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I have a brand new DT M1900 wheelset which came from DT with tape fitted, I have then fitted the valves supplied by them and mounted my tyre which is a performance model and states 'Tubeless ready' on the side wall. Having applied plenty of Stans sealant and inflating using the compressor the air is quickly escaping from various points on the tyre, it only stays inflated by 1-2 mins.
I have tried this three times now, adding more sealant, rotating the wheel etc.
Does any one have tips?
The other wheel doesnt even have any sealant in it and has held the pressure better than the one with so I am not expecting problems with the other, just this one stupid wheel!
Thanks
Fit it with a tube first. Then leave it overnight. Then break one bead and remove the tube. Insert valve. Inflate.
Which points?
Don't add sealant until the tyre has mounted on the rim.
My procedure is:
1: Unfold tyre and leave overnight
2. Prepare rim
3. Fit tyre to rim (easier if the tyre is warm)
4. Remove valve core
5. Inflate using either track pump or Airshot or similar. Keep at this until the tyre has popped onto the rim.
6. Remove pump/Airshot
7. Add sealant
8. Replace valve core and inflate to intended pressure.
9. go for a ride.
10. Check the pressure the following day and reinflate and go for another ride.
You might need to add some more sealant at this stage - give the tyre a shake before riding, you should hear some sloshing.
Making sure the tyre bead is straight, particularly if its a new, folded tyre.
As Bob/Whitestone says, fit the tyre and a tube and leave inflated overnight, ideally indoors as warmth makes it more pliable - helps the tyre find its shape / straighten bead.
Break the bead on one side, remove the tube and insert valve, you can add sealant if you want, and refit bead.
Inflate tyre - try removing the valve core to give more airflow.
It may take a while to seal properly - do the 'Stans shake' and leave the wheel inflated on its side - it might take a few attempts for it to seal properly.
I did a CX tyre on a road rim last night. It took a bit of effort pumping it up and there were one or two leaks at the bead-rim interface so I added the sealant and did the Stan's shake. Re-inflated and it's still held pressure despite not having gone for a ride on it.
Rotating the wheel so you accumalate sealant around the leaky bits then shake it usually works pretty well.
I put a rub a little sealant on the rims to let slip into position easier.