Author Topic: Heavy duty primary chains  (Read 1874 times)

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Offline teebee67

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Heavy duty primary chains
« on: May 23, 2015, 03:58:59 AM »
Can anyone recommend a supplier of race quality heavy duty primary chains please?
I'm only old on the outside.

Offline Retro Rocket

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Re: Heavy duty primary chains
« Reply #1 on: May 23, 2015, 04:35:46 AM »
Can anyone recommend a supplier of race quality heavy duty primary chains please?

Member Ricky Racer, he's Classic Cycle City in the USA, he sells them, if you are in Europe try member Nippon, he's Classic city in Germany, you've also got CycleX in the USA they have a similar Heavy duty chain but with small holes in the rollers for a supposed better lubrication, I have the original ones from Classic Cycle city {without those holes} and don't see any need for the ones with the holes...
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 PeWe

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Re: Heavy duty primary chains
« Reply #2 on: May 23, 2015, 06:36:11 AM »
I ordered mine from Classic Cycle City in Germany. My engine runs now with less rattle. I think they are a little bit tighter than OEM.
I need better rods to match the chains, then bigger pistons to match the rods. Undercutted gears to match all these stuff together  ;D
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline teebee67

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Re: Heavy duty primary chains
« Reply #3 on: May 23, 2015, 07:41:06 AM »
Thanks guys, looks like Classic Cycle City then.
I'm only old on the outside.

Offline cbr954

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Re: Heavy duty primary chains
« Reply #4 on: May 23, 2015, 11:03:04 AM »
I just put a set of the Cycle X chains in my drag motor,  dont have any time on them yet though.  Will see how they hold up.  They look good though.
03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.

Offline MRieck

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Re: Heavy duty primary chains
« Reply #5 on: May 23, 2015, 01:30:00 PM »
They are out of stock at the moment
Owner of the "Million Dollar CB"

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Heavy duty primary chains
« Reply #6 on: May 23, 2015, 06:22:16 PM »
I just put a set of the Cycle X chains in my drag motor,  dont have any time on them yet though.  Will see how they hold up.  They look good though.

Are the CycleX 'rollers' actually rollers or are they stationary hence the oil holes?
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Retro Rocket

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Re: Heavy duty primary chains
« Reply #7 on: May 23, 2015, 07:00:35 PM »
I just put a set of the Cycle X chains in my drag motor,  dont have any time on them yet though.  Will see how they hold up.  They look good though.

Are the CycleX 'rollers' actually rollers or are they stationary hence the oil holes?

I could be wrong but i think the cyclex chains are the same as the classic cycle city chains, just with the oiling holes driller in the rollers...?

EDIT
I was wrong, completely different chains....
« Last Edit: May 24, 2015, 03:33:53 PM by Retro Rocket »
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 MRieck

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Re: Heavy duty primary chains
« Reply #8 on: May 23, 2015, 07:42:35 PM »
I just put a set of the Cycle X chains in my drag motor,  dont have any time on them yet though.  Will see how they hold up.  They look good though.

Are the CycleX 'rollers' actually rollers or are they stationary hence the oil holes?
They are fixed (stationary).
Owner of the "Million Dollar CB"

Offline PeWe

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Re: Heavy duty primary chains
« Reply #9 on: May 24, 2015, 03:31:55 AM »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline teebee67

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Re: Heavy duty primary chains
« Reply #10 on: May 24, 2015, 04:55:52 AM »
Thanks PeWe - that helps quite a lot.
I'm only old on the outside.