some guys brought one of thise back into our shop because he hit a pot hold in the road and ovious he put pressure on it and the front of the stem gave way and he ended up in hospital for 7 days so if i was you give it a miss
really they should put alloy nipple sleeves in those spoke holes because we have this problem with road/racing bikes at work and if you pay a few quid more you get the rims with the alloy sleeves (not to sure about trials though) Carl