Swingarm Metal Fatigue - Dangerously brittle スイングアーム金属疲労

I noticed a "rattling" sound from the rear of the bike. On further investigation I found the rear mudguard / number plate holder was loose. I thought it was just loose bolts. Then, to my horror, I discovered the real reason the rear guard failed.
バイクのリアから「ガタガタ」という音がするのに気づいた。さらに調べてみると、リアマッドガード／ナンバープレートホルダーが緩んでいた。ボルトが緩んでいるだけだと思った。そして恐ろしいことに、リアガードが故障した本当の理由がわかった。

[@Aussietari]

Good video Ray.😊

[@DistantSuns]

Thanks!

[@cjserrano11]

Have you checked with SuperSoco and are they going to do anything about it? Really concerned cause I got the exact same bike and I’m a six foot, 200lb person. 😬

[@DistantSuns]

It's out of warranty so it's up to me to resolve the issue. I recommend that you check your swingarm every few months. Your swingarm may have come from a different metal batch and not have the same problem.

[@tjagarin]

My still looks ok(bike is 2 years old 3500km),will inspekt every few months.

[@DistantSuns]

Besides the poor metal quality, I think the very hard rear suspension helped contribute to the failure. Yes just a quick check every few months should be enough.