What is that Noise???
I relate a small problem, which was easily solved,
but it worried me a lot while it was puzzling me.
My bike is a 2006 Wee-Strom, stock in almost all ways.
It was carrying a lot of gear (the load added to the mystery).
I was about 320 miles from home, at 5:00 PM, riding some pleasant highways in south Georgia. I was heading for home, and expecting to make it before midnight. The bike was running fine but I could hear an ominous clanking and rubbing, apparently coming from the front wheel. I stopped at a gas station, cautiously gearing down and finally using both brakes gently. I put the bike up on the center stand, and moved some cargo rearward to elevate the front wheel.
I inspected the front wheel, felt the disks, tried the brake, and verified all was in order there. No loose parts, both brakes squeezed their disks, and nothing wobbled or looked out of place. The rear disk was a tad warm, but that may have been from the stop. I wondered what I had overlooked, and I imagined some sort of calamity involving the front wheel locking solid at 70 MPH.
I finally decided to trust myself and the bike, and rode home, accompanied by the ominous clanking. I got home by 11:20 PM yesterday. I unloaded some cargo and went to bed.
Today I unloaded the rest of the cargo, and started to wash the bike, which was covered with bugs. I found the problem: the chain guard had shed its rear bolt, so the plastic guard and its metal brace had been banging away at the swing-arm. Yeah, I know I said the noise seemed to come from the front, and I guess the fairing channeled the sound from the rear into the vertical hole around the forks. My throw-over saddlebags, made from Goodwill knapsacks, had obscured my view of the chain guard.
I added a suitable bolt, with proper washer, lock washer, and nut,
and I reckon this problem will not recur for another 75000 miles.
I think the bolt at the rear end of the chain guard screws into threads that are part of the swing arm (any such threads on my bike apparently perished). If that is true, perhaps it is a good idea to substitute a longer bolt and add a lock washer and a nut. Suit yourself, and perhaps remember this anecdote if you hear an ominous clanking from below.