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The Abrasion Resistance of Denim?

7.1K views 29 replies 15 participants last post by  WW Smith  
#1 ·
I've been trying to find some info if heavy weight denim jeans are adequate in abrasion protection to wear while riding.
The info is all over the place.
From some sites that claim denim jeans are worthless and will shred the moment you hit the pavement.
To one site listing their top 5 picks of riding pants, the #3 pick is regular heavy weight denim jeens.

Yes, I know Leather, Cordu and Kevlar/Aramid have greater abrasion resistant, the info I'm looking for is Heavy Weight Denim adequate for riding pants?

And I'm also aware there are spandex yoga pants that look like jeans, comfort denim, etc. I am talking about heavy weight denim work Jeans for riding.
 
#3 ·
No I don’t think heavyweight denim is good enough without a Kevlar/Aramid backing and armor …

I’ve been wearing Iron Workers Harden Jeans …
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I’ve had this pair about 2.5-3 years … it has CE Lv1 knee armor and I bought CE Lv1 hip armor as well …
I alternate my motorcycle Jean but I wear a pair at least 5 Days a week … this pair is getting a little thread bare … I have not gone down in these except for slow speed practice… This is just normal wear … (I have patched them) … The Aramid is still intact …
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The inside is lined with a nylon mesh plus Aramid … The Aramid is on the sides and knees in the front …
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And covers your butt …
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I expect the Jean material to shred and the Aramid to save my butt … up to about 40-50 mph … over 50 mph … I honestly don’t know …
They are comfortable and I wear them at work both with and without the knee armor …
 
#4 ·
While that is far more quality info than I had found so far. I've still got to wonder? I have yet to encounter a road that has the surface of 40 grit sandpaper? Perhaps some concrete, but especially where I live, that is about 0.1% of the road surface I travel over. And dragging jeans behind a go cart for a mile with only 40 lbs in them? How is that anything like going down in a bike?

Has anyone just tried at test of putting the different pants on a 200lb dummy and tossing it out the back of a pick-up at 55mph?
 
#8 ·
Thought I had a picture of the jeans I was wearing over these Pando Moto armored Dyneema tights when I low sided at about 30mph, but where the holes are in the Pando Motos, the jeans were shredded. Several other spots too. The gear worked. I won't say the jeans did nothing, but I would definitely have had road rash had that been all I had on.

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#9 ·
I work in a 1000 bed hospital. Ask any casualty nurse or consultant what they think of denim jeans for motorcycle protection for an honest unbiased opinion! After all it is they that have to deal with the carnage afterwards!
 
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#10 ·
Considering most accidents involve sliding on pavement which is like landing on a giant belt sander I can see how denim by itself wouldn't do much good. Depends a lot on your luck if you're not protected.
 
#12 ·
Jeans did a better job than my t-shirt statement turned me into a 5 year old girl whose brother dropped a handful of worms down the back of her shirt. Jesus dude. I haven’t even had my second cup of coffee yet.
 
#14 · (Edited)
While that is far more quality info than I had found so far. I've still got to wonder? I have yet to encounter a road that has the surface of 40 grit sandpaper? Perhaps some concrete, but especially where I live, that is about 0.1% of the road surface I travel over. And dragging jeans behind a go cart for a mile with only 40 lbs in them? How is that anything like going down in a bike?

Has anyone just tried at test of putting the different pants on a 200lb dummy and tossing it out the back of a pick-up at 55mph?
This is really funny. Now I wanna watch that video.
While I could see how a video of that kind of test could generate some laughs;

Think about it, which do you think would be more reflective of actually going down on a bike?
Shooting pants with BB guns, setting them on fire, dragging them behind a go kart for a mile with a 40lb sand bag in them, taking a belt sander to the pants (that one might have some value, but what is the relative scale, i.e. is it the same pressure, same coarseness, do they abrade through at the same rate).

Tossing a human shaped dummy of the same weight, wearing the pants, on to the road moving the same speed, welp, that is going to be pretty darn close to actually going down on a bike.

This is for a helmets vs no helmet, and yes, I could see how the whole body dummy could get funny, this is more just eye opening kinda of gory....
 
#15 ·
While I could see how a video of that kind of test could generate some laughs;

Think about it, which do you think would be more reflective of actually going down on a bike?
Shooting pants with BB guns, setting them on fire, dragging them behind a go kart for a mile with a 40lb sand bag in them, taking a belt sander to the pants (that one might have some value, but what is the relative scale, i.e. is it the same pressure, same coarseness, do they abrade through at the same rate).

Tossing a human shaped dummy of the same weight, wearing the pants, on to the road moving the same speed, welp, that is going to be pretty darn close to actually going down on a bike.

This is for a helmets vs no helmet, and yes, I could see how the whole body dummy could get funny, this is more just eye opening kinda of gory....
No, I’m with you. Best test would be to have a rig that dumps the dummy off to the side at various speeds. I also get where you’re coming from. There are denim jeans that are very heavy duty. I’d be more comfortable wearing those over a pair of slacks.
 
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#16 ·
I have a pair of Pando Moto, 2 pair of Rokker, and a pair of Dainese jeans. All are Kevlar lined and also have armor pockets.
Jeans by themselves are better than nothing, but even heavyweight denim will wear through quickly & offer zero heat resistance in a slide.
Jeans also lose more and more structural integrity each time they’re mechanically washed. I handwash my riding jeans once a season with woolite and line dry them. If they start to get a bit funky, they get put into the freezer for a bit to kill the stinky bacteria.
 
#17 · (Edited)
No, I’m with you. Best test would be to have a rig that dumps the dummy off to the side at various speeds. I also get where you’re coming from. There are denim jeans that are very heavy duty. I’d be more comfortable wearing those over a pair of slacks.
First moment I saw your comment, I did think you might be trying to be insulting, but I took a breathe and envisioned throwing a dummy out of the back of a truck, and realized, you know that would make me laugh.:ROFLMAO: So I figured that was what you were getting at.

Right now I have a pair of Wrangler Riggs Workwear Jeans to ride. They are the heavy 14 oz denim and they seem stronger than other brands 14 oz denim. They are doubled up on the thigh, knee shins, extra protection, but not on the ass and back of legs.
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So you guys convinced me, before next riding season, I'm going to invest in some Jeans fully lined with Kevlar.

I've been wearing this over my t-shirt in warm weather and wear under light jackets in cooler weather.
Endogear Inner Motorcycle Riding Shirt with CE Armors Lined with 100% Genuine Dupont Kevlar
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It breathes well, so while moving its not much warmer than just a T-shirt.
How well it actually works? I don't know, it doesn't seem that tough by the touch, which is not a good way of accessing its abrasion resistance. At the same time, when I touch the thin Kevlar lining in pants or other clothing it doesn't seem that tough either.
The biggest problem with protection if you go down, although its a pretty tight elastic fit hugging you, it does seem like it wouldn't take much to pull up the bottom of the shirt or sleeves as you roll/slide and expose you underneath to road rash.
 
#19 ·
First moment I saw your comment, I did think you might be trying to beng, but I took a breathe and envisioned throwing a dummy out of the back of a truck, and realized, you know that would make me laugh.:ROFLMAO: So I figured that was what you were getting at.

Right now I have a pair of Wrangler Riggs Workwear Jeans to ride. They are the heavy 14 oz denim and they seem stronger than other brands 14 oz denim. They are doubled up on the thigh, knee shins, extra protection, but not on the ass and back of legs.
View attachment 771591

So you guys convinced me, before next riding season, I'm going to invest in some Jeans fully lined with Kevlar.

I've been wearing this over my t-shirt in warm weather and wear under light jackets in cooler weather.
Endogear Inner Motorcycle Riding Shirt with CE Armors Lined with 100% Genuine Dupont Kevlar
View attachment 771593
It breathes well, so while moving its not much warmer than just a T-shirt.
How well it actually works? I don't know, it doesn't seem that tough by the touch, which is not a good way of accessing its abrasion resistance. At the same time, when I touch the thin Kevlar lining in pants or other clothing it doesn't seem that tough either.
The biggest problem with protection if you go down, although its a pretty tight elastic fit hugging you, it does seem like it wouldn't take much to pull up the bottom of the shirt or sleeves as you roll/slide and expose you underneath to road rash.
Oh yes. You’ll be hard pressed to find me attacking someone. I enjoy hearing all kinds of idea and thought processes. I’ve gone down wearing jeans and had minimal injuries. I’ve gone down wearing a full adv suit and had zero injuries. I’ve also gone down wearing work pants and they shredded off my ass and I had to pick fabrics out of my own meat. You’re rolling the dice no matter what.
 
#20 · (Edited)
Based on what you actually asked for, visit Duluth Trading Company website. Look for Fire Hose Cargo Pants. They come in "regular" and "relaxed" fit as may suit you. I suggest getting them in the next size longer than you wear for street clothes. Seated on a cruiser, pant cuffs ride up a bit. Also, they will shorten slightly over time. When I am wearing them in house without shoes, I just turn up the cuffs until I'm back in the saddle. Cargo pockets allow you to keep your back pockets empty for a more comfy long ride. Avoid any models with the word "Flex" in the name (a bit stretchier, but thinner material). I started wearing these about six years ago; they're my only riding pants now. Still have the first pair. They're in fine shape, though faded from umpty-thousand miles of all weather riding. Duluth also has a model with fleece lining. I recommend them if you're riding in colder seasons.

I have not yet gone down riding, and I doubt these pants would go far in protecting me, however, if you just want some HD work pants for riding, this is them. (And no, I am not associated with the Co.:))
 
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#21 ·
Based on what you actually asked for, visit Duluth Trading Company website. Look for Fire Hose Cargo Pants. They come in "regular" and "relaxed" fit as may suit you. I suggest getting them in the next size longer than you wear for street clothes. Seated on a cruiser, pant cuffs ride up a bit. Also, they will shorten slightly over time. When I am wearing them in house without shoes, I just turn up the cuffs until I'm back in the saddle. Cargo pockets allow you to keep your back pockets empty for a more comfy long ride. Avoid any models with the work "Flex" in the name (a bit stretchier, but thinner material). I started wearing these about six years ago; they're my only riding pants now. Still have the first pair. They're in fine shape, though faded from umpty-thousand miles of all weather riding. Duluth also has a model with fleece lining. I recommend them if you're riding in colder seasons.

I have not yet gone down riding, and I doubt these pants would go far in protecting me, however, if you just want some HD work pants for riding, this is them. (And no, I am not associated with the Co.:))
Yea, they don't look as abrasion resistant as heavy denim, they are 8oz cotton. The Wrangler Riggs Workwear, is 14oz denim and doubled up in the front of the legs, but not the rear.

I have no doubt Duluth Trading is what you way they are, and they do look as comfortably. But I have to conclude they would not protect as well, as the denim I currently wear, that is short of adequate.
 
#22 ·
Most of the jeans I've tried are sized wrong for me. Joe Rocket, Klim etc. Watch out for "vanity sizing" which Klim is the worst I've experienced. Currently I wear the Defenders from Diamond Gusset for my usual short errand runs. No armor but they fit.

I've worn an Aerostich since the early '90's for commuting and touring. Not stylish but effective. I have over a 100K on the suit and it's still in great shape. If you are concerned about PPE, look them up. Great website.
 
#23 · (Edited)
Rick - Probably not as tough as the Wranglers you described, though the ones I described are a bit heavier than the 8 Oz you saw - 11-½ Oz.
 
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#25 ·
I high-sided off of my Shadow at 35mph a few years back. I basically shoulder-checked the ground and slid on my right side for around 50 meters. The road was damp from recent rain/snow, but was clear. Temperature was 68 and sunny. I was wearing a Shoei J-Cruise helmet, River Road leather jacket with "armor" in the shoulders and elbows, Wrangler jeans, Milwaukee boots, and a pair of motorcycle gloves.

I broke my shoulder blade, and had some minor road rash on my arm and knee, about what you would get if you fell and skinned your knee while running, where I slid along the pavement. My jacket has some scuffs and scratches, but remains serviceable. My jeans have a wear spot on my knee corresponding to where my road rash was, and remain serviceable. I refer to them as my "crash pants."
 
#26 ·
Buy some FR jeans,they work great,we have to wear them for oil field work.
I'm not going to try to sugar coat anything lol,I've crashed a lot,mostly drunk,flying to last call or other adventure.
Dr said once that it was a good thing I was so drunk or could have cashed in on one,that I got up and walked out.must have been real plyable.
Any way FR Pants are better than leather,and although I don't drink much any more I still buy FR rated denims.
 
#27 ·
Prison Blues, logger dungarees. 14.75 oz denim, blue or black, bachelor buttons if you’re into suspenders. Dbl knee or not, roomy, reasonably priced. Are they anti road rash? No, no more than other denims, but I’m still wearing the ones I bought 10 years ago.
 

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#28 ·

This company was near by so I rode to their outlet store to try them on and liked the fit. I have since bought another pair as I like their quality and protection. I have not tried them out yet as I hope I never do but should give my butt and knees some protection during a slide.

Tim
 
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#29 ·
I wonder if firehouse pants are made of the same stuf as real fire hose.
I once had a fire hose freeze after removing from the hydrant and laid on the ground.
I was so tired of un freezing hoses that I tied it to the back of the truck and dragged it to the next site.
It broke up the ice and spit it out after hooking it up to the hydrant, and no holes.
Impressed as it was dragged two miles.
Never told the boss on that one.
If the pants are half as good,they would be the ones to get.
 
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