ZTTO 11-36T(235g), 11-34T(228g), 11-32T(216g) 11s cassettes

[hansotto089]

Any progress on the cassette merging?

[tomee]

ive been trying to find a WW cassette on 2 x GRX and bought 2 cassettes from ZTTO
11-36 and 11-34

for some reason while using the ZTTO cassettes the chain always hit the rear derailluer.
i swapped like for like. Bike was using a shimano 11-34 which works fine, then swapped over to ZTTO 11-34 and the change points on the ZTTO in the middle always make the chain hit the below.




anyone know why this occurs?
how far should one adjust the B tension?

If i adjust the B tension screw to stop the above it then slightly touches the di2 cable and makes the shifting crap

[robbosmans]

Show a picture of your derailleur hanger, it looks like you are using a normal hanger as a direct mount

[ooo]

you should not have this gap:

[MayhemSWE]

While I have no experience with GRX specifically certainly the Di2 cable should not be anywhere near the cassette?! I'd agree with above that the derailleur is not correctly installed.

[tomee]

Ok best I can do without being hear the bike





I suspect what ooo has mentioned might be the cause but i dont remember if this moved freely. will have to check once i am near the bike

[Hexsense]

Right, it should leave no gap there as ooo mentioned.
Try loosen RD from the hanger and remount again with no gap in that spot.

[ooo]

[pdlpsher1]

Make sure you also re-adjust the B-screw after closing the gap.

[tomee]

thanks. will give it a shot

[tomee]

looks like that worked. issue was right infront if my eyes lol
now to try the 11-36 cassette again

[MichaelB]

Bought a ZTTO 11-32 cassette in the November sales for A$58 delivered, and finally got a chnace to fit it and ride it for a bit. At the same timne, aslo bought a pair of lightly used SRAM Red versions for A$300 for the pair.

The ZTTO fitted fine, and for the most part worked a treat, but have found that at medium load or higher, in the 15T cog, it will skip a tooth. Need to pull it off an have a closer look, and unless I can work the cause out, it'll end up in the recycling bin.

Meh, had to try

[Marin]

The ZTTO fitted fine, and for the most part worked a treat, but have found that at medium load or higher, in the 15T cog, it will skip a tooth. Need to pull it off an have a closer look, and unless I can work the cause out, it'll end up in the recycling bin.

If and old chain skips on a new cassette, you have to replace the chain.

[MichaelB]

The ZTTO fitted fine, and for the most part worked a treat, but have found that at medium load or higher, in the 15T cog, it will skip a tooth. Need to pull it off an have a closer look, and unless I can work the cause out, it'll end up in the recycling bin.

New chain with <100km before cassette fitted.

All other cogs fine

If and old chain skips on a new cassette, you have to replace the chain.

[tiz92]

I recently got a 11-28 Ztto cassette for my ultegra di2 Tarmac SL7. I have to say it works really fine. Sometimes it does not shift from 14 to 15 but I guess with a slight adjustment it will work. Other than that shifting is not much worse than on my Ultegra cassette.

Next days I will also try to merge the ultegra and Ztto cassette. Lets see.