Author Topic: Top Fork Bolt Off 4into1: It's Not Threaded for the CB500K Damper Rod. Useable?  (Read 1243 times)

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Offline Trad

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Hey Guys,

http://4into1.com/genuine-honda-fork-tube-bolt-35mm-90123-300-000-cb450-cb500-cb550-cb750/

I bought these top fork bolts for the cb500 forks I'm running on my 550. The website states it compatible with the 450 all the way up to the 750. It is the correct threading for the fork tube but it is not threaded for the damper rod on my 500 forks.

How essential is having this nut thread into the damper rod? I see no issue in functionality, what I can understand is that if I for some reason did a wheelie, the lowers could pop out with the wheel.

Any one using there on there 500 forks?

Thanks,



« Last Edit: October 24, 2013, 07:49:53 PM by Trad »
74 CB550 Build: NOS-GUTTED-OEMplus-HOLDTRUE
http://forums.sohc4.net/index.php/topic,130575.0.html

Offline Trad

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Re: Bought Top Fork Bolt Off 4into1 and It's Not Threaded.........
« Reply #1 on: October 24, 2013, 05:58:37 PM »
Ebay bolt is the same part number and also claims to be correct for the CB500

http://www.ebay.com/itm/Genuine-Honda-Fork-Tube-Bolt-35mm-90123-300-000-CB450-CB500-CB550-CB750-/181226040943
74 CB550 Build: NOS-GUTTED-OEMplus-HOLDTRUE
http://forums.sohc4.net/index.php/topic,130575.0.html

Offline bryanj

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The metal is not hard and the thread is standard so just drill and tap them to take the damper rod, And yes if you get the front high enough the sliders will fall off, BUT worse they dont have to fall that far to jam!!
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline martin99

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Bryan's right. Accident waiting to happen. I'd send them back and buy the correct ones.
Build threads:
77 750F2 Refresh Project http://forums.sohc4.net/index.php?topic=144075.0
TRIBSA http://forums.sohc4.net/index.php/topic,160296.0.html

1977 CB750 F2
1958 Norton Model 99
2011 Triumph Street Triple 675

Offline Trad

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Correct bolts ordered up. These one are listed in the classifieds if anyone's interested.

Thanks for the help.
74 CB550 Build: NOS-GUTTED-OEMplus-HOLDTRUE
http://forums.sohc4.net/index.php/topic,130575.0.html