Originally Posted by Stezzy

ok well since pricing is similar between the SPDs and the SPD-SLs is there a quality difference or is it just a personal preference difference? will i get better performance out of lets say the r540s then i would the m520s or are they pretty similar in that sense also

Originally Posted by carleton

MTB pedals are made for quick entry and to shed mud. The shoes allow for walking/running through the woods as in MTB and Cyclocross racing. Road shoes will be much stiffer and more comfortable for longer rides. The pedals will have better float systems. So, for short rides and on/of riding and walking, MTB pedals are better. For longer rides where you are on the bike for the majority of the time, Road pedals are better. When you do equal amounts of each...it's a toss up. But, I'd prefer the road systems.