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SPD vs. SPD-R(11 posts)

SPD vs. SPD-RTim
Feb 26, 2002 11:47 PM
My question is: what is the difference between the two systems?
re: SPD vs. SPD-Rspdplayr
Feb 27, 2002 5:46 AM
i believe the basic mechanism is the same. the difference is spd=mountain and spd-r=road.
re: SPD vs. SPD-RAndy M-S
Feb 27, 2002 6:11 AM
SPD was Shimano's original design; there are mountain dual-sided versions of these pedals and there were DA, Ultegra, and 105 single-sided versions. All could use the mountain cleats, but Shimano also made two road cleats--one with float, one without--that differed in that they could be equipped with "pontoons" to protect them when walking. The MTB cleats were assumed to be recessed into the shoe and so didn't need the pontoons.

SPD-R is a completely different system designed for road only. The cleat is a little larger, and the contact area between the pedal and the shoe is supposed to be larger as well. The mounting pattern for the cleat is entirely different as well.

Since I've never had a hotfspot problem with my Ultegra SPDs (and my feet are size 13!), I stick with 'em.
Different shoesSpoke Wrench
Feb 27, 2002 6:14 AM
Touring-type road riders tend to use the mountain-style SPD pedals because the small cleat recesses into the sole of the shoe and allows you to walk normally. The drawback is that the small cleat focuses all of your force on a small part of your foot and sometimes causes an undesirable "hot foot" sensation.

SPD-R cleats have a much larger area of contact with the shoe. This eliminates the hot foot, but requires the use of a shoe that forces you to walk like a duck.
Any reason to not use SPD's with a road bike?Kristin
Feb 27, 2002 10:17 AM
Someone (thanks, btw the shoes are awesome) recently provided me with a pair of road shoes. In the process of installing the cleats, I discovered that my pedals are not SPD-R's, as I had originally thought, but rather SPD's. They work fine for me as a new rider with very few goals. But I wonder if there are any compelling reasons to buy new road pedals. Or should I just stick with the SPD's?
Any reason to not use SPD's with a road bike?Andy M-S
Feb 27, 2002 10:30 AM
I'd stick with SPDs. Many companies make compatible road pedals (Shimano makes a low-end model, and Icon and Ritchey road pedals are SPD units). Or you can use MTB pedals--either ways, they'll work just fine.

Some people claim to have "hot spot" foot problems with SPD pedals, but I've never had any. I like 'em.
I ride pretty good equipment but...Spoke Wrench
Feb 27, 2002 10:40 AM
I'm afraid that if I put real road pedals on my bike people would expect way more out of me than I'm able to deliver. SPDs work fine for me. Course, I'm pretty much of a "restaurant to restaurant" rider.
Stiff shoesjtolleson
Feb 27, 2002 11:03 AM
I love using SPD's with an atb shoe for the walkability angle. Aid stations out in the dirt, 7-11 stops on backroads ... no biff, no worries.

But it does help to buy a VERY GOOD shoe, such as a Sidi dominator or a carbon-soled atb shoe. A shoe with any flex will definitely give you a palpable sensation of being on a smaller platform, especially if you spend much time out of the saddle.

Out of the club I ride with (many of whom are no slouches, though we aren't racers) I'd bet that 1/4 to 1/3 are in atb/spd combos.
SPD Road PedalsChen2
Feb 27, 2002 4:06 PM
Before SPD-R, Shimano made Dura-Ace and Ultegra SPD road pedals. The Dura-Ace 7410's were great pedals but the bearings were so good that you had to be careful on entry, if you hit the pedal with your toe they go into a high speed spin that it would take a while before they stopped spinning. I moved mine over to my wife's bike, she loves them, very light and aero-dynamic. They also have more float than other SPD's. I rode them 3 years before switching to Speedplay. Road shoes work fine with SPD's, I used and my wife still uses SIDI Genius road shoes with SPD's. But Shimano orphaned the 7410's in '98, guess they thought everyone would want SPD-R's. Yeah, right.
-Al
SPD's are fine.Len J
Feb 28, 2002 5:05 AM
Especially if you ever plan on doing long charity rides or commuting. I have them on my beater bike & have a pair of mountain shoes which are much easier to walk in (Cleat is recessed.)

Len
Thanks Everyone!Kristin
Feb 28, 2002 8:52 AM
Thats good to know. I won't worry about buying new road pedals any time soon. One thing metioned above that sounded curious... that SPD's don't come with pontoons. I have a pair of Shimano Ultegra SPD's (pre-6600) and they came with pontoons and SH-71 cleats. I just installed the pontoons on the road shoes. (Now I walk funny like everyone else!)

What a difference between the MS shoes w/the recessed cleat and the road shoes. I think the primary difference comes from stiffness. The LOOK MS shoes had a LOT of flex. I get greater power with the stiffer road shoes. I just probably made a poor purchase for my first shoe.