Wow! That's a tough call. He's wearing a leather coat that looks just like the one in Jeff's avatar. But I believe on this ride Jeff was wearing fabric and riding a red 6th Gen with a black rear box & red reflective tape on the rims. I think this is Troy (tjclyde)
I agree, Brian; especially after following you, JeffyJeff & crazybrother (those three bikes) over it - Monitor Pass above Topaz Lake. The dark mountains running through the center, below the horizon, show charring from the Topaz fire this summer of 2012.