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Discussion Starter #1 (Edited)
Which was the first production sportbike using an aluminium frame and when was it introduced?
Many followed but this bike was a true milestone in motorcycle history.

Aris
 

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A lot of ppl will say the first GSXR750 in 1985, but I think it was the Jap spec version of the RZ500 in 1984.

I had the steel framed 1983 export version but there was an alloy framed Japan only street version. Does that count?

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Discussion Starter #3 (Edited)
No Mike you didn't get this one right I'm afraid.
When I saw that you answered I thought, 's**t he got than one already' and I would have to start looking for new trivia again :D

I was also thinking that most people would say GSXR 750 but I didn't warn them on purpose :p
The bike we re looking for was before the one you mention and it was exported everywhere.
You are very close though :cool:


Aris
 

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Discussion Starter #5
Hi Mike,

It seems that's it's harder than I thought :D

I'm not giving it away yet, but I'll give some hints:
It was 1983 and Japenese.

Aris
 

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Discussion Starter #7
waynofzr said:
Could it have been the RZ500 2-stroke? Am I warm?
Look a few posts up. Titomike suggested that already.

You re hot :p

Aris
 

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Okay, it looks like we are getting to the point where it is okay to cheat. So, here I am!:D

The only thing promising that trusty Google could turn up on this was something about some dude named Moriwaki who supposedly developed the first aluminum frame (I thought this would make a good trivia question, too).

Wait a minute! I think I found it! Was it the Suzuki two-stroke RG250?:D ;) :p
 

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Discussion Starter #10

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Discussion Starter #11
Except of the first aluminium frame it also had a very nice rear with incorporated indicators (another first I think).

Aris
 

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Noooo way :p

I actually owned one of these before my RZ500, but I would never, ever consider it a sportsbike. It was a Learner Bike :p

Flat out 160km/h and it vibrated that much the allen bolts holding the 'spannies on would vibrate loose.

Trick Question.


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Discussion Starter #15
Mike, here are the specs:

SUZUKI RG - Ã 250 (W) 1983
Overal Dimensions 2,050 * 685 * 1,195 mm
Wheelbase 138,5 mm
Distance from the ground 155 mm
Weight (full of liquids) 146 kgr
Temps 2^
Fuel consumption 45,3 km / lt (50km/h)
(REAL:13km/lt average)
Braking (deceleration) 14,0 m (50km/h)
tanè=0,70 (35 0')
3,2m
Capacity 247cc
Cylinder dimensions (Bore x Stroke) 54,0 * 54,0 mm
Compresion Ratio 7,5/1
Horsepower 45 PS / 8.500 rpm
Torque 3 ,8kgm / 8.000rpm
Carburators MIKUNI VM28SS * 2
Transmition Ratio
Primary transmition 3,100
GEAR
1 21,583
2 14,029
3 10,446
4 8,633
5 7,450
6 6,751
Secondary Transmition 2,785
Caster angle 28 45'
Trail 102 mm
Front Tyre 100 / 90 - 16 54 S
Rear Tyre 110 / 80 - 18 56 S
Ignition CDI
Advance BTDC 20 / 6.000 rpm
Battery 12 V 5 AH
Fuel Tank Capacity 17 lt
2T Oil Capacity 1,2 lt
Spark Plug 2 x ( NGK ) B 9 ES , ( ND ) W 27 ES
Spark Plug Gap 0,8mm ( 1,6 mm )
Chain free play 10 - 20 mm

Contrary to what you mention, I remember that it was the fastest small bike ever (until then) and with around 40 ps on the wheel and 145 kg fully loaded with fluids, it had excellent performance (for a 250).
It wasn't as fast as the RD350 (RZ for you ;)) but it was so much better in the twisties that there was no comparison.
It even had special super sticky Michelin tyres designed fot that bike!
Did I mention that it had an aluminium frame? :D

It seems you were a very fast learner :p

Aris
 

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I had mine about a year then crashed it off a 30 foot cliff so never actually got past the learner stage :D Recovered it with the help of some Dutch tourists who had a Landrover with a winch.

After I repaired it and sold it I did the obvious thing and bought an ex-drag RZ500 with 640cc(?) kit. Wicked.

My mate had a kitted RD250LC which blew the RG250 away on the straights so it was always play catch up comes the twisties.

:)
 
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