What year did . . .

[quote="Ozy":a1c65]Which model year, and what manufacturer came out with the first production:
1) single shock rear suspension
2) water cooling
3)disc brakes
4)inverted forks


I think Yamaha had the monoshock in 1975
Suzuki first watercooled in 81[/quote:a1c65]

Yamaha, Honda were also water cooled in 1981. Not sure about Kawasaki. I thought the first mono shock was in 1976 on the production YZ's, very well could be wrong though. Disc brakes I think came out in 1986?? Inverted forks, not sure, maybe 1989.
Not very good at this trivia shit.

1. Yamaha 1975 YZ250/360B
2. Mugen 1980 ME125 (very limited but available)
3. Honda 1984 (front only)
4. Honda 1989 I think.

First disc brake was 1983 Kawasaki front only.

Were't the first water cooled bikes just water-cooled heads with finned cylinders?

I think KTM was running USD forks in the mid-early 80's.

[quote="FreshTopEnd":3f3cc]I think KTM was running USD forks in the mid-early 80's.[/quote:3f3cc]I think you might be right.

[quote="JPT":01690]Were't the first water cooled bikes just water-cooled heads with finned cylinders?[/quote:01690]The first watercooled works bike was the 1975 OW27 Yamaha. It wasn't raced in the US though. 1976 Bob Hannah and Danny Turner had OW27's. Both the 1975 and 1976 bikes had fins as well as water jackets. Then Shinobi had that kit for the head only.

[quote="KCMX4LIFE":36cec]First disc brake was 1983 Kawasaki front only.[/quote:36cec]was that the on the production bike?

[quote="T-BOND":14f5c]was that the on the production bike?[/quote:14f5c]

[color=green:14f5c]82 KX125[/color:14f5c]

Brad Lackey was running Simmons inverted forks in '81.

KX125 1982 was correct, I had to look it up though to make sure.

http://www.kawasakinorthside.com.au/prod567.htm

Suzuki was the one that had the radiator's mounted in the right place...

Did'nt those old Rokons have disc brakes?

Yeah, the Rokon's did have disc brakes. '74, '75? Remember the motocross movie that came out in the mid-70's "Sidewinder II". The Maico with disc brakes and star spoke wheels?

My 85 KTM500 had inverted forks. Rokon had a front disc in 73'
Suz, Kaw, Honda and KTM all had water cooled bikes in 81. Yamaha had 125, 250 and 360 monoshocks in 1975.


[img:7bea0]http://www.motocross.com/vintage/vmv/MRrok.jpg[/img:7bea0]

This is a 74' You can see the disc better in this pic.

[img:7bea0]http://www.ahrma.org/machines/rokon_mx.jpg[/img:7bea0]

[quote="Ozy":0f7ad]I think Yamaha had the monoshock in 1975[/quote:0f7ad]Yep, my '75 MX400b was monoshock. Heres a pic of one I found online:

[img:0f7ad]http://hometown.aol.com/vintageyz/75mx400b.jpg[/img:0f7ad]

[quote="FreshTopEnd":f15b3]I think KTM was running USD forks in the mid-early 80's.[/quote:f15b3]
1985 KTM250MX first USD's for production bikes, It also had a front disk brake which was absolutely useless.

[img:f15b3]http://i22.photobucket.com/albums/b320/Racer-X93/Old%20School/85pumpkin…]

If I remember right Don Kudalski used to race for the Rokon Team in '73 or '74.

saw Kudalski at St.Pete in 74 on a Rokon. Rokon Don they were calling him. I think he won a moto that day on it!

The reason I said it... Because I remembered in the back of my mind of him showing up at the old North Florida Speedway once with it. He was also team mates with Marty Tripes and Rex Staten on the Harley-Davidson MX Team.

Remember when Don was hired by Honda to ride support class. I remember watching him pull holeshot at the Daytona Supercross in '76 on the factory RC's. Great stuff, Don was one of the coolest guys around the Florida MX scene in the 70's.

1) single shock rear suspension
Honda, Suzuki was 81
Kawasaki was 1980 on the KDX I belive

2) water cooling
As production 1981

I didn't want a water cooled bike! To much pluming. One more thing to go wrong.

First year for Kawasaki watercoolers was 1982. 80-81 models were dry barrels. 83 was their first liquid 250.