AMoney

I have Planet Bike Cascade 700 x 45 fenders on my touring bike. I like fenders. However, my front fender has been rattling so badly whenever I hit bumps that I temporarily removed the front fender. Now that the fender is off the bike it rattles when I shake it. Is there something I can do to prevent the fender from rattling? Or should I get a different front fender? Thanks

IPassGas

I have cascadia fenders. The greatest source of rattling is at the plastic breakaway tabs because the metal stays can move within the plastic tab. A fix... tighten the front screws while pressing down (rotating down) the front tabs. This forces the metal stays against the plastic and presto...rattling stops. Prior to this, I was ready to remove the tabs and connect directly to the stays. I have never (knock on wood) had a stick lodge itself in the spokes and catch the fender stays.

djb

no one likes a rattling fender, but your question unfortunately falls into the category of "internet people will not be able to figure out the problem" only you in person, with fender in hand, will be able to pinpoint where the sound is coming from and why.
Recently a friends bike front fender was rattling and its cause was the attachment point at the bottom of the fork, a washer was needed to take up space between the bolt and fender stay, but your problem could be elsewhere.

there are not that many contact/rattle possible points on a fender, so you should be able to find the exact area and come up with a solution.
When you pinpoint the spot, show a photo of it and perhaps people here can give suggestions to help.

Tourist in MSN

I sometimes wish my noise problem was as simple as a fender. Noises that you think are from the bottom bracket or pedal can be from over a dozen different places with all kinds of crazy causes.