Topic: CB750 to CB550 Swing Arm Swap

[HondaMan]

Whats wrong with m6 zerks? The rest of the bike is metric after all

That's true! It's just hard around here to get metric ones for some reason. I even ordered them at my local auto parts store and they came in inch anyway, some screw-up somewhere. So, I have a whole box of them, now. 

[bryanj]

Difficult to get anything but over here in UK Mark, you want me to send you some?

[Rookster]

Or you could just get the exact replacements from Honda, part # 9620130001.  They only cost a few bucks and tap in like the originals.  Just use a tiny socket that fits over the rounded head to tap them in.

Scott

[newday777]

Amazon has a 30 count of 6mmx1.0 stainless steel zerk fittngs 

uxcell 201 Stainless Steel Straight Grease Fitting M6 x 1mm Thread Hydraulic Grease Fitting Accessories, 30Pcs https://a.co/d/eiSM0e4

[grcamna2]

I know it's been a while, but I just installed the 550 swingarm, and the chain is too short.

Any recommendations for new chains......this chain and sprockets, are fairly new, only about 500 or so miles on them.

I also install the brass(bronze) bushing, and wanted to replace the grease zerks, but lost confidence in doing so.

All else seems fine at this moment.

I replace those all the time. The originals just pull out. Grab them with a pair of vise grips and tap back. Somewhere I have a little package with the correct size drill bit and tap for a std. zerk fitting. It only takes a few minutes!

I spec. ordered some 5 x.80mm threads Zerk grease fittings which use a very light twist of an 11/64" drill bit;no sweat to start the tap for fresh Zerks in the original hole(on my bike)from the OEM grease fittings 

[WhyNot2]

Whats wrong with m6 zerks? The rest of the bike is metric after all

That's true! It's just hard around here to get metric ones for some reason. I even ordered them at my local auto parts store and they came in inch anyway, some screw-up somewhere. So, I have a whole box of them, now. 

So am I'm gonna have to use an offset sprocket on the front?

I'm using my 750 wheel with the 550 swingarm. Wheel fits fine in the swingarm with the spacers as usual.

[bryanj]

You will have to put a straight edge on them BUT more important is wheel alighnment, do that first then check sprockets

[grcamna2]

Whats wrong with m6 zerks? The rest of the bike is metric after all

The 5mm x .80 is closest to the original grease fitting fit in the part:less drilling,saves more material in case I want to go bigger(6mm)later.

[WhyNot2]

You will have to put a straight edge on them BUT more important is wheel alighnment, do that first then check sprockets

Yep, will have to do that. Have a new 530 -ring chain on the way.

Will wait for that. My current chain is too short with the 550 swingarm.

Decided to go with the original push in zerks at the moment, too lazy to do the work to install threaded ones.

[grcamna2]

Amazon has a 30 count of 6mmx1.0 stainless steel zerk fittngs 

uxcell 201 Stainless Steel Straight Grease Fitting M6 x 1mm Thread Hydraulic Grease Fitting Accessories, 30Pcs https://a.co/d/eiSM0e4

Zerks 

[HondaMan]

Zerks 

That's what I called the counter guys at the local auto parts store after they screwed up my order. I didn't notice they were SAE until I got them home.  They ordered the wrong ones after I told them I wanted metric ones.