No probs w/plastic Zefals, but with aluminum...
I've carried my singlespeed with plastic fenders up to 80-85 for several hundred miles without any trouble, but I think your concern about aluminum might be valid. Don't see a fix for it, though, except to try it out. As for holding the speed to 50...doesn't seem realistic to me, but I live in the wide open West, where the de facto Interstate limit is 80+.
I've carried my singlespeed with plastic fenders up to 80-85 for several hundred miles without any trouble, but I think your concern about aluminum might be valid. Don't see a fix for it, though, except to try it out. As for holding the speed to 50...doesn't seem realistic to me, but I live in the wide open West, where the de facto Interstate limit is 80+.
