Suzuki RG50 - The Ultimate Bucket Racer?

[Hillbilly]

Here's a early '80s brochure on the RG50 Gamma advertised as a racer. Unfortunately it's all in Japanese. The brochure and a lot of other great Suzuki info and specs is from the site http://www.suzukicycles.org

Although all years are covered, only the mainstream models seem to be listed.

[Sketchy_Racer]

Yes they were the ultimate bucket racer in their day!.

Even now, they are still doing really well against the likes of the new aprillias etc!

[speedpro]

My bucket is an RG50. There's been a few things done to it but it's still reasonably competitive even now.

[nudemetalz]

I used to own an RG-50 with an expansion chamber back in the '90s.

There used to be 5 of us who used to hoon around the Port Hills on them. We had a real ball !!

When I used to do Buckets there was a guy who put a sleeved-down DT125LC motor into one.
It was very quick.

I say go for it !!

[bungbung]

The guy riding the bike in the last picture must be a midget, he's tiny!

[James Deuce]

Franco Uncini.

[F5 Dave]

Wouldn't know anything about them, but here is one I saw at the Cold Kiwi near my tent & another pretty much std one at the races some while back

[gav]

Wouldn't know anything about them, but here is one I saw at the Cold Kiwi near my tent & another pretty much std one at the races some while back

Better help us out, which is which? :dodge:

[gav]

The guy riding the bike in the last picture must be a midget, he's tiny!



Franco Uncini.

Dani Pedrosa? Nah, too big...
Yeah Frano Unicini, think he was world champion or something....:innocent:

[Ivan]

Yeah I know of one RG50 in a RS125 chassis which is standered bar expansion chamber which gives a FXR 150 a good lesson in riding it has a awsome rider on the RG

The RG50 is the utimate bucket standered they are so reliable
ok they not the fastest but you change the pipe and you have a nice zippy 2 stroke,
and the frame takes a RS 125 shockwith ease you just need toget a sanding well and sand back half a mill on each side of the shock linkage and in it bolts.
My RG is about to have the top end takin off it and polish the ports apapt a set of honda RS125 rear sets and lower the frame a fraction and it will be sweet.


Oh and another thing to do to the rg is take the handle bars off and put the left bar upside down on the right and the right bar upside down on the left it lowers the riding position of the bike considerably.

Im just in the process of adding some steering stops to it so the bars dont turn as far as well

[madkeenandy]

best bucket standard? pffffft! The FXR would kick its arse any day no matter what sort of frame/suspension ya got!

[Ivan]

best bucket standard? pffffft! The FXR would kick its arse any day no matter what sort of frame/suspension ya got!

Yeah maybe but you watch Jay Lawrence on his one

[madkeenandy]

Yeah maybe but you watch Jay Lawrence on his one

who? where? what?

[Sketchy_Racer]

Yeah I know of one RG50 in a RS125 chassis which is standered bar expansion chamber which gives a FXR 150 a good lesson in riding it has a awsome rider on the RG

It's not standard you knob. It is slower than the FXR, Yes you are right. I think we had the argument about the RS125 chassis VS FXR150 . A good lesson aye? Im pretty sure the FXR beat it last time they raced together? I think i have a video on my PC of them racing. Should it up?


The RG50 is the utimate bucket standered they are so reliable
ok they not the fastest but you change the pipe and you have a nice zippy 2 stroke,
and the frame takes a RS 125 shockwith ease you just need toget a sanding well and sand back half a mill on each side of the shock linkage and in it bolts.
My RG is about to have the top end takin off it and polish the ports apapt a set of honda RS125 rear sets and lower the frame a fraction and it will be sweet.

Haha. I also think you put up a question about changing your rearsets before. I think you were told to stop being a Knob and dont touch what is not broken. Hmm yes lowering. Why would you do that? Oh, thats right so you can get you knee down easier. Hey, how about jsut leaning the bike a bit first aye. Getting you knee down at 20 degrees lean angle isnt cool.



Im just in the process of adding some steering stops to it so the bars dont turn as far as well

What the hell is the point in doing that? So when you crash (from leaning more than 20 degrees) that instead of your handle bars just folding in, It will now hit the steering stop and snap the handle bar. Nice one.


Yeah maybe but you watch Jay Lawrence on his one ( RS125 GP chassis )

Yeah that Jay is an awesome rider. better than all the bucket racers. But it does help that he has a Grand Prix frame. I think that i recall you going on and on about how well that handle. Hmmm. yes. I also remember you going on and on about how shit and slow that FXR150 is. Still, it seems to be able to beat him if the track is simple enough.

So what are you trying to say? You seem to contradict yourself alot.

[madkeenandy]

jeeze why does every forum turn to dishing out shit to ivan? it seems to happen a lot :yes: It might be something to do with his "great knowledge" on every thing....

[Sketchy_Racer]

It seems to happen alot because people get tired of him going on about stuff that he has no idea about, or his ideas are for 'look cool' purposes not for any racing benifit.

He's being a prick to me at the moment anyway. So what goes around comes around.

[madkeenandy]

ahhh well makes a good read at his sake anyway...

[Ivan]

I also think Glen hasno idea at what he goes on about he may call me a shit mechanic but everytime he has worked on my CT125 bucket racer it doesnt go I need to fix it afterwards

[nudemetalz]

Are you guys allowed to raise a 125 twin 2-stroke?
ie GT125?
Or can it only be a single 125 2-stroke air-cooled.

When I used to race in the late 80's/ early 90's there was a guy who built up a Suzuki T90, modified it with reed induction and big carbs, and also bored it out to 100cc. I think he used GT50 pistons. Needless to say it was very quick and sounded the biz.

I hear the rules are quite different nowdays with limitations on carb size too I see.
Was the 150 rule only put in there to allow the FXR's to race?

[bungbung]

The number of cylinders is not restricted, however a 125cc two stroke is restricted to a 24mm (or equivalent) carb and air cooling only.

[madkeenandy]

max four stroke 150cc
max two stroke 125cc air cooled with 24mm carb
max water cooled two stroke 100cc
max turbo or supercharged engine: 100cc four stroke

[madkeenandy]

I also think Glen hasno idea at what he goes on about he may call me a shit mechanic but everytime he has worked on my CT125 bucket racer it doesnt go I need to fix it afterwards

ahh dear i spose i cant say any thing.....

[nudemetalz]

The number of cylinders is not restricted, however a 125cc two stroke is restricted to a 24mm (or equivalent) carb and air cooling only.

So theoretically, you could run a GT125 with 2 x 24mm carbs, or would it have to be 1/2 that size each...?
If that was the (former) case, then you could make a real flier !!

[madkeenandy]

yer i dont know some people have suggested it before, but no ones tryed it yet...

[Sketchy_Racer]

I also think Glen hasno idea at what he goes on about he may call me a shit mechanic but everytime he has worked on my CT125 bucket racer it doesnt go I need to fix it afterwards

so why was it running last time aye? And when you say 'Fix' You mean i put it backtogether after you have pulled it apart. ?? That things fucked.

Oh and your RS125 shock in the RG50. Dont talk like that was your idea. You had your stupid plan of putting your 50 motor into that frame and then the 400 front end..... Fucken nice bro. It takes more than .5mm off each side. I had to mess around getting the correct spacing with all them damn washers.

I may not know much, but i certainly dont go ranting on about retarded modifications to my bike.


Lowering a RG50??

Why? tell me please

[Sketchy_Racer]

Are you guys allowed to raise a 125 twin 2-stroke?
ie GT125?
Or can it only be a single 125 2-stroke air-cooled.

When I used to race in the late 80's/ early 90's there was a guy who built up a Suzuki T90, modified it with reed induction and big carbs, and also bored it out to 100cc. I think he used GT50 pistons. Needless to say it was very quick and sounded the biz.

I hear the rules are quite different nowdays with limitations on carb size too I see.
Was the 150 rule only put in there to allow the FXR's to race?

Ivan used to have one. Its a real goer and its stock. The carbs are 1mm over the legal limit standard. He opened his trap and told everyone about the size. So he sold it. Now AJTurbo races it. the bike is still the same as it was when it left ivans house. But no one cares about the 1mm oversised carbs.


So theoretically, you could run a GT125 with 2 x 24mm carbs, or would it have to be 1/2 that size each...?
If that was the (former) case, then you could make a real flier !!

Neither.

for a twin cylinder 125cc, the carb size must be equvilant to 24mm.

That means you can have 2 17mm carbs. I understand the theory behind it, I just can explain it on the PC. ask F5Dave in need be

[madkeenandy]

oooooooo so AJ's racing an illegial bucket in The BOB eh? tututut

[Sketchy_Racer]

I wouldn't class it as illegal. Wait till he gets to 20 degrees lean and the footpegs dig in and spit him off.

[Kickaha]

oooooooo so AJ's racing an illegial bucket in The BOB eh? tututut

He's slow anyway, he wont be a threat :bleh:

[madkeenandy]

thats goood then... we cant hav a north islander winning..

[ajturbo]

luke has a standered rg50... it starts just by looking at it. it is not the fastest thing out there, but it has slicks and it is a great little bike.. he will learn heaps on it.. but now after the BOB, he wants a bigger engine....

[F5 Dave]

Just woke up.

Simple maths
Area = pi D squared over 4 (or 2 pi R squ same thing)

So 24 squared x3.14 div 4 = 452mm

17 = 226.8 two of = 453 so even 17s are a tickle over but so close.

No one really cares on a slow bike, but if a bike got competitive there would need to be a change.

Why lower a RG50? --Hey a million Boy racers can’t be wrong can they?

Actually I lowered my RG about 2 inches. No point towering up there in the wind, first rule of aerodynamics is less frontal area (ok not the 1st, but an easy one). Also makes the forks a shorter length between the clamps & the axle so less flexing. But I did have to jig around with the shock mount concept to lower the rear.

AJT the longer cct makes the RG seem a lot slower than our usual ccts. Tell him he’ll make it up on the other tracks.

[ajturbo]

Just woke up.

Simple maths
Area = pi D squared over 4 (or 2 pi R squ same thing)

So 24 squared x3.14 div 4 = 452mm

17 = 226.8 two of = 453 so even 17s are a tickle over but so close.

No one really cares on a slow bike, but if a bike got competitive there would need to be a change.

Why lower a RG50? --Hey a million Boy racers can’t be wrong can they?

Actually I lowered my RG about 2 inches. No point towering up there in the wind, first rule of aerodynamics is less frontal area (ok not the 1st, but an easy one). Also makes the forks a shorter length between the clamps & the axle so less flexing. But I did have to jig around with the shock mount concept to lower the rear.

AJT the longer cct makes the RG seem a lot slower than our usual ccts. Tell him he’ll make it up on the other tracks.


right...
THANKS for that dave... i will now take the carbs off and mesure them.. and if they are less than 17.. i'll bore them out?

[Sketchy_Racer]

They are 18mm carbs I think!!

[Ivan]

[QUOTE=RG100!!;762096]Ivan used to have one. Its a real goer and its stock. The carbs are 1mm over the legal limit standard. He opened his trap and told everyone about the size. So he sold it. Now AJTurbo races it. the bike is still the same as it was when it left ivans house. But no one cares about the 1mm oversised carbs.



Just to clear something as well I didnt open my trap about the sizes I started a new thread saying I had it then someone said about carb sizes then everyone started on about me not being able to race it but then I needed some cash to pay the last of my DR off and dad brought it off me and told me to sell it on here because he didnt want it.

[Ivan]

Im going to lower the back end only I ment to say that. Woops
THe RS125 shock makes the back end pop up into the sky and I dont feel comfortable on it the shock works a shit load better now tho

[Sketchy_Racer]

Im going to lower the back end only I ment to say that. Woops
THe RS125 shock makes the back end pop up into the sky and I dont feel comfortable on it the shock works a shit load better now tho

All good dude,

Just remember by lowering just the rear, it will slow the steering down, I think

And yea, that RS shock makes it a awesome bike!

[F5 Dave]

General rule is bike arse end in the air as much as possible.

Make sure the springs aren’t too soft. Lower the front & keep lowering it until the front feels too low.

When you've gone too far at the front it feels like the bars are still steering while you are leant over, then adjust back just a tickle. On a bigger bike this will be too extreme & steering damper may be reqd.

Lower the rear if possible, then lower the front some more & so on.

Obviously care to be sure that the suspension won’t bottom out when you lower it & if ground clearance is a problem you will need to raise it up or move what scrapes.

[mr bucketracer]

So who still races a rg50 ? Thought I would get this old girl going345042

[F5 Dave]

That's the one that came to you with the barrel off after winning the GP. Wonder what size the other barrel was.

[jasonu]

The RG50 saved Buckets
The 100, 125 145cc rules Speedpro, Chris Picket and myself penned and submitted (by Speedpro) that morphed into the current set of rules saved Buckets
The now legal FXR150 saved Buckets

[mr bucketracer]

That's the one that came to you with the barrel off after winning the GP. Wonder what size the other barrel was.it had the barrel on it . He run that pricey fuel in it . Will be interesting what it dynos up at

[F5 Dave]

I thought Regan told me it was off.

[mr bucketracer]

We tried something new but not as good . Just got it running . Every is as it was apart from running a mx ignition than the stock one it had . I had no av only 1 letre of that pricey stuff . I should of backed the timing back but did a quick run . It made 12.7 hp345047

[jasonu]

We tried something new but not as good . Just got it running . Every is as it was apart from running a mx ignition than the stock one it had . I had no av only 1 letre of that pricey stuff . I should of backed the timing back but did a quick run . It made 12.7 hp345047

Mine made a hair under 11hp on a dynojet 100
Darren Gossamers bike was a rocket compared to it and this was in the mid 90's.

[mr bucketracer]

Mine made a hair under 11hp on a dynojet 100
Darren Gossamers bike was a rocket compared to it and this was in the mid 90's.we have mr pickets rg engine as well . He said it made like 11.5 and was what he said . Has some nice toque though

[mr bucketracer]

Mine made a hair under 11hp on a dynojet 100
Darren Gossamers bike was a rocket compared to it and this was in the mid 90's.yer Darren one sounded like a rocket

[F5 Dave]

Mine made 12.7 on Pete's dyno but Martin's bike made mine look pretty slow on those long Taupo straights. I was no where near. Cheating cunt. As always. Proved many times. He cheated because he was a liying little cunt. No offence. He raced a xuperstock RG150 and won a race. Disputed he just took off saying oh well don't give me points. Fuking cheater.

And he tried to rip off Dusty. Most meek person you'd ever meet. Only a cunt would try rip off Dusty. The only way he got his money was to send someone round to see him at an unsocial hour.

[jasonu]

we have mr pickets rg engine as well . He said it made like 11.5 and was what he said . Has some nice toque though

Yep 11.5hp. I was there when we dyno'ed it. It had a stock pipe that had been modified and a bigger (26mm?) carb. Mild porting.We found less is more especially with porting. We also cc'd and polished the combustion chamber on all out bikes, pretty much free HP.

[mr bucketracer]

Mine made 12.7 on Pete's dyno but Martin's bike made mine look pretty slow on those long Taupo straights. I was no where near. Cheating cunt. As always. Proved many times. He cheated because he was a liying little cunt. No offence. He raced a xuperstock RG150 and won a race. Disputed he just took off saying oh well don't give me points. Fuking cheater.

And he tried to rip off Dusty. Most meek person you'd ever meet. Only a cunt would try rip off Dusty. The only way he got his money was to send someone round to see him at an unsocial hour.

345070your mate

[Pumba]

Ah now I see what you were going on about. Got it going yet?

[mr bucketracer]

Ah now I see what you were going on about. Got it going yet?it go's......

[Dodgy]

F5 Dave, Ill never forget the Cold Kiwi weekend with you on the RG50 and me on the AS3. RG50 was faster!!!

[F5 Dave]

I went 6 times on that bike from Wellington despite much larger bikes in the shed. Yeah that was a good ride. Aircooled head on the AS3 was real pretty.