Tenere 700 and WR250R rear shock bladder. The bladders on the T7 shock wear out much sooner than your average bladder. Every single time we go into a T7 shock the bladder is ready for replacement. Pitting is the issue. They do not blow up but they will leak nitrogen into your shock oil within 1 year.  
Good idea to use KYB factory bladder not Chinese copies being All Balls etc.
This bladder in the WR250R we have not seen the same accelerated wear as the T7.