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TLDR: Would you ride with a co2 canister in your pocket?
Like many of you, I'm making the most of furlough and good weather by riding most days. I'm doing a lot of hooning down woods, sessioning jumps and berms, with some faster dh stuff thrown in.
My rear tyre is slowly leaking, so I top up before a ride and have some sealant on the way.
I've been taking my co2 canister & valve in my shorts pocket* just in case, but it has occurred to me that this may be dangerous in the event of a crash.
So, what are the chances of it blowing my thigh off?
*been very much enjoying not having a backpack
I'd just sort my tyre out.
Haha, yeah on that, as mentioned. Sealant on the way 👍
So, what are the chances of it blowing my thigh off?
Virtually none.
I'd be more worried about landing on it awkwardly tbh. Just tape/velcro it to your frame somewhere if you're bothered?
Yeah it's not gonna explode, but those things are pretty hard - I wouldn't wanna fall hard on it. Attach it to the bike.
What about the cheapest tiniest type of bumbag ?(Fannypack in the US) Small and out the way, and you maybe feel less chance of it blowing your bollocks off, which I guess is your main concern 😆
Goo0d call though, good question.
You get the impression though that they are quite robust, except for the thin cap.
Small thread hijack of the type I've never been guilty of before 😛 Is it possible to get that size of canister filled with Helium ?. I's an old idea of an already on the market safety device, but needs a lighter than air gas.
Yeah it’s not gonna explode, but those things are pretty hard – I wouldn’t wanna fall hard on it.
This
Two thoughts spring to mind:
If you do fall of it could act as a blunt knife and stab you in the leg when you land on it, the exact reason I don't carry keys in my pocket while riding.
If you fall and it does break the seal it's going to discharge very quickly and get very cold, that could cause it to damage your skin.
I'd personally get a carry strap or one of those nifty cases that Topeak do that bolts to the bottle cage bosses. Added bonus is that you don't have to worry about forgetting them.
I watched Jaws again recently. Maybe that’s where the notion has come from. Didn’t end too well for him.
It probably won't explode unless you attach C4 to it 🙂
Love Mythbusters...
Unless I'm remembering it wrongly didn't they shoot that cylinder in the sharks jaws to blow him up, so unless someone shoots the Co2 cannister in your back pocket you should be fine.
Diving cylinders are usually either 232 or 300 bar ( over 3000 psi ) and have air in them ( trimix adds helium ) Co2 cartridge won’t have anywhere like that.
Biggest risk as said above is landing on it and hurting yourself that way.
Best way to carry is on the bike itself. Strap it under the seat like on a road bike.
Insulating tape to the stem along with my spare tube on the mtb.
Least then if it ever falls off ill know..... such as it did at the puffer this year - although it had been strapped on there since 10 under the ben 2019.
attach an airbag to the canister, win/win
I watched Jaws again recently. Maybe that’s where the notion has come from. Didn’t end too well for him.
Just don’t smile works for roadies.
I thought this was going to be one of those elaborate excuses for presenting at A&E with a CO2 cartridge stuck up your arse!
So, what are the chances of it blowing my thigh off?
Well I've only seen it happen once but not sure I'd risk it.
No comment

Co2 canister in your pocket?
Or are you just (slightly) happy to see me?
Old bit of tube used as a wrap then taped to frame or stashed in the specialized swat compartment.
Saw a nice tip, a bit of threadlock on the canister allows you to tighten then adapter on it and carry it as a single piece. Just twist on when you need to use it.
Diving cylinders are usually either 232 or 300 bar ( over 3000 psi ) and have air in them ( trimix adds helium ) Co2 cartridge won’t have anywhere like that.
A CO2 air gun runs at about an average of 800psi over the life of a bulb. As said before though it's not the pressure that would worry me so much as the low temperature as it discharges.
Don't use CO2 but once fell* onto my inhaler that was in my rear Jersey pocket, that hurt like hell and created a bit of a bruise. Now try and avoid riding with anything too hard in my Jersey
*Was dicking about on my road bike whilst waiting for my mate to push up a hill, thought I'd try a wheelie, forgot I was clipped in and went straight over backwards as couldn't unclip in time. Bruised my back and bent my saddle rails. My days or trying to be Peter Sagan are over
it could act as a blunt knife and stab you in the leg
Thank god you don't write risk assessments at my work, we'd never get anything done with all the things that could potentially be blunt knives.
If you’re doing a job where there’s a high likelihood of impacts against metal objects carried directly against your body I’d expect a risk assessment to reflect it. I’ve had roles in the past where we were told not to have metal strapped to us for this reason.