Cops

San Diego County Sheriff's Department (CA) look's like Honda Fourtrax 300 (TRX 300) This belongs in the "Quad and other All-Terrain," category. Mike, this should be no problem for you. late 80s Honda Fourtrax by rims and fenders

And that was never identified because it was buried in the wrong category...

Ural M65 ? Ural M 63

Ural 650, M63 have another chassis.

Ural M 63

Not M-63. Ural 650 or newest.

JAWA 638 Well, no need to have three dark Jawa 638 1-star & 2-stars here. A kind or bored admin could combine them

Jawa 638 Kalifornian

should be 1980 XJ650 Maxim http://upload.wikimedia.org/wikipedia/commons/6/60/Yamha_XJ650_1.jpg does it read COPS on fuel tank

Harley Electra Glide Police à perte de vue

Kawasaki GPZ 500 S

Street Glide

Honda

Honda Paneuropean police package -- police of my city (https://c1.staticflickr.com/9/8677/15843193254_8790a2a759_b.jpg) has the same model. The other side: https://c2.staticflickr.com/8/7432/15843200034_a7b5ffb5f0.jpg

Honda CB 750 Four K3.

Loupé, c'est une 500 four (entre autres, échappements typiques!)

2004-2005 Yamaha YFZ 450

it matches http://www.ratemyatv.com/sport/2004%20Yamaha%20YFZ450.jpg

In the episode he says it's 650cc if this helps.

Kawasaki ER6F (2006)

Kawasaki EX 500 (Ninja 500 R), 2007ish.

Late 90's/early 2000's Yamaha YZF R6

GPZ500S in 1991 colours

This must've been the UK episode they did a while back.