Sidi Crossfire 3 SRS Review – Best Motocross Boots


The Sidi Crossfire 3 SRS offers almost everything we could ask for in a pair of dirt bike boots.


Sidi designed the Crossfire 3 SRS with longevity in mind, almost everything is replaceable.


These boots offer superior comfort, however they might be narrow for some riders.


These boots provide the highest level of protection available.

What We Liked

  • Easily Replaceable Sole
  • Styling
  • Comfort

What We Didn’t Like

  • Replaceable sole doesn’t cover full foot like on the Sidi Crossfire 2 SRS

The Sidi Crossfire 3 SRS is the flagship offering from Sidi.  These boots are an improvement on the Crossfire 2 SRS, with a sole that takes just a few minutes to replace.  We have found that these boots are the best of the best and are what we ride with.  While expensive, they are designed to last a long time, and we don’t anticipate having to replace them any time soon.

These boots were designed with the professional motocross rider in mind.  They offer great protection for your ankle and foot, and have some build in designs to help better grip the dirt bike.  Additionally, most of the components on the boot are replaceable.  So if you break a strap, need a new sole, or somehow crack the calf piece, you can easily replace the part by unscrewing a few Phillips head screws.

One thing to keep in mind about Sidi boots is that they do tend to be a little narrower than normal.  I wear a D sized width tennis shoe and they are a perfect fit for me.  But if you are wear a 2E or some other wider width tennis shoe, you might find these boots a little too narrow for you.

Presenting the Sidi Crossfire 3 SRS

Sidi Crossfire 3 non bootie

Several years back, Sidi introduced their first line of Crossfire boots, the Sidi Crossfire.  Since then, this line has undergone a couple of upgrades and currently stands at revision 3.  Along the way, Sidi introduced their SRS system (Sole Replacement System) which has undergone a massive overhaul from the Crossfire 2 SRS.

Since the introduction of the Crossfire motocross boots, Sidi has staked their flag in the ground that they will provide the highest quality boots for pro level motocross and supercross riders.  Each revision has delt with a gap that needed to be filled.

SRS variant vs TA variant

I settled on the Sidi Crossfire 3 SRS.  Sidi also offers the Crossfire 3 in a TA model (or if you look on their website, it is referred to as just the Crossfire 3).  The main difference between the two versions is the sole.  The SRS stands for Sole Replacement System, which has been completely updated from the Crossfire 2 SRS.  The TA version does not have a replaceable sole, so when it wears out you are either going to need to buy a new pair of boots, or find a cobbler that can fix the problem for you.

The Crossfire 3 TA retails at about 50 dollars less than the SRS version.  However, if I am going to fork out the money higher than my truck payment for a pair of boots, I want them to last as long as humanly possible.  So, I opted for the SRS version because I can replace the sole.

Who was this boot made for?

Sidi designed this boot for pro motocross riders, and their target audience as such is going to be a race level rider.  I am not at this level, however I still got a pair because of the protection that they offer.

A while back, I had a very minor crash.  Right after my two sight laps, I decided to start twisting the throttle a little harder.  Going off a jump I misjudged, I ended up tumbling.  The bike was fine and it was a very minor crash, only enough to tear my pants.

It is funny how time slows down during an accident.  I had just gotten done doing a ton of research for my round up of the best helmets, so as I was tumbling, I was acutely aware of the forces on my head and how my helmet was reacting to them.  A one second tumble felt like maybe 10 seconds.  I hopped back up, thinking I was unscathed.

Cheap Dirt Bike Boots are an Expensive Mistake

Sidi Crossfire 3

However, I was wearing an extremely cheap pair of boots.  In a hurry, I purchased some O’Neal boots from Amazon that were in the 100 dollar range.  I figured that this was good enough for the style of riding that I do, plus I wanted to see what difference a good pair of boots and a cheap pair of boots made.  I bought them knowing they would not last too long and I would need to replace them eventually.

During the crash, I ended up spraining my ankle pretty badly and bruising several toes to the point that I lost the nails.  Not only was this extremely painful, I thought it was completely unjustified.  After all, this was a low speed crash.

As soon as I got home, I started researching a better pair of boots.  I wanted to nicest boots that you could get because I did not want to a) have to replace them often and b) get injured again in a minor crash.

I landed on the Sidi Crossfire 3 SRS.  So, if you are like me and are not a pro rider, but also can’t afford to get hurt on a minor crash, give these boots a good look.  As the old adage goes, Buy Once, Cry Once.  I don’t anticipate ever having to replace these boots.

What’s in the box

What you will find in the box is pretty standard for a new pair of boots.  The boots (obviously), and owners manual, and a few stickers.  Right out of the box, I was impressed with the level of quality that Sidi put into their products.  You can just feel the superior quality of the boots when you pick them up.  They are rather heavy, my size 44’s came in right around 9 pounds, but once they are on your feet you don’t really notice it.

Overview of Features

Sole Replacement System (SRS)

Sidi Crossfire 3 dove tail

The most standout feature of the Sidi Crossfire 3 SRS is their SRS system.  Sidi has offered the Sole Replacement System (SRS) variant of boots before.  There are other boot manufacturers that offer replaceable soles, however if you read further into it, they are replaceable by a cobbler.  So the other companies will sell you a new sole, but you need to get a cobbler to do the actual replacement.

Sidi changed the way they did it with the Crossfire 3 SRS and I have some mixed feelings about it.  On the Crossfire 2 SRS, the complete sole was replaceable, from toe to heel, and held in place with 17 screws.  On this newer version, the toe and heel are not replaceable (aside from getting them fixed at a cobbler) but the wear portion of the boot is replaceable with just 4 screws.  Easy enough to do at the track.

Why the Change?

There are a few reasons for this change.

First, Sidi found that most users did not wear out the toes and heels of their boots.  The vast majority of the wear they saw was in the middle of the boot, which makes sense because that is where you should be riding.

Second, with the Crossfire 2, there were user complaints of dirt and rocks getting up under the sole.  For instance, if you dab your toe during a turn and there is a way for dirt to slide between the boot and the sole, it’s going to do it.  With their new system and the toe being fixed, this should alleviate those issues.

Finally, the Crossfire 3 SRS replacement dove tails (the term used for the replaceable part) come in 2 varieties.  A motocross specific variety that is slick, and an enduro variety that has some tread to it.  So with one pair of boots and a dove tail replacement you can be covered for both riding scenarios.

The reason I have mixed feelings about this is that I really wanted something where I could replace the entire sole.  I get their reasoning, but I still think it would have been nice to be able to replace it all. 

The dovetails cost around 35 dollars, and if you need a set of 4 replacement screws, the replacement set is about 20 bucks.  So, for 35 bucks and 10 minutes you can effectively have a new set of boots.

Fully Rebuildable Platform

Sidi Crossfire 3 buckle

Outside of the toe and heel of the boot, almost every other part of the boots are replaceable.  This includes straps, wear points, plastics, you name it.  The parts are super easy to replace and don’t involve a trip to the cobbler.  Just grab your Phillips head screwdriver and in a couple of minutes you can have a brand new strap.  This makes the Sidi Crossfire 3 platform incredibly long lasting.

Ankle Pivot System

Sidi Crossfire 3 ankle pivot

New in this version, Sidi introduced an ankle pivot system.  Right when you put them on they are pretty flexible at the ankle, even before breaking them in.  Part of this system is a flexion limiting block that prevents hyper extension of your ankle, thus preventing injuries.

Non Bootie Design

When you compare the Sidi Crossfire 3’s against a boot like an Alpinestars Tech 10, one of the first things you will notice is that there is no bootie.  Sidi opted no not go with a bootie, which allows the overall profile of the Crossfire 3 to be more narrow than some of it’s counter parts.  This is a double edged sword because with a bootie design, if the bootie wears out you can just replace them relatively inexpensively.

The material that is used for the foot area is Cambrelle, which is abrasion resistant.  The upper area of the boot liner is made from a Teflon mesh material to resist against moisture.  It should be noted that these boots are NOT waterproof, but they still do a decent job of keeping water out.


When you look at this price level for motocross boots, there are three major players.  Alpinestars Tech 10 are extremely popular, and the Gaerne SG12 is another popular boot.  I don’t think you could really go wrong with any choice, however the Sidi came highly recommended from a friend, and having a do-it-yourself replaceable sole was one of my buying criteria.

Take a look at all three.  These boots are not cheap, so you want to make the best decision possible.  I feel like I have made the best decision with the Crossfire 3 SRS, but you may have different things that you look for in a boot, so go with your gut.

Wrapping Up

If you want the absolute best in a pair of motocross boots that will last and last, the Sidi Crossfire 3 SRS’s are your answer.  They are expensive, but if you ride a lot, you will appreciate them.  They ability to replace basically all of the parts on the boot platform, means that after you can replace the broken parts of these boots far cheaper than buying a replacement pair of any boot.  With less versatile boots, when you break them, you either have to send them off to be repaired if they are under warranty, or you have to buy and break in a whole new pair of boots.

Whatever you end up deciding to buy, I cannot stress enough the importance in getting a good pair of boots if you are doing anything more than very casual riding.  Not only are they much more comfortable, the protection that they provide for your feet simply does not compare.  Ride hard, and stay safe out there!