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News flash! The first production MX bike with a radiator is nearly 36 years old.
News flash! 1990 was a quarter of a century ago.
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i thought yamaha made the first water cooled bike yz125 rad up the front
road bikes been water cooled since 1908 500cc 2t twin scott over 100 years
japs just copy eveything
The 36yo water cooled MX bike must be a little obscure?
My (fading) memory was that my '81 RM125 (34 years and counting) was the year Suzuki and Yamaha first produced Water Cooled bikes (125cc only, at least for Suzuki). I, less clearly, thought Honda and Kawasaki did likewise.
Almost certainly it was the year Yamahas patent on single shock ran out.
Pits full off "Full Floater", "Pro Link", "Unitrac" and the overnight outdated "Monocross" (ie: same as the previous 5+ years.)
Radical advances.
Clutching at upgrade straws its "Bold new graphics, revised shock settings, and airforks (revisited)" for the main, these days.