I had 2 new tyres fitted by this company while visiting Kent they filled them with Nitrogen but Now no garage air line fits it to check pressure how do you do that or do you have to go to Kwik Fit my nearest one in Wales is over 40 miles from where I live . Any advice apart from not going to quick fit would be appreciated.
Thank you

 

Do you have a photo?? I've only ever seen schrader valves fitted to cars.

 

It will be to stop air being added. Do you understand the reason for filling with Nitrogen rather than air?

 

Still shouldn't be a different valve fitted. Most probbly air in there anyway knowing Kwick fit!