- How about unthreading and removing the axle adapter, tightening the cassette, and then returning the adapter to the trainer?
Iām pretty sure the adapter doesnāt fit through the lock nut from the outside. I can dismount the bike and try it, but I think I already looked into doing it that way. Itās crazy to me that this is even a āthingā that requires any thought whatsoever. First for me in like 15 years of using trainers!
Iām over screwing around with this new trainer setup. Constantly adjusting things the last week to get it dialedā¦ hopefully once it is Iām able to get as much use out of it as I did with the Venge just on the trainer on the floor! 
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Get a lock ring tool that is also meant to install / remove the lock rings for disc rotors. This one worked in my H3.
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Hello everyone, Iāve just bought the H3, coming from a TACX Vortex Smart wheel-on trainer. Iām experiencing some strange behavior with power measurements: it goes up and down without being āsteadyā at target power (see figure), something Iāve never experienced with the TACX trainer. Iāve updated the H3 to the last firmware and done a calibration before the workout. Iām running a 11-speed MTB Shimano SLX cassette if it matters.
Someone has the same issue and knows how to solve? Itās pretty annoyingā¦ Thank you!
This is what is supposed to look like - your previous trainer was lying to you
you could adjust the smoothing, but true reality this screenshot is normal
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I seeā¦ Thank you for the answer, power smoothing is set to 3 seconds, gonna try with 5.
Yeah, thereās nothing wrong with that power graph. Your prior trainer using erg mode power smoothing was just lying to you.
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Received my H3 back from Saris- this is what they replaced. The list means nothing to me but it looks like they replace a lot of internals.
I have completed a couple of workouts and things appear to be smooth. But I have notice a significant lag when the power ramps up on an interval. Like greater than 5 seconds.
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Mine also has the 5 or so second power lag on intervals changing
The code csdealdd-40 expired on the Saris site which made the H3 $486. Lowest I can find is $547 on Amazon. Cant decide between the H3 or wait for the Hubā¦my last smart trainer was a Kickr Snap which was replaced 3 times in 3 months in 2018. Been using a Kinetic rock n roll with a power meter on the bike, no problems at all in the last 3+ yearsā¦I hope my foray into the direct drive trainer world is semi problem freeā¦I will probably keep the old Kinetic in the room just in case.
I bought an H3 with the last deal, so I canāt confirm that this works personally, but I saw that someone posted on Reddit that the code SCG-50-BLACKHAWK is good for 50% off on the H3 direct from Saris. I donāt know whether that influences your decision at all. I went through a similar decision making process (H3 vs Hub or Volt) and personally felt like the H3 was a better fit for my needs. I use a decent amount of ERG mode, and the H3 gets great marks there. I also got the MP1 discounted with the same previous code, and I was interested in a rocker platform, so that also impacted my decision. Given the potential firmware issues with the Hub, I personally feel like the H3, which has been around for a few years now to work through teething issues, is a better option if you can get it for sub-$500.
Thanksā¦it does workā¦makes it $400!
Ouch, not a great start for their ānewā trainer 
I am hoping Saris can right their ship, but stuff like this is not a promising sign for them to get back into shape.
A similar issue happened to me 5 years agoā¦ Increased thru-axle compatibility was a headline feature of the Kickr 2017, but Wahooās dual-sided adapter was too thick to fit my 2015 Domane and they were unaware until I reported it. Now if they would only make an XDR freehub for that model, I wouldnāt have to waste time trying to sell it.
Yeah, that kinda tracks with their situation TBH. Likely trying to force out the H4 quickly to try and generate revenue to gain the interest of potential suitors.
Just stunning though that they never bothe3d to check and see if a 12 spd cassette actually worked.
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Has anyone seen their H3 produce red dust? Tried reaching out to Saris but after like 2 weeks they sent me a generic copy paste email that was like āPlease tell us your shipping address, the serial number, describe the problemā¦ etcā Which suggests they didnāt even look at my original email.
Now that is weird! Hope you get it sorted out. You take it apart yet?
Nope still riding it, havenāt received a second response from Saris since I sent them all the requested info and the picture.
hasnāt SARIS been sold recently due to them going bankrupt? I wouldnāt expect a response any time soon if that is the case. I have one of these as well and will go with one of the other ones when this one eventually failsā¦
Is it possible this is from the belt? Seems like a misaligned belt would be likely to produce dust with excessive wear. Maybe open it up and check how to belt is seated?
I havenāt opened up my H3 to check, but if I remember right the stock belt on my original Hammer was red.