Leif Valin Profile – Props 54 Posted on December 1, 2012 by Effraim — 8 Comments ↓ The crew at Props just put Leif Valin’s profile from Props 54 online yesterday, dry sense of humour, and killer front and back wheel combos, especially love the line at 6:41. If you missed this one the first time round, you know what to do.