Front wheel looks like early-mid 70s Japanese.
AT1, twin-shock DT175, TS185, or maybe XL175.
Have a close look at the inside of the brake drum - Suzuki will have the Suzuki "S", Yamaha will have the three digit prefix.
What diameter is the rim? looks like 18", so my guess is late AT1MX (aka AT3M). Will have 248 prefix cast in if it is.
Edit: I'm told I'm wrong, and that it's Maico. The lacing pattern is odd for a Japanese wheel (spokes are all 'inners').