Broken chainring teeth on new conversion project
05-05-13, 04:48 AM
#1
same as it ever was
Thread Starter
Join Date: Aug 2008
Location: Perth, Australia
Posts: 27
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Broken chainring teeth on new conversion project
Hi from Australia
I've built and ridden a stack of fixed gear conversions without dramas thanks to this site and recently helped a buddy build his first fixed commuter.
It's a pretty standard conversion of an Italian road bike with a 3/32 drive train, 3/32 single speed bmx chain (not 8 speed, no half links), 48T alloy chainring sitting on a standard road crank. He's a small fella maybe 65kg who's logged a million miles on all sorts of bikes.
We built it together but he finished the build himself (installed the chain) before I had a chance to check chainline, chain tension, and fine tune. After only 1 week of commute 2 teeth are badly damaged.
I've never seen this in all my builds and would appreciate any advice as to a likely cause.
Thanks
Kerry
I've built and ridden a stack of fixed gear conversions without dramas thanks to this site and recently helped a buddy build his first fixed commuter.
It's a pretty standard conversion of an Italian road bike with a 3/32 drive train, 3/32 single speed bmx chain (not 8 speed, no half links), 48T alloy chainring sitting on a standard road crank. He's a small fella maybe 65kg who's logged a million miles on all sorts of bikes.
We built it together but he finished the build himself (installed the chain) before I had a chance to check chainline, chain tension, and fine tune. After only 1 week of commute 2 teeth are badly damaged.
I've never seen this in all my builds and would appreciate any advice as to a likely cause.
Thanks
Kerry
05-05-13, 07:32 AM
#4
same as it ever was
Thread Starter
Join Date: Aug 2008
Location: Perth, Australia
Posts: 27
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks guys. I did the big intro story thinking it was build related but it seems the answer is it just got belted with something hard...
05-05-13, 10:10 AM
#5
Sqrl
Join Date: Mar 2012
Posts: 552
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Not you. well explained tho. If it's making the chain skip, you can gently file/sand it down till they're flat.
