10 mm shorter swing arm bolt for RD350A

[Dvsrd]

I am now converting my RD 350A to cable actuated rear brake, and replacing the passenger peg/ muffler brackets with some alloy brackets that only mount to the 2 M8 lugs each side
This makes the stock swing arm bolt 10 mm too long. For now, I'll use aluminium spacers, but a 10 mm shorter bolt would be much better.
So, will a bolt from an other model or other brand fit?
Maybe TR350 or early TZ?

[m in sc]

just make a spacer, or thick washer.

[Dvsrd]

Just about to fire up the lathe and make 2 alloy spacers, 5 mm thick.
It is just that a shorter bolt would give just that little extra clearance for the brake cable and shifter linkage.

[m in sc]

use steel. ask how i know.

[Dvsrd]

use steel. ask how i know.

Point taken 😁

[1976RD400C]

Can you thread the bolt with a die 10mm more and then cut it off in your lathe to make it shorter?   

[Jspooner]

Can you thread the bolt with a die 10mm more and then cut it off in your lathe to make it shorter?   

I did this for the pivot bolt on my TZ replica. The frame is a TR3 frame and one side is threaded for the bolt to screw into with out a nut but I left it long enough to put a nut on it.

[oxford]

use steel. ask how i know.

Curious as to what alloy you had problems with?  I have heard 6061 is not really ideal for wheel spacer bushings, 7075 is a much better option.  I believe this came from Leo in the triples board.

[m in sc]

was 6061. but 7075 will also compress. steel is better for this application, just is. or, cut the end off as said and weld a 'new' end on. there's 10 different ways to do it.

[Dvsrd]

Can you thread the bolt with a die 10mm more and then cut it off in your lathe to make it shorter?   

It is easy to cut more thread in the lathe ("single point"), but I do not have a spare bolt in case I later want to go back to original setup.

[oxford]

was 6061. but 7075 will also compress. steel is better for this application, just is.

No arguments here.  I was just wondering.

[suey1958]

I have the same issue, not so much a clearance problem but sure would look a lot nicer if it was shorter instead of using a washer(s).
I have replaced the the grease fittings on both sides with short allen screws that are flush with the pivot bolt ends. They are of course removeable to replace grease zirks to add grease.

[bitzz]

Pretty sure all the TR and TZ swing arm pivot bolts are the same length, about 10mm shorter than the RD
The TR and TZ bolts have a M16x1.0 thread and the RD has a M16x1.25 thread.

[m in sc]

cut the threads off except 1 past the bolt. 

[klaird]

Is it possible to reverse the bolt and have long end on the left side?