Puncture Repairs and Speed Ratings

[Shmee150]

Hi,

To summarise: Puncture in June and 900 miles later new tyre has a slow puncture too, turned out to just be a coincidence but after finding it went and had it repaired at a garage (last one wasn't repairable).

Somebody just suggested to me that the tyre may no longer be Y rated due to the repair. In the tyres lifetime (being only 900 miles old...) I will expect it again to go over 150mph at some point so want to look into this but am not getting very helpful results with Google.

Anybody know much about this?

Thanks!