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Mtbr Founder
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Discussion Starter · #1 ·
Do you have the 3rd (aka big) chainring on your bike? Do you use it? Has it caused you great bodily injury? Do you plan to keep it?

Or have you removed it? Do you miss it or is it better?

I worked on a couple bikes today and will post them tomorrow. But meanwhile, here's a montage. I'm missing Ziscwig's shredded calf from a little Demo tumble.

fc
 

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Life is strange
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My bashguard saved me from one of those today!

And then I promptly missed having a big chain ring when I got back to the 10miles of pavement to get home.
 

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Dirt Deviant
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I can spin pretty good, so I don't miss it.
If I still had the large ring in place in downieville last weekend when I crashed on butchers ranch, it would not have been pretty.
Getting tangled in a bike is not a good thing......especially with a large ring. Hot rotors are bad enough.
I had a bad crash about 4 years ago and the bike scorpioned up into the air above me, I stepped back, and I reached out and caught it with my left arm as I didn't want the bike to hit the ground. Took a chainring in my bicept. There is not much of a scar, but it was bad at the time.
Here is a pic that isn't too bad. The back of my ankle.
 

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Air Pirate
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My daughter got one of those "Chunk out of leg due to chainring" injuries riding her first mountain bike, a Speccie Hotrock 24", down the driveway at home. Her leg looked a lot like the first pic Francois posted. Don't know how she crashed, but she is a constant gravity test as it is. Anyway, since it healed she always is showing off her "mountain bike scar" to all the other kids, telling them that they arent real bikers until they sport one of those.
 

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Discussion Starter · #8 ·
savagemann said:
I can spin pretty good, so I don't miss it.
....
I had a bad crash about 4 years ago and the bike scorpioned up into the air above me, I stepped back, and I reached out and caught it with my left arm as I didn't want the bike to hit the ground. Took a chainring in my bicept.
...
I think most people will not miss it. I think it is one of the worst inventions ever and Rensho and I will go on a crusade to eradicate it.

'the bike scorpioned up'
Awesome visual savagemann!!!! When that happens, it is time to run!

fc
 

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Discussion Starter · #9 ·
Bokchoicowboy said:
My daughter got one of those "Chunk out of leg due to chainring" injuries riding her first mountain bike, a Speccie Hotrock 24", down the driveway at home. Her leg looked a lot like the first pic Francois posted. Don't know how she crashed, but she is a constant gravity test as it is. Anyway, since it healed she always is showing off her "mountain bike scar" to all the other kids, telling them that they arent real bikers until they sport one of those.
That's the thing man, you don't even have to crash. You can just have an unstable dismount and all hell can break loose. I think the calf doesn't have a ton of nerves so it don't hurt that much. The ankle on the other hand...

fc
 

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Discussion Starter · #11 ·
Here's the project yesterday. It was installing a Shimano guide on an SLX crank.

To do it even better, change the middle ring from a 34 tooth to a 36 tooth or 38.

To save weight use a Salsa chainring guard that is way lighter if you're not going to be bashing the guard on rocks.

fc
 

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It's the axle
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What the...

Total news to me. And that is some nasty result right there.

Well, on the other hand, I'll admit that when I was a kid I welded up a tall unicycle. I still have sprocket marks on my shin from when the chain came off, and I came down from my perch.
 

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Like a boss.
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I never use my big ring except during fire road downhills at Sea Otter and Lemurian, so for most of the year I keep it off and put on a bash guard instead. This has made my lower extremities MUCH happier. My upper extremities, too - I once got stabbed in the arm by the big chainring when I fell trying to get my bike on top of my car (I'm exceptionally short).

f u, big chainring.
 

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My chainring dug in to my tibia in 2007, pinning my leg in place as my body rolled and broke my tib/fib. I kept it on the bike, but moved to a single speed last year and am making the Epic a 1x9 now.
 

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Putting on a BBG bashguard or another bash is the first thing I do to all cranks - especially if I plan to use them with platform pedals. That said, I currently have a big ring on my training and one other hardtail. Plan to switch them to 1x10 with a lightweight chain guide.

Safety, ground clearance, lower weight, shorter chain and der. cage for better shifting and less chain slap. There is no need for a large ring, especially with modern wide range cassettes. Leave it for the roadies.
 

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old part timer
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Since the move to bigger wheels several years ago the big ring did not get much use. It eventually was removed and replaced with a bashguard. No need for it since I can spin the 11 out and there are never any podium girls on my rides anyway.
 

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This is my right shin after meeting a 44t Shimano chain ring at 2010 Napa Valley Dirt Classic, Quote from the EMT after the race, " I can see the bone "
 

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Nature Rider, Not MTBer
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Yuck! Seeing pictures like those was one of the reasons I got rid of the big ring a couple years back.
 

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iheartMTNs
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On my geared bike (purchased several years ago) the big ring was removed and replaced with an ethirteen bash guard and the 32/22 rings were replaced by 34/24 rings before bringing it home from the shop.
 
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