Last Crusade motorcycles

[TFrosst]

Hey guys. Can you tell me the make and model of both the motorcycle/sidecar combo and the chase motorcycles from the Last Crusade chase scene? I'm pretty sure the chase bikes were some type of Yamaha dirt bike but i'm not sure.

 

[Contec]

They talked about the chase bikes on Mythbusters when they tried the "pole in the wheel flips the bike" myth. Belive they had one of the chase bikes

Part 1 of 6
http://www.youtube.com/watch?v=9fhE0Ti-y-M&NR=1

 

[Air Pirate]

The bike Indy was on was a Dnepr MT11 (probably because the engine looks like a BMWs) but I don't know the year or the sidecar type. I would imagine it's a Dnepr or maybe even a Ural sidecar.

The chase bikes were also supposed to look like BMWs but they weren't, they were Honda XL500S.