Leave a Review Carbon Drive Belt Tension Tool
Pretty much pointless.
4 plucks of the belt, 90hz,30hz,89hz and 45hz. Cant do anything with that data.Overlag
Could be better
I wanted to check my bike’s belt tension. This app is a noble attempt at making that easy, but it falls a bit short. First, you *really* need to be somewhere very quiet otherwise your readings will be drowned out. Second, the app seems to have trouble with harmonics. I’d often get readings of 25hz then 50hz then 25hz again. To be honest a spectrograph might be more helpful than a single number.Show lessBaron von Snek
Barely good enough
I have now used the app multiple times. I used it on my Priority 3 speed bicycle. I have gained some experience adjusting the belt and using the app. The app is very sensitive. Ignore the many false readings. I delete them so I know where I am. Things have to be completely quiet. This is essential. You will still get false readings. That was the only part of the app I used. I would also recommend that the average tension reading be ignored. I had an odd sensation when pedaling in second gear when my average was within range but there was a spot that was tighter and out of range. That’s not an issue with the app but a helpful tip. I also recommend squeezing the belt when tightening the axle nuts. Only measure the tension with the app when they’re tight. The Priority website is helpful, if brief. Having the bike upside down on the floor is better than in a stand. Finally, plucking the belt makes your fingers sore quickly.
There are actual tools out there for measuring belt tension, but the app is free and good enough for doing it occasionally.Show lessMynicknameisntanicknameatall
Frustrating
Had I know I would have to use this crappy appt app to adjust the belt, I would have stuck with chains. The love affair is over. My finger is sore from so much gd belt plucking and I’m a guitarist. Poor poor poor app.Tip for more consistent readings
I have found that if you rest the smartphone firmly against the chainstay of the bike whilst taking the readings the results are better. My theory is that the bike frame helps to slightly amplify the sound of the belt. Ideally use a smartphone that has a soft case - eg leather or silicone so as not to introduce additional vibration noises. Be sure also to orient the phone so the microphone is still close to the belt as per existing guidelines.
Further tip - when first open the app and go to the test mode - immediately mute the microphone using the on-screen microphone switch in the app until you are ready to proceed with the belt-plucking. Feel free to repeatedly mute whilst rotating the crank to different position as Shimano IGH hubs will make noise when back-pedaling in certain gears.Show lessTulsa24
This app does work surprisingly well but, it could be improved with a simple update.
I own a priority 600, & this app does help with tensioning the belt when used correctly in a quiet room, but it could be much easier with a simple feature. Please add a “pause button” for in between “plucks” I can’t rotate the crank 1/4th turn without a bike stand else I get a false positive because of other small noises.Show lessdgstyfutuey
Sensitive
Way to sensitive now for me,spoils a perfectly good app which worked really well 👎👎👎👎zerosr18
Cool Idea
Cool Idea, doesn’t work well. Spouts out random readings when I’m not plucking belt, then spouts out values from 20hz to 70hz when I’m plucking the belt.b135825
Leaves much to be desired
The app does not have a “record” or measure button. Thus it is unclear when no measurement is recorded whether I’m using the app wrong, if my belt is set wrong, or if there is too much background noise or other problems. I was able to get the app to work one time, but since then have never gotten any measurements recorded.Show lessMath teacher in WA
Old version much better
The new update off this app is utter crap they really need to update to older versionMia_the_bushbaby
