Ed Schultzwrote a review of Shimano SH-R170 Shoes on March 6, 2013
I've only ridden with these shoes a few times so far for hour-long rides, but I already love them. They are VERY comfortable. The fit is perfect, thanks to the half size increments. I got my shoes in white just in case there is any truth to the "cooler temp theory" during the hot summer days. But for fit and function, I have felt no "hot spots" while riding from any rubbing. My shoes are mounted on Shimano 105 pedals and I feel like my legs have become a part of my bike. Shoe closures provide great pedal stoke efficiency. The shoes are well vented, so in colder weather you'll definitely want to use some type of shoe covers. I rode with just toe covers this week on a windy 40 degree day and my feet stayed toasty warm.