Hi!
I have a problem with a tacx Neo 2. I am trying to put a 11 Speed cassette on it and either an Ultegra or a Sram force, once mounted and tightened with no spacers are… just lose.I tried to tighten more but I screwed the lockring…
Now, when I put the spacer (it is supposed to be mounted on a 10 speed cassette) before the cassette I can tighten correctly, bt I am not supposed to do it this way
.
any suggestion? where is my mistake?
thank you!
matteo
Hello Matteo.
Have you checked that you have all of the original spacers that were included with the cassette installed? I’ve made that mistake before and the outcome was similar to what you describe.
My Neo2 doesn’t need any special spacers for 11 speed Shimano. ( It actually does need the 1mm spacer that comes with the NEO 2).
hi! you mean the spacers between the cogs? in this case yes, everything is there. and on both cassettes there is no extra spacers before the cassette. I really do not understand.
Try this link.
https://tacxfaqx.com/knowledge-base/installing-the-cassette/
The bit that relates to you:
If your cassette has any indentation or recess at all, then you will ALSO need to install the spacer that came with your cassette. Unfortunately, this step is omitted in the documentation, and has led some Neo 2 owners to become frustrated while trying to install their cassettes.
HTH.
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Hello Matteo,
I had the same problem as you I think with my new Neo2. Did you figure it out?
Cassette is Shimano CS-M9000 (11-40 tooth) 11 speed mountain bike cassette.
Lockring is the one that came with the cassette.
Tacx product is Neo 2T type T2875.
Problem is illustrated in these three videos:
Lloyd
From the SRAM service manual.
The hub on the Neo 2 is an 11 speed spline type.
Add the included 1mm (Tacx) spacer ring on the hub before fitting the cassette and it should work fine.
Yep. The video didn’t work the first time I tried it.
That’s cross threaded for sure. Almost like someone didn’t line up the 11t cog properly before tightening things.
Possibly a good case for XD hubs?
Being that it’s only a trainer hub, he can probably get it to work again if he gets it to screw in straight a few times.
On a bike I’d say it’s time for a new hub.
(My last comment was a follow up on the OP).
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Sorry to kind of hijack this thread. I spent a while fiddling around and came to the conclusion it must be something to do with the threads on the Tacx free hub. So I gradually moved the freehub around 360 degrees and was able to see a small but noticeable dent in the freehub that was preventing the lockring from being tightened. So now I know the problem I have to get Tacx/Garmin to ship a warranty replacement as this unit is brand new. Attached picture shows the problem.
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@Matteo_Vitale . Take a couple of pictures of the cassette mounted to the freehub before you have put on the lockring and this will help others diagnose your problem. I agree you should not have to put a spacer to make this work - but I am not an expert.
Ouch! That’s a nice little dent.
(You could panel beat it while off the the trainer if you were in a pinch. A bit of dowel and a block of softwood should do it without damaging the threads).
Luckily the hub itself is really easy to swap out on the Neo. Glad you found the problem and it’s an easy fix.
Hi Matteo.
Did you ever get the 11 speed cassette installed without it being loose, and shifting correctly. I know that the instructions say not to use the 1mm spacer that came with the trainer, but without it, I can’t get the cassette to tighten up. When I use the 1mm spacer though, the cassette is tight, but there is a lot of gear jumping. Any thoughts on your experiences so far would be helpful. Thanks.
Which EXACT cassette do you have?
If you have:
-
An 11-speed MTB cassette (that all are 10-speed sized, even for 11-speed gears), you DO need to use the typical 10-speed spacer.
-
A newer 11-speed Road cassette that are based on the MTB standard (wider range like the 11-34 Shimano), you DO need to use the typical 10-speed spacer.
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Hi iamholland,
Thanks for the response. I’m kind of out of ideas. I am using a Shimano 11-34T cassette (CS-HG800-11), and I bought the exact one that is on my Specialized Roubaix road bike for the trainer. When the back wheel is on the bike, everything works fine. The shifting is flawless. The cassette that I bought did come with spacer in the back already, and that is installed. I’ve checked, and double checked, that all of the engraved letters, and numbers, on all the cogs are facing me. When I put on the locking ring, I can feel the clicking as the notches on the locking ring, and the final cog lock together, but it just won’t tighten down enough to tighten all the cogs.
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Hi mcneese.chad
Thank you for the response. I have a Shimano 11-34t (CS-HG800-11) cassette. It’s the same on that is on my road bike.
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The problem was me!
I realized I was misplacing the 11 teeth cog, and it was not compacting the cassette. So it was working with the 1 mm ring but it wasn’t without. Then I put everything together properly and… no issues!
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Same here. Check the position of the 11 cog
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Oh, I have had no doubt that it was me from the beginning. I just couldn’t figure out where my mistake was, but that was it. My 11 cog was not positioned correctly, and wasn’t pushing against the rest of the cogs. I thank you Sir!
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My pleasure.
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I think I might have some kind of the same issue on my Neo 2T. On a 11-32 (11-speed) Ultegra cassette with spacer (1.0 mm) the chain will not shift to the largest cog. Replacing it with a 11-30 (11-speed) Ultegra cassette with the spacer ring does work bu still with a different offset for the rear-derailleur then on my bike. Reading that the largest cog is mounted wrong seems odd as it is tied to the following 2 cogs and only fits one way on the free-hub. What do I overlook ?
Misaligned 11th cog happened to me. It was my backup wheel set, and apparently I just threw them together and put them in storage. When I started riding them, I noticed a lot of noise shifting, and just riding. I thought it was a bad chain. Turned out I had blown assembling that cassette on the wheel. I felt so embarrassed when I got to a bike shop trying to address the problem while on a short trip for a meeting. DOH!!! ‘Please don’t tell anyone’ I pleaded, jokingly. They all laughed. It was so easy to do, and so easy to ignore. sigh