Just go with the best possible quality and it will also last long - in my book that is DID.

You can also choose a chain wheel with an alu center and steel teeth: http://www.off-the-road.de/XT-660-Z-...er-XT-660.html

Kedo gives a 2 year or 20.000km warranty on their DID VX2 gold chain kits. http://kedo.com/products/92684.html with standard 15/45 but just ask for 46 instead if that is what you wants.

(And a 1 year or 10000km on the slightly cheaper VX chain)

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2011 Yamaha XT660Z ABS T�n�r�.

• Puig +8cm dark screen, Garmin Zumo 220, Scottoiler eSystem v2
• Barkbusters Storm with external weights, Noname 30mm bar risers & EzMoto alu. levers
• Kev's O2 Controller, Mccoi stepless controller with Hein Gericke heated grips
• TT +4cm seat, Pivot Pegs, Altech stainless sprocket cover