Topic: CB72 or 77 racer

[bwaller]

Has anyone on the west coast ever seen this bike, or know Chuck Kraeuter?

[Old Scrambler]

Interesting oil-lines and frame mods8)

[MRieck]

Benelli colors?

[Haybus]

Have not seen it at the Washington races. Would be weird to race a 305 as they'd be relegated to the 500 class and likely get killed by the CB350 twins.

Alan

[Haybus]

Uh, what? Holy hell that's cool. Would be so awesome if it ran!!

http://www.core77.com/posts/20471/Chuck-Kraeuters-Immaculate-12-Scale-model-of-a-1966-Honda-RC166

[scunny]

googled him as well. yep that is a fine piece of work, the man has talent.

[RAFster122s]

Just needed this kind of soundtrack...

or this one:

Anna needed her own motorcycle helmet or fake one to go with the bike...and a thin cotton racing leathers outfit she wouldn't burn up in when playing Motorcycle Racer.  Wonder if she will grow up to ride, it is about 5 years since the article so she's around 8 now.  Another 8 years...what is vintage then

[bwaller]

Alan, you're right of course but if run as a 350 there are pre65 classes it would fit as well. There are just so few of these running.

[turboguzzi]

it could be run also as a 250 no?

brent, why the sudden curiosity about twins?

[bwaller]

Actually Yossef, I've been looking for a 250 for years. Many shared parts but not many out there. As a 250 there are fewer classes where it fits well. These have dodgy gearboxes and a single primary chain. A friend gave me (lent me  ) a set of engine cases, and with considerable work a gear driven primary & snazzy 6spd is possible by reversing shaft locations. Major project but something I've always found interesting. It absolutely doesn't make sense & I keep pinching myself back to reality! I found this bike and understand it had been crashed & sitting for a few years. I've received no reply from the owner....probably a good thing!

More than this maybe it's time for me to slow down a tad. 

[Haybus]

Oregon's vintage scene is mostly about small bikes now, but either a CB72 or 77 would have to compete in the class with 350cc multi cylinder limit. The smaller class is limited to 200cc for multi's. If you loved that motor, and had a good source of spare parts, I could see racing it for fun. If I wasn't the size of Andre the Giant I would love to race a small bike.

I had 2 frames and 3 motors I let go for cheap a few years ago. They were in the family since the 70's. One complete bike we used to ride out in the desert with a raked and gusseted front end, a desert tank and knobbie tires. We called it a 305 Dream -- it was neither, as I determined later in life.

Alan

[Old Scrambler]

http://www.honda305.com/forums/cb72-77-racer-t7635293.html

Lots of info about the 250 and 305 racers...............I show up on that forum from time to time   I have 23 motors in my shed. I have a few body parts but almost all are for the CL72 and CL77 models. I am completing my 6th restoration and have 3 of the CL72s to work on. Yes, 5 and 6-speed trannies have been done, and electronic ignitions are available. Two or more bikes have been modified with Suzuki dohc heads and one is known with a CB450 head. According to a retired engineer and past racing tech at HRC, the crank should be balanced at 73% of OEM to maintain sufficient pulling power to get away from the corners on tight-tacks. Metal chain tensioner rollers are available for racing............shares the same cam-chain and clutch plates as CB750. The cranks are pressed together; the cams are two-piece with center splines.........and Mega-Cycle has racing profiles. 

[seanbarney41]

Here is a build thread (on another forum) that may have some interesting information...
www.caferacer.net/forum/project-builds/29554-cb77-project.html

[bwaller]

Thanks Sean, that looks like Jag's bike, it has a lot of original Honda goodies. Plus he has a very cool frame as well.

A friend I race with owns a CB72 and although he's a very good rider cannot overcome the lack of power in a P1250 class against the 2 strokes and single Ducati's. He claims he doesn't know anyone rebuilding cranks anywhere but I can't understand what the issue is. There are always different big end brgs. Another legend from Aus. transformed two CB72's into both a 350 & a 500 using a CB450 crank. Jerry did extensive work on these bikes and with a young Levi Day riding won everything.

[Sam Green Racing]

http://www.honda305.com/forums/cb72-77-racer-t7635293.html

Lots of info about the 250 and 305 racers...............I show up on that forum from time to time   I have 23 motors in my shed. I have a few body parts but almost all are for the CL72 and CL77 models. I am completing my 6th restoration and have 3 of the CL72s to work on. Yes, 5 and 6-speed trannies have been done, and electronic ignitions are available. Two or more bikes have been modified with Suzuki dohc heads and one is known with a CB450 head. According to a retired engineer and past racing tech at HRC, the crank should be balanced at 73% of OEM to maintain sufficient pulling power to get away from the corners on tight-tacks. Metal chain tensioner rollers are available for racing............shares the same cam-chain and clutch plates as CB750. The cranks are pressed together; the cams are two-piece with center splines.........and Mega-Cycle has racing profiles.

Dennis, the one with the CB450 head was built by the guy that did the frame mods on the CR750 that I built but I can't remember his name, It was Pete something or other.

Sam.

[Sam Green Racing]

It was Peter Rhodes Dennis, I think this is the bike you mentioned.

[Retro Rocket]

Talk to Jerry Brent, he's the man with those old jiggers...

[bwaller]

Frank Gianini built a 77 with a DOHC Suzuki head. It's being raced.

Yeah Mick Jerry is a wealth of info on "transforming" these old engines. He sold the whole lot for a considerable amount. 

[Sam Green Racing]

Talk to Jerry Brent, he's the man with those old jiggers...

Old jigger,  an old CB77 drag bike that hasn't been run since the early 70s is set to be restored and put back on track in England.
It was over bored to 330cc and ran a 9.05 back in the day, some old jigger, hahaha.

[Old Scrambler]

Someday (soon?) I will likely be called an 'old jigger'..............but only when someone gets a faster time-slip

Based on what I have read..........the Suzuki heads share the same stud-bolt pattern with these Honda twins. The OEM motors really wake up with porting, better cam-profiles and larger carbs. The exhaust specs for the CYB-equipped Hawk include detailed megaphone shapes and lengths. Riding these bikes does not typically require a lot of braking and down-shifting.............it involves 'gliding under power' through the corners with minimal gross weight and skinny tires. Yes, a 6-speed would really help to keep the motor in the SCREAM-range of full power.....9000 RPM and up

My best motor to date did a ride around Lake Superior without a problem. When I took the bike to a VJMC-Rally a few riders commented on how they could hear me coming from more than mile away ...............of course I had minimal baffles and purposely kept the Rs in the power-band..........It was an attentive audience My next motor build will be a 330cc unit with XL350 suspension for some dual-sport rides.   

[RAFster122s]

Is the CB160 still being raced in the PacNW area?  I followed the Yahoo CB160 group for awhile as well as the CB160 Racing group.  It sounded like they had a blast but the problem became that stupid money was being thrown into the motors and suspension work taking the quasi sort of Spec Class type of fun vintage racing into one with deep pockets to develop the speed and consistency for  being able to be in the top of the points brackets (if you had the riding skills to accompany the performance).  Always wanted to give a CA95 a CB95 flavor with CB92/CB95 parts. The CB95 only made it to the US in very small numbers. But, then again I don't think the CB95 was made very long either or saw huge numbers in production.  The CB92's windscreen is very cool and adds a nice look to the squarish frame of the headlamp. 
http://www.airtech-streamlining.com/hondaz/CB92RBENLEY1961-62.html#price

But, you are talking CB72s and CB77s. 

So this is it?
http://matsusakaniku.blog55.fc2.com/blog-entry-279.html

 
Virtual Anime version of the bike, no?  Cartoon'd if nothing more.


http://www.cmsnl.com/cb72_model121/info

[/size]
David[/size][size=78%] [/size]

[Haybus]

Oh for sure, both in Washington and Oregon. Though I understand the 160 is relegated to B bike status and most people have a 175 as their main bike (class limit 182cc?). Not the grids of past, as I understand (20-30+), but regularly 12+ on their grids (WMRRA). We have a Lemans start race once a year for the 160 class. It's the only time I get to watch them (we're normally in front of them on the same grid) and they're super fun to watch. I believe the original bike that started the 160 race series is in our club, or so I'm told by the owner.

Alan

[Retro Rocket]

Talk to Jerry Brent, he's the man with those old jiggers...

Old jigger,  an old CB77 drag bike that hasn't been run since the early 70s is set to be restored and put back on track in England.
It was over bored to 330cc and ran a 9.05 back in the day, some old jigger, hahaha.

Hey, I didn't say us old, I mean those old jiggers were slow....    You should see Jerry's bikes Sam, they ain't slow either....

[Sam Green Racing]

Is the CB160 still being raced in the PacNW area?  I followed the Yahoo CB160 group for awhile as well as the CB160 Racing group.  It sounded like they had a blast but the problem became that stupid money was being thrown into the motors and suspension work taking the quasi sort of Spec Class type of fun vintage racing into one with deep pockets to develop the speed and consistency for  being able to be in the top of the points brackets (if you had the riding skills to accompany the performance).  Always wanted to give a CA95 a CB95 flavor with CB92/CB95 parts. The CB95 only made it to the US in very small numbers. But, then again I don't think the CB95 was made very long either or saw huge numbers in production.  The CB92's windscreen is very cool and adds a nice look to the squarish frame of the headlamp. 
http://www.airtech-streamlining.com/hondaz/CB92RBENLEY1961-62.html#price

But, you are talking CB72s and CB77s. 

So this is it?
http://matsusakaniku.blog55.fc2.com/blog-entry-279.html

 
Virtual Anime version of the bike, no?  Cartoon'd if nothing more.


http://www.cmsnl.com/cb72_model121/info

[/size]
David[/size][size=78%] [/size]

You need to join us here if you're on FB.

https://www.facebook.com/groups/199095796937023/

[Sam Green Racing]

Talk to Jerry Brent, he's the man with those old jiggers...

Old jigger,  an old CB77 drag bike that hasn't been run since the early 70s is set to be restored and put back on track in England.
It was over bored to 330cc and ran a 9.05 back in the day, some old jigger, hahaha.

Hey, I didn't say us old, I mean those old jiggers were slow....    You should see Jerry's bikes Sam, they ain't slow either....

It might be Mick but I doubt it will run an 8 second quarter mile, hahaha.