Er YUK .

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Must Admit , Its had me checking out CB 750 Engine Prices . :shock: :cry: :oops:

A CB 750 powered Rob North BSA / Triumph Triple , custom built for Pipers . :|
raced 75 I think , so eligable for something presumeably .



Parley Vous : http://moto.caradisiac.com/Les-essais-qualificatifs-478

Later Guise ( had 4 - 1 in the 70s , I think .

http://www.classiccyclecity.com/gallery ... play_media


mentioned a 900 motor , replaced by a CBR 750 around 94 , in a magazine artical . hence the Er . . . intrest . . . :mrgreen:



Originally Raced wearing a TZ 750 Fairing , 9th in British F 750 ??? Championship . 75 .
 

Fast Eddie

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Matt Spencer said:


Must Admit , Its had me checking out CB 750 Engine Prices . :shock: :cry: :oops:

A CB 750 powered Rob North BSA / Triumph Triple , custom built for Pipers . :|
raced 75 I think , so eligable for something presumeably .



Parley Vous : http://moto.caradisiac.com/Les-essais-qualificatifs-478

Later Guise ( had 4 - 1 in the 70s , I think .

http://www.classiccyclecity.com/gallery ... play_media


mentioned a 900 motor , replaced by a CBR 750 around 94 , in a magazine artical . hence the Er . . . intrest . . . :mrgreen:



Originally Raced wearing a TZ 750 Fairing , 9th in British F 750 ??? Championship . 75 .
There's nowt YUK about that Matt! Nice lean, mean, purposeful looking bike. Dave Degens (Dresda Autos) was very into big Honda's in the 70's. I once challenged him by saying the BSA / Triumph triples were better racers... he practically spat at me! He had them out to nearly 1000cc and in his words, no Brit bikes were even comparable.
I'd ride that Honda / North any day!
 
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A genuine Rob North 750 Honda

the middle pic is of Peter Linden riding the Sweatshop ex works P&M Kawasaki at last years Classic Endurance chammpionship (they won the championship) not a Rob North
 
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I've really got the hots for that bike, I would love to race it. There are about 14 bikes like this one which dominate Period 4 historic racing in Victoria (1963 to 1972), they look like 70s AMA superbikes to me. At least the one you've posted looks authentic - it is what the CR750 was. :

 
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I believe that modern noise laws have stuffed many of the bikes which race in Australian historics these days. If you tried to race a genuine CR750, the organisers would jump all over you. To my mind a Honda4 historic racer should have rear sets, clip ons, race tank, four megaphones and a proper race cam. What I see racing these days are much easier to ride, however don't really contribute to the nostalgia kick, which is an important aspect for spectators. Perhaps I'm just a silly old fart - past my used-by date ?
 

ML

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acotrel said:
I believe that modern noise laws have stuffed many of the bikes which race in Australian historics these days. If you tried to race a genuine CR750, the organisers would jump all over you. To my mind a Honda4 historic racer should have rear sets, clip ons, race tank, four megaphones and a proper race cam. What I see racing these days are much easier to ride, however don't really contribute to the nostalgia kick, which is an important aspect for spectators. Perhaps I'm just a silly old fart - past my used-by date ?
YES you are past your use by date - witness from Eastern Creek 2 weeks ago - the 2nd place Dean Outread 980 Honda as per Team Hanson Daytona replica which has all the things you say aren't there anymore, and the 1st place winner Terry Martin's Rob North Trident 860.



 
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acotrel said:
I bet that this bike would be a hoot to ride.
Obviously a hotrod bike, so I find the stock style airbox interesting. It of course works for them,
I guess I just expected to see something more "exotic" (velocity stacks, etc)
 
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Back in the 70s Tony Cacciotti used to ride the Bill Patterson Honda CR750. He told me that when Rex offered him the rise on his bikes, that he (tony) was a bit apprehensive because he could remember what the CR750 was like. When he rode Rex's bikes he said 'this is easy, I can do this'. They are a different thing to the CR750 - much bigger capacity and nowhere near as nasty. When the CR750 was being raced, the main opposition was Frank Mussett's Triumphs - a 750 Trident and a 750 twin, usually ridden by Pommie Pete Allen, who actually married one of Frank's daughters. I don't remember ever seeing Tony beat him with the CR750.
Frank had the Triumph dealership in Brunswick, Melbourne - used to be a works rider for Velocette in the 30s.
I'm interested in the CR750s which were run at Eastern Creek. Most of our Victorian 4 cylinder Hondas have 4 into one exhausts these days to get by the noise measurement. NSW might be different to Victoria as far as the EPA and local councils are concerned ?
 
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Mark said:
acotrel said:
I bet that this bike would be a hoot to ride.
Obviously a hotrod bike, so I find the stock style airbox interesting. It of course works for them,
I guess I just expected to see something more "exotic" (velocity stacks, etc)
The air box is there to reduce noise.......I did a track day last year on my BMW airhead, it failed the noise test which was 101DB @ 5500 revs. The bike was not standard and included an air box that was open at the top, when I redid the noise test I put my gloves on top of the air box to reduce induction noise.
 
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Good to hear the riceburner got its comeuppance , ML .
Do you know the Kawasaki ' flyers ' condition ? healthyer than his bike , I would hope . :shock:
 
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ML, I'm really glad that somebody has a CR750 going these days. Most of the guys in historic racing these days would not have seen the Bill Patterson one in Victoria. I believe it is still here in a showroom somewhere. There are about 3 Rob North triples which have turned up to the Broadford Bonanza and done demo rides, however I haven't seen any actually racing for a long time. I think the best bike in Victoria is Scott Webster's Moto Martin / Kawasaki Z900. I believe it is a European built endurance racer, and actually looks like a racing machine. We didn't have that sort of racing in Australia, so we didn't see the bikes here. I believe he has two of them, and they are to die for.
Matt, if you want a really bad fright, build yourself an H2R out of an H2 road bike.
 
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chasbmw said:
The air box is there to reduce noise.......I did a track day last year on my BMW airhead, it failed the noise test which was 101DB @ 5500 revs. The bike was not standard and included an air box that was open at the top, when I redid the noise test I put my gloves on top of the air box to reduce induction noise.
Interesting, Ya learn something new everyday.
 
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The sound track on the manx Norton clip is revolting.
I've actually built two two stroke racers - a methanol fuelled T250 Suzuki and an Egli based H1. If you want trop win races they are the way to go. I recently made a conscious decision and sold an excellent Yamaha TZ350G to buy the 6 speed TTI box for my Seeley 850. Two strokes are easier and sometimes cheaper to race, especially if you want to win. However I like a bike which you can really come to grips with, no anxiety, and you can feel the hair growing on your chest. Two strokes are simply a pain in the bum, especially on methanol.
A Rob North Trident would be a beast. I've seen one which was 900cc and on 14 to one comp. It pulled the back out of the crankcases, and the ignition system could not keep up with it.
 
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Generally on ill mannered poorly maintained old cranks , you can only get the thottle on in a straight line . Like on the H2R :) :lol: . Notably the NORTON is On the Throttle , ya must need knew hairfones , :D :wink:
 
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These days a lot of the young guys use the point and squirt technique even when riding fairly torquey four stroke bikes. A while back I asked if anyone had ever hi-sided a commando. It seems the only way it happens is when the drive train fails and locks the rear wheel. As a kid I was brought up racing on rock hard tyres, so these days if it rains I am at an advantage. It is only in fairly recent times that I've had decent tyres and it amazes me how hard and how early I can get on the gas with my Seeley 850. Coming out of corners you can give it a really good strong healthy squirt while it is still cranked well over - you don't need to have it upright.
Many years ago I broke a rear chain as I accelerated my Triumph Tiger 110 out of a corner. The chain wrapped around the sprocket and jammed into the chain guard, locking the rear wheel. The bike stood up and threw me into the air - I fell on my head and broke a helmet. If you ride a two stroke, you simply adjust to the power band - I've never ridden one that was worse than my short stroke 500cc Triton.
 
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