Birdy Front fender ?
 

... and needs to accommodate 18 x 2.0 Big Apple. One source quoted an eye popping $69, but that's a set of 2, which I certainly don't need.

I just ordered a Planet Bike 16" (I assume 349) Front Recumbent Fender. If my numbers are correct, the radius should be reasonably close. Has anybody used these on 355's?

http://www.niagaracycle.com/product_...ducts_id=34812

I guess nobody runs fenders...

I use standard Birdy mudguards. The diffs between 349 and 355mm wheels is insignificant for mudguard purposes. It would be very strange if the radius _didn't_ work. :)