Millal peaksin mootorratta ketti või ketirattaid vahetama?
Chains and sprockets are not invincible, even if we keep them clean, lubricated and well maintained, they will eventually wear out. Your chain passes through the sprocket thousands of times every minute, and the teeth on the sprocket slowly begin to wear out. After a period of time, the tips of the teeth may have a "hook-like" appearance. The same applies to your chain-over time, the pins, rollers and bushings will wear out, which effectively causes the chain to elongate and "stretch" to the point that you cannot adjust it.
On tungivalt soovitatav vahetada kett ja ketiratas korraga. Uuena sobivad ketiratas ja kett ideaalselt sama sammuga, mis tähendab, et need kuluvad aja jooksul koos. Kui kulunud ketirattale paigaldatakse uus kett, ei sobi keti samm õigesti ja see kiirendab keti kulumist. Samamoodi kiirendab uue ketiratta paigaldamine kulunud ketile ka ketiratta kulumist.
