"Yamaha YZF-R6 RJ15: Good buy despite 55,000 km and cosmetic damage?"

Is this motorcycle a good buy? Here's what the seller says: **Yamaha YZF-R6 RJ15** The motorcycle was involved in a rear-end collision. The fork and frame are in perfect condition. It features various upgrades: – Motodynamic LED headlights with E-number (originals can be provided) – ShinYo darkened rear light – Darkened window (black window available)…