For the city it says to inspect them after 40k. Even then most of them are within spec, a few might be only marginally out of spec. Plus it should be done on a cold engine.
I have no clue about motorcycle clearances. But used to do it for an accord euro cl9 and clearances are also on the lower side,
Intake: 0.21-0.25 mm (0.008-0.010 in.)
Exhaust: 0.25-0.29 mm (0.010-0.011 in.)