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Rated 5 out of 5 by from Excellent All-Mountain versatility I'm an All-Mountain style rider which basically means I do a bit of everything. Cross Country is mostly what I encounter around my home but I've also ridden black diamond runs on Mammoth Mountain. I use these on my Santa Cruz Heckler and they are much better than my old Crank Brothers Candy C pedals. The M424 SPDs are much more stable on technical and downhill terrain yet climbing with them is no problem and I recently used them on a XC race (Racers and Chasers). Unlike my old Crank Brothers they are adjustable so clipping and unclipping are much easier. If you're like me and enjoy all kinds of riding, these impressively versatile pedals are for you.
Date published: 2010-01-17
Rated 4 out of 5 by from Could not be easier to install an use. This pedal was my first experience wit a "clip in" pedal and I am sorry I did not switch sooner. Installation took less than 5 minutes (you only need a 15mm spanner wrench). Directions are clear cut and thorough and getting acclimated to the "clip-in" process took less than 5 minutes (realistically 2-3 repetitions and I was comfortable). The feel is solid and there definitely is a feeling that you are a part of the bike and I agree with previous comments that I find my pedaling is more effective when compared to a standard pedal. I also purchased new Pearl Izumi cycling shoes and attaching the SPD (comes with pedals) clip to the shoe was easy and straightforward.
Date published: 2013-10-26
Rated 3 out of 5 by from Nice but... Pedals have a nice large platform so if you miss the initial step-in you can still stand on the platform or just mash on an uphill until you can re-adjust your foot. I ride alot of all mountain in the Bellingham area. Easy to get in and out of, have never had to adjust the tension. After about 10 rides I noticed the plastic frame had broken, don't remember rock bashing or any unusual fall. Probably better marketed to XC riders and commuters. At least I know I'll have no problem taking them back to REI.
Date published: 2012-06-16
Rated 5 out of 5 by from Great for a beginner This is my first experience with cleat pedals and it has been easy and effective. It took a little getting used to how to click in to the pedal, but once I did it a few times I got the hang of it. They have noticeably improved my efficiency and speed. You do NOT need to buy cleats -- they come with the pedals!!!
Date published: 2013-05-23
Rated 4 out of 5 by from Good inexpensive pop-up pedal I bought these pedals after trying a few different types/brands. I ride quite a bit of cross country, but I climb for the reward of a fast descent. I also ride clipped in when downhilling, and I found it difficult to engage the cleat into the other pedals I used. These pedals are easy to clip into, and if you don't get clipped in right away, you can still ride for awhile without it felling weird. I did recently break the plastic outer cage, but that was the result of a direct rock strike on the Downieville Downhill.
Date published: 2008-08-10
Rated 4 out of 5 by from Solid pedal, especially for the price I have been riding SPD pedals on all mountain and cross country mountain bikes for the past 15 years. I recently purchased this platform SPD pedal when I branched out to resort downhill riding. The reason I made this switch was due to a recent trip where I "sent it" off of a good sized jump on a black diamond trail and my right foot came out of my standard SPD pedal. Landing a big jump with 3 points of contact is an endeavor I did not wish to repeat. With the platform, even if you accidentally release from the SPD, at least you have something. I still ride rocky, technical sections where I may need to quickly release from the pedal so I do not wish to ratchet the tension too strong on the SPD. I've found this platform to be a reasonable compromise of stability and ease of release. Overall, the pedal has worked flawlessly. It is comparable in performance to more expensive models of SPD pedals. If need be, you can use this pedal without SPD compatible shoes. I have no serious gripes concerning this product.
Date published: 2013-09-01
Rated 5 out of 5 by from Great 1st Pair Of MTB Pedals Several people recommended pedals (and shoes) as the most important upgrade they made to their mountain bikes. It was good advice and I decided on the Shimano M424 pedals (and MT33L shoes.) These pedals offer enough platform for a brief ride without clips and easy entry with clips from either side. I wasn't sure if I'd transition well so this combination worked for me. The good: Installation was a breeze and I was able to get nearly instant appreciation for the gain in power. Surprisingly, I was confident enough to ride after just 20 minutes practice. (This is not typical.) I noticed tremendous gains when climbing and I felt more able to power over/through terrain I would usually have dismounted for. The bad: 1st timers, you will fall over. You need to train yourself to clip in and out. It eventually becomes second nature. Adjust your clips and teach yourself by leaning against a wall and clipping in and out. Then adjust your clips some more. Take your time to build confidence. Keep these clean. They're best in dry conditions. Overall: I'm happy with these pedals so far. I feel like I have gains in power, energy and endurance.
Date published: 2011-03-26
Rated 4 out of 5 by from The journey to go clipless First off I only gave them 4 stars because Shimano makes the PD-M545 pedal which is essentially the same thing with a medal cage rather than the plastic, which would be more durable or so I would think. Other than that these pedals are 5 stars all the way and I have yet to see any issue with the plastic cage, nor do I think I will ever have one. These are just my second pair of clipless pedals. My first pair where Welgo's (much like the Shimano M324 but way cheaper) and they were the type that had the flat pedal option on one side and the binding on the other side. I found this setup to be extremely aggravating on very technical terrain (if you're only riding bike paths or smooth trails it shouldn't be an issue). When I first tried these I was in heaven not having to think about what side the pedal was rotated on. The slightly recessed, angled binding and it's rotation on the spindle proved to be a huge advantage in getting into the pedal. These pedals are actually easier to ride on when not engaged into the binding with your cleat than the flat side of a pedal when wearing cleats. So my biggest advice is if your considering going clipless for some 'real' mtn biking go all in and get dual sided bindings because even with the 50/50 setup the clips on the bottom of your shoes will make it very hard to stay stable on the flat side of a pedal. The cleats are the second thing I would give advice on. The Welgo's I mentioned above came with the same SPD clipless binding and a set of the SH56 cleats, which are multi directional. I am now wearing the SH51 cleats (which com ewiht these pedals) which are only engaged/disengaged in the outward twist motion. I would recommend getting the multi directional SH56 cleats if these are your first pedals. I fell a lot to be honest, and the worst part was it was always when I was stopping (at slow speed)and the multi directional cleats will allow easy escaping from awkward falls. I've fallen way less on these pedals and have had a few very awkward positions I've had to escape from because of the one directional cleats. So in conclusion these pedals are great and if your pondering these or a 50/50 (flat/clipless) setup (like the Shimano M324)go all in, you'll save yourself a lot of frustration. It is still a decent sized learning curve but persistence is key! I'll still find use for flat pedals but there is no doubt that being attached to your bike provides very noticeable benefits while pedaling AND just ripping down and over some sick trails! Good luck!!!! Don't be afraid to laugh at yourself, it just makes riding that much more fun!
Date published: 2013-01-24
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Questions & Answers

Can these be ridden in tennis shoes on occasion or would the clips really dig into your shoes?

Asked by: Chris M
​According to reviews, you could pedal for short periods of time without clips. You may want to explore the pedal selection that offers both platform as well as clipless options.
Answered by: REIservice
Date published: 2017-12-11

Are these good for road cycling...I don't mountain bike.

Asked by: DatGurl
These pedals would work fine for road cycling, as long as the shoes you wear are compatible with SPD cleats.
Answered by: REIservice
Date published: 2015-09-20

Do these come with the multiderectional release cleats?

Asked by: drsluggo
​No, these pedals come with the Shimano SH-51 lateral release cleats.
Answered by: REIservice
Date published: 2017-12-04

What does 'pop-up' mean?  Can they be set down so when wanting to ride as flat this can be done? 

Asked by: Tomn
Pop-up means that the clipless mechanism is spring-loaded to rotate up slightly on the toe side, so they are easier to clip into. They cannot be converted into a platform pedal.
Answered by: REIservice
Date published: 2017-03-02

What tools are needed for installation?

Asked by: M1966
A pedal wrench can be used to torque the pedals to the appropriate torque specification. Here is a link to the pedal wrenches that we sell: If you need assistance with a pedal installation, then we recommend that you stop by your local REI bike shop.
Answered by: REIservice
Date published: 2015-09-20

Do these come with cleats, and what is the length and width of the plastic frame? Thanks!

Asked by: Gcollin
Yes, the M424 SPD Pedals will come with SPD cleats. With the resin cage, the pedal will measure 9.6 x 5 inches.
Answered by: REIservice
Date published: 2017-10-23
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