I love these pedals. I currently own three sets and they're the only pedal I recommend to people in search of a mountain-style, two-bolt, pedal. Durable, reasonable light, and functional.
This is about as much pedal as anyone needs.
It was very easy to install the pedals. I really think a clipless pedal is a major improvement over traditional toe clips. It took just a little bit of practice to learn how to engage and release out of the pedals.
Smooth-turning, tough, general purpose clip-in pedal. Works well for road or mountain biking I have the same style of pedals on both types of bikes and like the fact that I can switch bikes without worrying about different shoes. I'm still using other SPD pedals dating back eight years and they keep spinning without any problems. I put this pair on a new road bike. One quibble is that because they are double-sided, there is a slight weight penalty over single-sided clip-in pedals. Over than that, a great pair of pedals and, of course, delivered with Bike Tire Direct's speedy delivery service.
So I have been using Crank Brothers Egg beater pedal for years. I broke one once during a race, and have blown out bearings. So at the advise of many fellow racers I made the switch to SPD. These 540, XT & XTR pedals. Immediately with all three levels I noticed a larger, better platform under my foot. ( I use carbon soled MTB shoes) These pedal just feel solid. I did a race last week which was very muddy. These didn't seem to shed the mud like I remember egg beaters doing, but I could be wrong. I made this switch this within 6 months, so I feel to be more fair to crank bros I need to allow more evaluation time, but so far, IM liking the change.