That's just two months from this SRAM PC1 before a side plate exploded (fortunately I was going downhill and was able to schluff the rest of the way in)
Displeased! Four weeks is only 200 miles...
CityCyclingEdinburgh Forum » Infrastructure
Chain snap... again!
(19 posts)-
Posted 12 years ago #
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Must be your awesomepower Dave!
Posted 12 years ago # -
Must be your awesomepower Dave!
Posted 12 years ago # -
I think I mentioned before but it was a SRAM PC1 that snapped as I pulled away from the lights at Semple Street leaving me bloodied and breaking my front wheel. I've since changed to a KMC B1, much heavier but I've got a thousand km from it.
Or Must be your awesomepower Dave!
Posted 12 years ago # -
D'oh!
Which bike was this on Dave?
Posted 12 years ago # -
You snapped a chain going downhill?
You were just trying to go fast, weren't you?
Posted 12 years ago # -
Not yet managed to snap a Shimano 6/7/8-speed HG chain. Pretty tough stuff, even when worn and stretched.
Posted 12 years ago # -
The only time I've snapped a chain was when I combine several chains of different brands and ages into one chain...
Don't do that.
Posted 12 years ago # -
Frankenchain lives!
Posted 12 years ago # -
dave makes a note not to build chains from the corpses of dead chains...
KMC B1 sounds good - off to wiggle I go!
Posted 12 years ago # -
Urgh... borrowed tools at work to remove the broken link, but then the wheel was far enough forward in the drop-outs to foul the mudguard.
Tried to take the mudguard off, but it's corroded on.
Cut mudguard apart with pliers :(
At least now I can replace with a wider size, but still...
Posted 12 years ago # -
Wait a sec, Dave, was this chain on the hub geared/coaster braked bike? Were you vraking with said coaster at the time it snapped? This I could understand, and a bit worrying!
8 speed or even old style 6 speed chain recommended for hub geared bikes: solid as a rock.
Posted 12 years ago # -
8 speed or even old style 6 speed
Aren't they the same thing?
HG claims good for 6-8 speed anyway.
Posted 12 years ago # -
Today fitted a sram PC991 to the cross bike. Previous chain had 3000+ miles on it. Left it far too long. Frankly amazed it's not skipping.
Posted 12 years ago # -
@crowriver yes, the single speed / hub gear. It's a SRAM PC1 that's on it, so a 1/8th rather than 3/32nd chain.
The internet says these chains are prone to snapping, so maybe I shouldn't be too surprised. However, they've been an OK choice since back when my only bike was fixed.
It would be very hard to break the chain using the coaster brake IMO. It hardly takes any foot effort to lock the wheel (compared with the force you put in accelerating the bike) but needless to say, if you do break it or it comes unshipped, you're down to one brake.
Posted 12 years ago # -
8 speed or even old style 6 speed
Aren't they the same thing?
IIRC 8 speed is 3/32nds of an inch; 6 speed is 1/8th of an inch. (Wide).
@Dave, some of the KMC chains come in different painted finishes if you want (I presume they're intended for BMX). I got a red one for my single speed.
Posted 12 years ago # -
"
I got a red one for my single speed.
"Don't they all just become black after a week anyway?
Posted 12 years ago # -
"Don't they all just become black after a week anyway?"
Only if you use them!!
Posted 12 years ago # -
Don't they all just become black after a week anyway?
As my single speed has no mudguards, I only ride it when it's dry. As there's no gears to change, deraileurs, etc. It doesn't get all gunked up like on my other bikes. I find that my hub geared folder chain doesn't get quite as mucky a chain, though it does get muckier than the single speed because I ride it in the rain.....all that road spray that comes up from the front wheel is full of crap. Even full mudguard with flap at the front doesn't stop all of it from spraying the bottom of the chain.
Posted 12 years ago #
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