You might have given me a clue toward something I had not considered - a WiFi relationship. While I haven’t changed my WiFi config, and I’ve never knowingly configured the trainer itself (JB App, yes; trainer no) for Wifi. To the best of my knowledge, Zwift and JB apps just use BT (or ANT+), but there is of course WiFi radio emanations all over the place in this apartment complex. I can at least let my router do a spectrum scan and see if I have a new noisy neighbor I hadn’t previously considered. My ‘puters et. al. haven’t had any WiFi problems in the same timeframe,
If you can get the trainer reassembled, try a head unit if you have one for the ANT+ or BLE connection to see if you’re getting power data. Also, just spitballing here, but Macs might limit the number of BLE connections you can do at once. So if you have any headphones or other things connected, that might be an issue.
Hope you get this sorted out one way or another.
An ANT+ dongle cannot be used with an iPad. Would work with a PC or Mac. Aside from a bicycle head unit, many Garmin watches can pair to a trainer via ANT+.
Connected to my head unit - it used ANT+. It was happy that there was a connection, and the trainer was happy (solid blue light) that it was in session. Zero speed information received by head unit. I’m hunting for a place to source some speed sensors (one for now, several more for later 
).
To those who took their trainer apart, is this part supposed to simply come out by pulling it by hand? Mine seems to be completely stuck. Any tips? @Alex_Beebe @Shane_O_Connor @David_Stark
Sorry, I don’t check the forums often enough. Mine needed some generous help the first time to get out due to corrosion and bits of cemented rubber and grease. I tapped the shaft end with a drift pin and dead blow hammer. If I had to do it again, I’d try threading the pulley bolt back in a few turns and tapping on it with a 10mm socket, socket extension, and dead blow. I used the same technique to remove a rusty steering box from my boat over the summer. Try and be careful not to use too much shock force to prevent damage to the bearings. Also, some light oil on reassembly will help with any future disassembly.
You may also be able to use a gear puller to push the shaft out, but I’m not sure what the puller’s arms would reach behind. I don’t know if there’s enough space behind the pulley.
Thanks for the reply. I got it working eventually (back then) but it needed some good hammering (used a rubber hammer and an sds drill bolt - the sds fits perfectly on the shaft end) to take it out. Also the bearings were a challenge to take out and put back in the replacements, but I got rid of all the weird noises and vibrations the trainer would make. My assumption is that the small 6002 bearing (that holds the shaft) was toast, I could feel it when rotating in hand. The 5202 (btw, for europeans it’s 3202) seemed ok, though I replaced it as well just to make sure. I used SKF rubber sealed 6002 bearing as replacements. So far so good. Was an endavour but I’m happy with the result! 
Glad to hear, and yeah, I agree on that 6002 failure. I think it’s the most likely to fail due to corrosion/contamination from the three different metals all coming together there (stainless shaft, steel key, and aluminum pulley). Rubber seals seem like a good idea, and I think some newer Victory models appear to have made the switch from the factory.
Hello all. The Jet Black Victory is my first direct drive trainer, and while I got it back in March of 2025 I have only just started using it (~100km) with the Zwift Cog.
I find the trainer rather loud and it emits a pretty audible whirr/drone over the sound of my drive train: https://voca.ro/14fJLmYAAAdp.
There is also what looks like a pretty clear line on the belt, the photo doesn’t do it complete justice.
Is this in line with other’s experiences of the Victory or should I reach out to JetBlack?
That doesn’t sound right to me. It does sound, and look, like something is rubbing against the belt unfortunately. If you remove the screws and take the side cover off it should give you a good view of the belt and you may be able to see whats’ causing the rubbing.
I had a similar problem with the belts, increased wear and tear, and a progression of noise. After speaking with my bike shop they suggested contacting the Distributor in Canada. They have a great reputation on Reddit, and they provided fantastic customer support.
I would highly recommend that Canadian customers contact the Distributor in Montreal.
How to tighten pulley bolt
hi, my JB Victory is just over 12 month old and staryednmaking the most horrendous sound. I tool it apart and this bolt was loose. (circled)
when I go to tighten it, the big wheel (flywheel?) just spins in the direction shown.
how can I stop the big wheel rotating. I have used locatite on the bolt.
I installed my victory trainer today I’ve had in box since it was launched back in late 2024
Been using the Zwift hub since its launch
Easy to set up I did a firmware update to version 4.29 which presumably is the latest.
I use the Zwift ride frame and fitted very easily to it I also did a spin down calibration which seemed to work.
It paired with Zwift straight away, I use power meter pedals which paired and I paired them the jetblack app.
I seem to remember their was a issue back then pairing the trainer using WIFI so I just paired using Bluetooth.
My Question is does the WIFI option work ok now or would it be best to leave it how it is?
Wifi pairing works fine these days for me.
UPDATE June 3 2026
For those of you on this old thread asking about support for pairing over the Victory’s inbuilt USB port - it is now available. Please join us on the announcement thread for more details.
I am loving USB direct connection so far. My only issue is that my cat likes to chew on my braided USB cable, so a new rubber one is on the way.
Thank you for the implementation!
Well after 1,568 Miles my Jetblack is broke there in no resistance even though the trainer is connected correctly, the noise is horrendous emailed Jetblack even though i bought it back in oct24.be interesting if i get a reply. I wont be buying another even when launched it was supposed to be a game changer lol
i will probably go for the Wahoo Kickr core 2
i wont be attempting any repairs TBH shame really because i really like the trainer and the fact i can connect it to my laptop via USB.
In March last year, I bought a Zwift Ride and a Jetblack Victory and started Zwifting. Quite soon, the Victory started to make screeching/grinding sounds, though not all the time. After removing the cover and putting a little grease on the pulleys, the sound disappeared for a while, but never for long, I also put on a new chain. Last month, a grinding sound also started coming from the crank. I thought both problems might be related, so I asked Gemini about it
.
The first thing it said was that the grinding sound from the crank might be caused not by the crank, but by friction between the cleats and pedals. It advised me to clean them, tighten the bolts under the shoes, and put a drop of oil or a bit of grease on the points where the cleats and pedals make contact. I must say I was very skeptical, but after doing that, the grinding “from the crank” was indeed gone!
For the noise from the trainer, Gemini came up with all the advice I had already found on this forum: remove the cover, clean, grease, push back the back cover, and finally, contact Jetblack’s customer service. Next, I noticed what I thought was a wobbly lower pulley. So, although I hadn’t bought the Victory directly from them, I contacted Jetblack by filling out a service request on their website, and they contacted me back really fast. After a few questions, I sent them a video, and they responded that they didn’t see a wobbly pulley, but they could hear the screeching sound. They asked me to tighten the bolt of the lower pulley, which I tried, but I didn’t manage completely because I couldn’t keep the flywheel in place while tightening it. But after that try, the noise was less, though not gone .
Then, they offered to service the bearings and, if needed, replace the belt. They asked if I still had the box and if there was a period of 5–10 days that I wouldn’t need the trainer. Because the answer to both questions was negative, I asked if I could drive to their site in Germany, bring the trainer in, and wait for the maintenance to be done. They asked when I could come, and while I was checking dates, I got a new email offering me a refurbished replacement trainer, although it is not their usual policy to replace repairable trainers.
The refurbished trainer (which looked brand new to me) is a newer model than the one I had, with wider, more durable bearings and a better sensor. After switching the feet from the old to the new trainer, installing the app, and connecting the trainer to my Mac Mini (with a USB cable), I paired it with Zwift. Everything is super smooth now! No noises, a smooth ride, and I am very happy with my new trainer and the great support I got from Jetblack. They even gave me a return ticket to send the old trainer back! Thank you Jetblack!!