Talk about tough! This dude is well-known for his fast-pedalling rides and winning national races. Ever since he got on his CX bike seriously, we rarely see Rainier on his track bike. This might be a promo for the new Cinelli MashSF Parallax frame, but I’m not too sure about that. Hah! Let send Massan down bombing that hill. But MashSF really need to put up a full video already.