250-500cc Linkage Bolt

For the first time, I cleaned the linkage on my 2011 WR300 and the bolt (#20 in the part chart) looks small. It is the bolt that made the link between the linkage and the swingarm.
Can you say me if it is the good piece?

Thanks,

the thing to check are the needle rollers and the bearing sleeves, just push them out and lubricate before you re assemble, awesome clean
keep that up too you should minimise problems then.

grease preferably waterproof

Doesn't look right to me. Bolt looks too small in diameter and length.

Yes, look small for me too. Strangely,I never felt a slack in the suspension, anyway I will check to order the good part.

Thanks,

I'd have to agree.