Can someone please do me a favour?

The height of the swing arm hole is 15/16", or just under 24 mm.

If the pin diameter is exactly 24mm, it may juuuuusst fit, but it would likely be a force fit and scratch up the finish on the swing arm.

I just checked my dimensions and get exactly 24mm using a caliper for measurement. There will be variations because the weld bead is what is determining the opening size and that will vary from bike to bike, but there probably won't be too much variation. There is some space around the rear shock where you might be able to drop a chain through but that would be tight and a real hassle.

The smallest one you can get by with would be my choice.  Probably the small size. 

That's brilliant! I did think about using it to lock the wheel also, but I'm not sure how annoying it will get having to constantly move the bike about to get the wheel spokes lined up just right,...then again, it's an extra line of defence, so might be worth it.

Last question is, does anyone know the distance from the top of the chain guard to the centre of the swingarm hole? Just because it will need to be less than 87mm in order for me to feed the 'D' part of the shackle through initially.

Many thanks for all the help so far guys, very, very much appreciated!

Thanks owle, I am not planning to rely on just 1 security item, but I have all other items lined up, just looking at the main deterrent now which is a good chain. Originally I looked at 19mm, but I seriously want to use the frame to secure it to as front & rear wheels can be removed and the rest can be taken and stripped for parts. However removing the swingarm is not really possible. So I think I will be using that swingarm hole and the D-lock I put an image of above to go through the hole and attach to a 16mm chain.

Reason for going to 16mm is that it is equally impossible to bolt crop by hand as the 19mm, the only difference with the thicker chain is that it will take an extra 5-10 seconds to cut with an angle grinder, and if they are using one of them, nothing will stop them. Not to mention, the D-lock is 16mm thick, so a 19mm chain with 16mm lock is useless, as the lock is the weak point. A 16mm chain with 16mm lock will be lighter, cheaper and the lock will be equal in strength to the chain, so why spend more money & carry more weight with a 19mm chain if the lock is the limiting factor kind of thing.

Out and about I'll have a chain, 2 disc locks and properly installed bike alarm. At home I'll have the same along with a secure garage, CCTV & looking at getting a garage alarm also.

However I just need to know the distance from the top of the chain guard to the centre of the swingarm hole now if anyone can check it for me? Just because it will need to be less than 87mm in order for me to feed the 'D' part of the shackle through.

Thanks mate! So looks like I either need to remove the chain guard or looking at my first pic above I could maybe put one side of the 'D' shackle into the far right part of the hole in the swingarm with the other side of the shackle above the chain, but under the chain guard, just where the guard stops making contact with the swingarm.

Then I could have the red base of the D-lock in the wheel and if I purchased a longer 190mm shackle I could even lock it to a spoke on the wheel.

I think that would work well, as I would rather not remove the chain guard if possible. Purely because the local MOT tester insists on them being fitted even though the MOT book does not say a missing one is a failure, only a loose / insecure one should fail. I've also been pulled over for not having one, so to avoid any hassle it would be easier if I could do as I've mentioned above.

What do you think? is 87mm enough space to route the 'D' shackle as I mentioned above? Going into the far right of the hole and into the gap between the chain guard & chain? Also, will the far right of the hole accommodate the 18mm shackle? as it seems to narrow at the sides.

Thanks again

Those pics are 100% perfect mate!! Looks like the 87mm D-lock will fit as I mentioned (resting on the chain and going in the hole like your pics) without having to remove the chain guard. I think I will get the 130mm, and the good thing is the seller / maker of the D-lock will sell you just a spare 190mm shackle by itself later on if I want to use it to lock onto the wheel through the spokes. Only an extra £18 for a spare shackle. So I could use the smaller one when out and about and the bigger one at home as an added disc / wheel lock measure.

Thanks very much mate! That has answered all my questions.

I feel somewhat guilty....my FZ sits in my garage with the key always in it, no theft crime in the rural area where I live. Sad that there are areas in 1st world countries where theft of one's property is a constant threat. But we have to do what we have to do to keep ourselves and our property safe from the crooks of the world.