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@Breso
Since I changed chainring on my Pinarello pista (from 48 to 53) I start to have some click-crack noises when I push it really hard (only on the drive side tho). I thought was the gxp bb that needed a clean, but after I did, it didn't help... Chainring bolts are tightned... It might be the atac pedals or even worst the chain... The funny thing is, even after lubrificating the drivetrain, in sunny days the noise stays, but when wet/rainy it goes away... Wtf?