Dooglas wrote:
Exactly right. The advantage of OEM parts is that they are endorsed by the manufacturer of the scooter. Aftermarket parts can be all over the map - good, bad, or indifferent. The responsibility is on you to determine the quality and applicability of a particular part yourself.
Thing is there are standards, and there are standards.
Yes, the headlight is marked for UK Road use. Is it any good, and will it last long? No, but I can tell that it's pants from a visual inspection. E mark sort of used loosely, but not illegally.
Bearings, on the other hand, need to be sized correctly and fit within certain tolerances (width, height, roundness, intended use/rpm/temperature). Any deviation can damage bearing seats, axles, other parts or less severely lead to premature bearing wear. One can't check that visually (neither can your average mechanic). And, there are a ton of fake SKF/NTN bearings out there, or just crap ones full stop.
So an OEM part in that respect (bearings being the working example, despite possibly being made in the same factory as others on sale) is a better bet to ensure it's at least genuine.
That said, OEM manufacturers do get things wrong too, but that generally leads to a recall and redesign (particularly where there's potential for litigation). There's an avenue for pursuing replacement/compensation depending on what happens to/with the part.
In my other thread, you'll see that I opted for Piaggio original braking parts (apart from the brake hose, which I ordered directly from Goodridge because it came with a cert proving that it was pressure tested - so many after-market hoses won't come with such a cert)β¦ not my shocks though (which I can visually inspect for leaks, and bounce on the bike to make sure they're still doing their job).
β¦anyway, it it beer o'clock yet?