What type looks best is purely going to be your call. I have a D&M spike that is black diamond cut to match all the other diamond cut goodies on my limited edition bike. I also like the Performance Machine line that matches my Roland Sand Judge wheels. Also consider performance, some filters can get you a few more horses than others. There are so many options, when the site picture gallery gets fixed start flipping through and looking at what others have done. Then you make the call of what catches your eye. Enjoy, I know I'm like a woman at the mall when it comes to getting shit for my Big Dog. I LOVE IT.