Just my experience, went through about two sets of Blumels before giving up. Both split with cracks. Could have been stones, whacks, not sure tbh, but only other mudguards I had crack were the VO ones before they started giving you the reinforcement plates for inside the drilled holes.
Also found they wobbles loads, particularly the front one, especially without both hands on the bars.
I could be unlucky, I'm sure way more people have plastic ones and they're fine.
Odd, I've had the same set of Bluemels for a few years, on a couple of bikes. Not very glamorous but just do the job and aren't showing any signs of packing in to give me an excuse to get something posher.
Just my experience, went through about two sets of Blumels before giving up. Both split with cracks. Could have been stones, whacks, not sure tbh, but only other mudguards I had crack were the VO ones before they started giving you the reinforcement plates for inside the drilled holes.
Also found they wobbles loads, particularly the front one, especially without both hands on the bars.
I could be unlucky, I'm sure way more people have plastic ones and they're fine.