Crank Problem - Lopsided?
#1
Newbie
Thread Starter
Join Date: Feb 2014
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Crank Problem - Lopsided?
Hi guys, absolute clueless person here.
I have a problem with my crank, it seems as though the non-chainring side seems to be protruding out longer than the other side thus causing the chainring to rub against the frame.
Anyone have any ideas??
I have a problem with my crank, it seems as though the non-chainring side seems to be protruding out longer than the other side thus causing the chainring to rub against the frame.
Anyone have any ideas??
#2
Senior Member
Join Date: Sep 2004
Location: boston, ma
Posts: 2,896
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
is the bb new? looks like the spindle shifted from the press fit of the cartridge unit. you could also be using a bb meant for 73mm shells on a 68mm shell
#3
Senior Member
Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,056
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4195 Post(s)
Liked 3,837 Times
in
2,295 Posts
Does the RH arm fully seat on the spindle? If so and if the ring's rubbing is slight you could always place a spacer behind the RH BB unit's flange, therefore moving the RH side of the spindle out. Andy.
#4
Senior Member
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Posts: 6,681
Bikes: 8 ss bikes, 1 5-speed touring bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Likes: 0
Liked 4 Times
in
4 Posts
looks like the BB is too wide for the BB shell. wrong size maybe, as mentioned above. the adjustable side on all my bikes sits pretty flush with the BB shell.
#5
Mechanic/Tourist
As the BB is installed from the drive side the length would have nothing to do with how far the BB extends on the drive side.
#6
Senior Member
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Posts: 6,681
Bikes: 8 ss bikes, 1 5-speed touring bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Likes: 0
Liked 4 Times
in
4 Posts
woman walks into the doctor's office and tells him a long story about what she supposes is wrong with her. he tells her that despite her symptoms, she is perfectly healthy and it's just her imagination. this didn't sit well her and she told the doctor in no uncertain terms, 'well!.... i want a second opinion".
doctor says, "OK, your're ugly too."
#7
Senior Member
Join Date: Feb 2012
Location: Rochester, NY
Posts: 18,056
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4195 Post(s)
Liked 3,837 Times
in
2,295 Posts
But we don't know what the OP's installed BB is, or was, yet. Andy.
#9
Senior Member
Join Date: Dec 2010
Location: Above ground, Walnut Creek, Ca
Posts: 6,681
Bikes: 8 ss bikes, 1 5-speed touring bike
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 86 Post(s)
Likes: 0
Liked 4 Times
in
4 Posts
#10
Senior Member
Join Date: Jan 2013
Location: South Jersey
Posts: 2,262
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 713 Post(s)
Liked 796 Times
in
473 Posts
Most shops should have a 2.5mm bottom bracket spacer. I always have a few around that came with external bottom brackets and don't get used on a 73mm shell.