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Thought I'd get myself a cadence meter - purely for experimentation, as I've never bothered about actually measuring/tracking my cadence before especially while actually out on my bike.
After reading around (and being tempted to go for a power meter instead) it came down to a cheap "own brand" (because why spend lots on an experiment), a Polar device (would match all my other devices but non-replaceable battery made it look a bit pricey) or this Wahoo device.
The price seemed reasonable enough with not much discount available anywhere and with the option to fit onto the Velcro strap on my shoes it seemed worth a try as I could also use it on my MTB or my occasional winter use indoor training bike and get my money's worth.
Fitting to a bike or using the shoe mount is simplicity as is setup/pairing. I've only used the shoe mount as the crank mounting options of tape or cable ties was a bit permanent while I experimented & decided but it's not rocket science.
To activate, you move/shake it and it links with your paired device and after a few revolutions it registers on the display.
Accuracy seemed good and I got to grips with it. After 3-4 days my Polar V650 suggested the battery was down to 50% - and although the Polar is sometimes a bit pessimistic about this figure with my HR monitor it seems to be a reasonable indicator that a battery has been in use for some time. I had an episode of it not registering and one of it stopping mid-ride so I figured maybe a dud battery. I changed the "no name" battery for an Energizer one and all was well for a week then another low battery warning, a failed connection and a mid-ride stop (when I stopped for a quick break) in past 24hrs. All of my rides have been about 35-40 minutes commuting - so nothing I'd say is excessive.
Changing the battery (a CR2032) involves twisting the unit out of it's mount (of necessity, quite a tight fit) and prising the case apart. Despite starting with a perfectly sized flathead screwdriver it took some cursing with various sized screwdriver blades, coins and knives to change 2 batteries in under 2 weeks and I've mangled the case in the process. Yes, it's a securely closed unit.
I'll persist with another Energiser or Duracell CR2032 but on the strength of the past 2 weeks, 12-months between battery changes isn't going to happen anytime soon. With the connection failures & mid-ride stops, I really can't recommend this item based on my experiences.
UPDATE 5th October : after 3 weeks with no use (because I've been on holiday and not been out on road bike) I deleted it from my Polar V650 then re-paired it for a fresh start. 30% battery warning but seemed to pair OK then once I started pedalling no cadence figure showing up. No more running commentaries on it's failings.
Paired successfully with my Wahoo Element but then spent most of the time reporting zero rpm interspersed with occasional other numbers that were clearly wrong.
Possibly a worn out battery since Wahoo stupidly ship the device with the battery enabled (on a device that switches in when it reacts to movement - brilliant!). However I didn't bother to investigate further as a brand new item should just work. Wahoo make some great products but clearly have quality control issues as I also received a faulty Tickr in the same order. I received a replacement Tickr that seems to be fine but I just returned and refunded the cadence sensor and bought a much cheaper chinese version instead that worked first time (and came with the battery disabled initially, fancy that)
The battery in this one is a CR2025 and the opening slot at one end chips off when using a coated screwdriver. It works sporadically for about the first 3 - 4 minutes a ride. The battery it came with did not have the usage protection piece, so it had only 4% charge. I'm thinking I got a lemon or a used/returned lemon or super old product. I'll buy from my LBS instead, which deals directly with Wahoo. I spent over $60.00 for crap and due to chipping on plastic case from screwdriver (yes, I'm very careful), it won't be accepted as a return. Plastic is so brittle. I'll be checking with Wahoo on the SKU to find out how old this actually is.
Cadence meter was delivered quickly, appears to work as I managed to pair it and get it to appear on my wife’s Peloton app. But when the wife went to use it next day the battery was dead. Not the easiest little unit to prise open even with the proper tools and it is made from the cheapest of flimsy materials. New battery procured and fitted and now works but judging by the other reviews, this may not be for too long. If you do buy one make sure you buy a replacement battery when you buy this meter. UPDATE - AMAZON SENT ANOTHER UNIT AFTER PROMISING TO TEST IT BEFORE SENDING NO PRIZES FOR GUESSING THAT THE SECOND ONE DIDNT WORK EITHER AMAZON NEED TO REMOVE THESE FROM SALE
I bought the product to use with my spin bike but have only successfully managed to get it working once. It activates initially but by the time I got it in place to begin the workout it has stopped functioning. I thought it might be a battery issue so tried to open to replace the battery but following instructions exactly and gently using a coin it wouldn’t open and had to use such force to get in the casing was so mangled it that it was very difficult to put it back together. Having used Amazon for years I can honestly say this is my worst buy ever, for £30 this is absolutely appalling. Steer clear at all costs.
The blue light came on for a few seconds only when changing the battery. It paired with my ELEMNT but the ELEMNT picked up an erratic signal from it in use for just a few minutes, then nothing, and the blue light did not come on. I suspect it might be trying to work because occasionally if I wave it a few inches from the ELEMNT it seems to pick something up. But it is useless with no signal when used on the bike and clearly faulty. Very disappointed.
Got it, wouldn't turn on. Played a while got it to turn on, wouldn't sync. Removed plate (after prying at it for 45 minutes wait various tools... Ridiculously difficult to get off). Replaced battery finally got it working, isn't compatible with zwift as it says (unless on bike)
After all that it then stopped working again. I damaged the case so much just trying to open the crappy thing i doubt i can return it now. Worst POS ever, made me not even want to exercise. Avoid avoid avoid stay away from this complete rubbish.
Sensoren funktionierten bei der Lieferung nicht. Nachdem ich schon einige Rezensionen mit den Hinweis auf leere Batterien bei der Lieferung gelesen haben, bin ich davon ausgegangen, dass diese auch bei mir leer sind. Leider ist öffnen des Gehäuses zum Wechseln der Batterien ohne massive Beschädigungen nicht möglich. Die in der Anleitung beschriebene Methode funktionierte nicht. Ich habe die Sensoren wieder zurück geschickt und mich für Garmin entschieden. Ich empfehle, auch bei funktionierenendne Sensoren, das öffnen des Gehäuses zu testen. Sollten sie erst nach längerer Benutztung die leeren Batterien wechseln wollen, können Sie ggfs. die Sensoren nicht mehr zurückschicken. In meinem Fall wären die Sensoren nach dem öffnen des Gehäuses nicht mehr brauchbar gewesen.
Ergänzung vom 18.08.2020: Ich habe nun seit einiger Zeit die Sensoren von Garmin im Einsatz und bin damit sehr zufrieden. Diese funktinieren einwandfrei und der mechanische Aufbau sowie das Wechseln der Batterien ist deutlich besser gelöst als bei Wahoo. Ich würde ganz klar die Sensoren von Garmin empfehlen!
Never paired Impossible to open to follow the hard reset instructions Still didn’t pair with any app other than the wahoo app which is about as much use as a chocolate teapot So from such a reputable company very disappointed
Useless. Waste of time and money. Linked to the app. Worked once. Now it never finds it. Plus I bought the speed sensor to use on Zwift. Sure enough, Zwift cannot find it. Another waste of time. I also have the heart sensor and fully expect that to pack up next. Wahoo. Bahoo. Shameonoo.