Badly bent chainwheel (front sprocket), advice please!
#1
Newbie
Thread Starter
Join Date: Mar 2009
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Badly bent chainwheel (front sprocket), advice please!
So the story goes:
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!
#2
Senior Member
Join Date: Dec 2003
Location: Tucson, AZ
Posts: 11,016
Bikes: Custom Zona c/f tandem + Scott Plasma single
Mentioned: 3 Post(s)
Tagged: 1 Thread(s)
Quoted: 77 Post(s)
Likes: 0
Liked 19 Times
in
11 Posts
Hey the bike stood there leaning against the wall and that stupid chainring bent itself!
#3
cab horn
Join Date: Jun 2004
Location: Toronto
Posts: 28,353
Bikes: 1987 Bianchi Campione
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 26 Times
in
19 Posts
So the story goes:
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!
#5
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,790
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3590 Post(s)
Liked 3,400 Times
in
1,934 Posts
So the story goes:
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!
I lent my old peugeot to a friend to ride around and he calls me one night telling me something went badly wrong. Turns out the the front sprocket that attaches to the crank is bent... not just a little bent... bent nearly in half. My friend claims he didn't crash it or anything... he was just riding along and next thing he knew, bam! I'm not sure whether to believe him, but I'm wondering if it could have something to do with how the bike was converted to a single speed... like maybe too much pressure put on the chainwheel or something... plus he's a pretty big guy, about 240lb. Any thoughts on the cause, and also, do I need a completely new crank or just a new chainwheel... thanks for any advice!