Your drivetrain is shielded from the elements by our custom chainguard, but it's still a good idea to clean and lubricate it now and then – at least every six months. With regular use, you can expect your chain and cogs to last 6,000–8,000km before it needs servicing or replacement. If you notice a drop in performance, bring your VanMoof to the Bike Doctors, or have it checked by a qualified mechanic.