Originally Posted by
Leisesturm
Bada bing, bada boom.... This!
If you ever might want to use a 50m wide tire, you might want the wider fender. I use the Planet Bike fenders and they work fine with 50mm tires. When I switch to 1.5 (40mm) tires, the extra coverage does not bother me at all.
I have the wider fender with 26X1.5 Schwalbe Marathon (40mm) tires in the attached photo.