Was out on a spin yesterday and the rear of the bike became very unstable around 95mph. Got on to some slow windy roads and something didn't feel/sound right.

Pulled in and spotted this wear on the chain guard


Done a bit of reading here and concluded my chain needed adjusting. So came out to shed put the bike on centre stand and switched it on and put it into gear and there is some definite lateral movement of the chain from biting into the chain guard.

So I took off the front sprocket cover for a look and there is a lot of material built up on the inside of it and around that horseshoe shapes sprocket guard




With some definite wear inside front sprocket cover too.

Debris around front sprocket






Front side of chain guard


Any ideas?
Thanks

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