Author Topic: primary chains  (Read 2456 times)

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Offline Zig

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primary chains
« on: June 09, 2010, 10:14:15 AM »
checked my chains, one is longer than the other?? can anybody direct me to a source for primary chains?? got a quote from Honda at 100$ a pop!!! ouch!
there was someone selling aftermarket heavy duty chains, on this site i believe but cant find the link now that i need em.
any help would be appreciated.
tia

Offline sangyo soichiro

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Re: primary chains
« Reply #1 on: June 09, 2010, 11:28:38 AM »
checked my chains, one is longer than the other?? can anybody direct me to a source for primary chains?? got a quote from Honda at 100$ a pop!!! ouch!
there was someone selling aftermarket heavy duty chains, on this site i believe but cant find the link now that i need em.
any help would be appreciated.
tia

Look in Doctor_D's build thread.  He gives a link to one source for them.
1974 CB 750
1972 CB 750 http://forums.sohc4.net/index.php/topic,57974.0.html
1971 CL 350 Scrambler
1966 Black Bomber
Too many others to name…
My cross country trip: http://forums.sohc4.net/index.php/topic,138625.0.html

Offline Retro Rocket

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Re: primary chains
« Reply #2 on: June 09, 2010, 03:45:39 PM »
Look up forum member Nippon, he has them,actually i have a set coming right now.... ;D

http://forums.sohc4.net/index.php?action=profile;u=2494

Send him a PM...

Mick

750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline nippon

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Re: primary chains
« Reply #3 on: June 09, 2010, 10:38:40 PM »
Yepp,
we have many of them in stock in Germany and a few in the USA.
With the current low EUR we can offer a pair of our reinforced primary chains (for non EU residents) for EUR 234,00 + shipping of EUR 15.00  to the USA,
if you want to get them from Europe, please contact: Thomas@classiccyclecity.de.
If you want to order in the USA, please contact Ted (Ted@classiccyclecity.com).
Data sheets are available here: http://www.classiccyclecity.com/gallery/thumbnails.php?album=48


nippon
« Last Edit: June 11, 2010, 11:01:22 AM by nippon »

Offline Ricky_Racer

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Re: primary chains
« Reply #4 on: June 10, 2010, 01:20:18 PM »
I just spoke by phone with Nippon. We'll also be adjusting our US prices to maintain parity with the Euro exchange rate, even on those chain sets we already have in stock. You're welcome to contact me at my PM of ted@classiccyclecity.com.  

BTW, if you're building anything hotter than a stocker, IMHO you NEED these chains!  :o  RR

I was put on Earth to accomplish a certain number of things. Now I'm so far behind, I'll never die!

Offline mystic_1

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Re: primary chains
« Reply #5 on: June 11, 2010, 04:46:42 AM »
I just spoke by phone with Nippon. We'll also be adjusting our US prices to maintain parity with the Euro exchange rate, even on those chain sets we already have in stock.

Does that mean you're raising prices to US customers since the value of the Euro is down compared to the Dollar?

Just wondering.

mystic_1
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traveler

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Re: primary chains
« Reply #6 on: June 11, 2010, 04:48:17 AM »
This is B.S.!!! >:(

Looks like you have no choice.....and they know it!

~Joe

Offline MCRider

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Re: primary chains
« Reply #7 on: June 11, 2010, 05:40:43 AM »
checked my chains, one is longer than the other?? can anybody direct me to a source for primary chains?? got a quote from Honda at 100$ a pop!!! ouch!
there was someone selling aftermarket heavy duty chains, on this site i believe but cant find the link now that i need em.
any help would be appreciated.
tia
The OEM chains, at least for the CB750, are around $100 for the pair, not a piece. They are sold as a pair, everywhere I've looked. Granted the fishies are not clear about this, but I'm 95% sure I'm right. Yamiya has them for about $80 pair. Should be fine for a kitted engine that doesn't see track style riding, ie hard up and down shifting.

The heavy duty ones sold ny Nippon/RR, are appealing in that primary chain noise is very apparrent in the CB750s especialy over time.

The currency exchange rates are at an all time extreme, I think. No intl business can stay in business without making adjustments.
« Last Edit: June 11, 2010, 06:01:14 AM by MCRider »
Ride Safe:
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1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

traveler

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Re: primary chains
« Reply #8 on: June 11, 2010, 09:29:34 AM »
So....If I see a 750 in my future...do I need to buy a chain before they become extinct?

Sounds like the shifting forks already went the way of the dinosaur.

Damn shame....these engines are such honeys. :(

~Joe

Offline Ricky_Racer

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Re: primary chains
« Reply #9 on: June 11, 2010, 09:49:08 AM »
This is B.S.!!! >:(
Looks like you have no choice.....and they know it!
~Joe

Joe, we're actually reducing the price, not increasing it. Irrespective of that, read the tech info at the link Nippon provided above. You're the best judge of what you're going to need in the future, but this chain material is in limited supply.  We think it's an essential enough part that we'll produce the heavy-duty CB750 chains as long as possible, or until it seems that there's no longer any interest. RR
« Last Edit: June 11, 2010, 02:47:49 PM by Ricky_Racer »
I was put on Earth to accomplish a certain number of things. Now I'm so far behind, I'll never die!

Offline MCRider

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Re: primary chains
« Reply #10 on: June 11, 2010, 10:02:25 AM »
So....If I see a 750 in my future...do I need to buy a chain before they become extinct?

Sounds like the shifting forks already went the way of the dinosaur.

Damn shame....these engines are such honeys. :(

~Joe

They come in pairs (not a single) and they are readily available from many sources, at a reasonable price. No fear of extinction. Stock chains will last longer than you'll have the bike. Mine had a total of 80,000 miles on them, including the stint as a (mild) roadracer. Upon examination they had 1/3 of usable life left.  They were getting noisy, but heck, they were old.

The HD primary chains are for those who want or need the extra strength.

Plenty of servicable shift forks on eBAy and the problem is not that common. Its just that when its your problem well its THE problem. New ones are available from Yamiya, but a bit pricy. I expect that will get better.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline nippon

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Re: primary chains
« Reply #11 on: June 11, 2010, 11:21:21 AM »
Hi,

i just want to put this in the right direction in order to avoid misunderstandings. First, you always have choice which chains you prefer.
The chains are Made in Europe. We have to ship them to the USA and we have to pay custom fees for them in the USA.
We charge our European customers by law with 19% sales tax which a non resident of the European community does not have to pay,
if he would order from the CCC company in Germany, because we would ship it outside of the EU.
So it would be a good deal to buy in Europe. According to the low exchange rate, our USA company get a better rate on this chains.
So, we are able to give the discount to our US customers.

BTW, our chains stretch only 1.5-1.7 mm the first 1000 miles. That's it. We never reached the limit of 70 mm with the reinforced chains like stock chains do. Stock chains stretch all the time when you drive, especially in race engines.
Which one is better? Which one you have to replace after thousands of miles, especially in race engines in order to avoid damages
on the crank sprockets? Why, do you think, so many racers tried the conversion with the (not well working) automatic Hi-Vo chains?
We just offer a great product and a big improvement in comparison with the poorly made stock RK chains which can be used w/o modifications.
Probably some technical background is needed to understand the advantages of these chains.
If anybody does not understand the technical advantages or the relations between the primary drive and chains,
then he does not need the chains and he should be happy with the stock chains designed in 1968 for a cheaper (not better) price.
The reinforced chains are 6 gr. lighter (each), newly developed technology and they are and much more stronger,.....probably something happened during the last fourty years in developing primary chains?
Very simple story.


nippon.
« Last Edit: June 12, 2010, 03:14:42 AM by nippon »

Offline MCRider

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Re: primary chains
« Reply #12 on: June 11, 2010, 12:32:05 PM »
Nippon: The ore we talk about these, the more I think i need them!   ;D
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."