I calibrated during my ride today and the spin down time was 15.287 seconds. This was after 30 minutes of riding.
Blockquote I calibrated during my ride today and the spin down time was 15.287 seconds. This was after 30 minutes of riding.
Thanks! I recalibrated last night after 7 mins of riding and got ~13.7. So I guess these higher numbers are normal. (and Iām now wondering whether 7 minutes is insufficient to warm the trainer up)
Calibrated mine after 1 hours ride, 14 secs to spin down.
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Interesting update. Calibrated after riding for 5 minutes today and did a zwift group ride. The analysis is here - ZwiftPower -Ā Login . I broke down the average power into 35 minute segments, and the margin between the H3 and the P2M lessened over time.
First 35 min - 6.46% differential in average power
Second 35 min - 5.52% differential in average power
Final 35 min - 4.92% differential in average power.
Iām going to experiment again tomorrow and see if continued riding lessens the curve.
Did a ramp test with TR reading and controlling H3 with Garmin connected to Favero Assiomas - pedals typically read 2-2.5% higher which seems reasonable considering drivetrain loss and accuracy marginā¦ Only area they are significantly off was a single power spike that skewed the very short duration power numbers.
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I have seen some similar changes over time as well. My theory is that this is due to components (belt, grease in bearings, etc) warming up and taking less power to overcome their resistance. The spindown calibration is done so that these losses can be accounted for in the power measurements. As these losses change (to be lower) over time/temperature, the trainer reported power will change (to be higher) relative to the āinput powerā.
The changes you are reporting are in line with this - ie the changes are in the direction I would expect.
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Right on. That makes sense!
Has anyone had issue where midway through a ride/race the H3 trainer shuts off? The green light on the power plug is still on, but the lights on the trainer are out and no power signal transmitted? This happened to me mid race. Pulling the plug out from the side of the unit and plugging it back in resolved. It was in firmly before. But of course that tanks any race you are inā¦ 
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Never had that issue myself. I did have my H1 and H2 get a little warm back in the day but otherwise itās never actually shut down on me
I havenāt had it cut out mid-workout or race, but it wouldnāt come online yesterday despite the green light on the plug being on. Unplug and replug and it was good to go afterwardsā¦
Yea any of the early units with smooth pulley will make the noise more readily. The later units with the sanded pulley will make the noise when the texture wears away. Either way a fail
Hi there new to the forum.
New H3 user here had a unit for 3 weeks and getting knocking sounds.
Is it possible to post a video of it to check if it is the same noise everyone else is experiencing?
Post the video on YouTube, and link it here.
Try this if I have done it correctly.
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Iām no expert but that doesnt sound good! Iāve had my H3 a month and the only noise I get is a belt? creaking sometimes on hard pedalling up to speed from still. Usually its dead silent once it gets going.
Yes I have had that sound too but it is only usually on double digit inclines on zwift but that didnt worry me too much.
I am in the UK and logged the issue with Saris last week and not had any answers yet / not sure if that is typical or delayed due to Covid-19 or something.
I have noticed it is worse in the small ring and that was doing about 80rpm @ 110W when I made the video.
I am pretty sure it is not the drivetrain even if the drivetrain could do with a service.
I was riding a workout in ERG mode and did notice the trainer was noisier than when riding a course on zwift.
I will try to upload some different videos tomorrow.
Cheers
Iām in the UK too. Let us know how you get on with support. As has already been said itās quite hard to tell if thatās the trainer or your bike in the video.
Hi everyone! I have purchased a Saris H3 recently and I have two doubts.
Is it possible to connect to a Garmin Fenix/Garmin Forerunner 945 to see power, cadence and speed? I can connect it as a powermeter but I donāt see neither cadencer nor speedā¦
Are problems with knocking sounds already solved in more recent units? How can we know when the unit was made?
Thank you for your help!
No problem I will double check itās difficult because my trainer is on a suspended floor so sounds resonate through the floor I will double check just in case I was cross chained without realising possible as I was using erg mode.
Cheers for the input.