly. Just be aware that most of the parts are dedicated right or left and have right or left hand threads. Don't go forcing anything. Watching the YouTube vids before you assemble is a must. Also, unless you're an enthusiast, you probably won't know this: In order to get a summary of your workout, like I do, you will need a bike computer. Not wanting to do a week of research on what was the best computer to get, I just went with the Magene C406 --which ended up working fine. See my separate product review of that. So now I can report that I can do 170W average power output for 15 minutes and moderate effort, with a 42 cadence, and pretty good left/right balance. That's nothing to be proud of, but probably OK for age 64.

Competitively priced and amazing quality. +1- accuracy. No complaints and seamless fit with Shimano 24mm spindle. Swap and play!

Misuratore molto facile da montare e le corone Shimano si adattano alla perfezione. Montato in meno di 20 minuti, molto rigide le pedivelle, misuratore preciso e scaricando i percorsi sul Bryton si notano molti dati in più riguardo la potenza. Unico accorgimento stringere bene la brugola della pedivella e non riesco ad associare il conta pedalate della guarnitura. Comunque sia qualità prezzo imbattibile.

Der Magene PES P505 hat meine Erwartungen absolut übertroffen. Die Montage war überraschend einfach – auch ohne Profi-Werkstatt ließ sich das Powermeter problemlos anbringen. Alle Teile passen perfekt, und die beiliegende Anleitung ist klar verständlich. Was mich besonders überzeugt hat, ist die stabile und schnelle Konnektivität. Sowohl mit meinem Radcomputer (ANT+) als auch mit der Trainings-App auf dem Smartphone (Bluetooth) gab es keinerlei Verbindungsprobleme. Die Datenübertragung ist zuverlässig und präzise – genau das, was man sich für effektives Training wünscht. Auch optisch macht das Powermeter einen hochwertigen Eindruck, und bei den ersten Ausfahrten hat es sich direkt bewährt. Wer ein zuverlässiges und preislich faires Powermeter sucht, ist mit dem Magene P505 bestens beraten. Klare Empfehlung für ambitionierte Hobbysportler und Trainings-Enthusiasten!

Molto felice di questo acquisto. Acquistata x sostituire una shimano ultegra. Compatibilità perfetta con il movimento centrale, avendo perno da 24 mm. Le corone shimano ultegra sono compatibili perché hanno girobulloni da 110 e 4 viti . Si installa in breve tempo con pochi attrezzi. Potrebbe servire una chiave specifica per i movimenti centrali per avvitare la ghiera interna che regge lo spider ma volendo si può avvitare con un altro attrezzo perché viene fornita con un adattatore proprio per quella ghiera. Io l’ho montata senza dinamometrica seguendo le istruzioni fornite. Basta un po di esperienza. Va attivata attraverso la sua app che serve anche per la calibrazione ed eventuali impostazioni. Fornisce dati di potenza, cadenza e bilanciamento destro sinistro.

連続使用時間 充電方法、時間 サイコンとの接続 数値の信頼性 何の問題もありません ただし シマノのチェーンリング全てと ポン付けできるわけでは ないようです 変速が決まらず サイクルショップに 持ち込みで相談したら この105では無理、とのこと 結局 マージーンの チェーンリングを 買うハメになりました ご注意を

Werkt zoals het hoort. Nauwkeurige weergave, simpele installatie. 1 tip, gebruik op iedere draad eigen Loctite. De vooraf aangebrachte verkruimelde bij monteren al.