to face or not to face my bb??
09-16-10, 01:28 PM
#1
Senior Member
Thread Starter
Join Date: Apr 2006
Location: Orange County CA
Posts: 963
Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
to face or not to face my bb??
I have a surly cc and am about to put on some ultegra 6600 compact cranks(cup and bearing style). I heard that I should face my bottom bracket before I put on this type of crank. Do I really need to do this or is it only important for older frames?
thanks
thanks
09-16-10, 01:44 PM
#3
Low car diet
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 4 Times
in
4 Posts
I believe it's only unnecessary for cartridge-style bottom brackets, where the spindle is fixed relative to the cups, though it is still a good idea. It is necessary for older cup-and-cone and newer external BBs. Having the cups and spindle not perfectly perpendicular can lead to premature bearing wear and failure.
09-16-10, 01:44 PM
#4
Bicycle Repair Man !!!
Yes... you want to insure that the bb is faced perfectly.
You would expect this from Surly but it is wise to make sure that it was done properly and if anything, you want to check it to ensure that things are at spec.
You would expect this from Surly but it is wise to make sure that it was done properly and if anything, you want to check it to ensure that things are at spec.
09-16-10, 01:45 PM
#5
Senior Member
Thread Starter
Join Date: Apr 2006
Location: Orange County CA
Posts: 963
Bikes: Surly CC, Raleigh Team Pro, Specialized Rockhopper with an xtracycle
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
coolio..thanks guys. off to the bike shop.
09-16-10, 02:35 PM
#6
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
My Cross Check came with a fair bit of paint overspray on the bb shell faces and even a bit in the threads so having the shop face the shell and chase the threads is a good idea for any bottom bracket that's alignment sensitive, particularly an external cup type.
I just cleaned the paint off of mine with a little acetone and had no other problems since I installed a Shimano square taper cartridge.
I just cleaned the paint off of mine with a little acetone and had no other problems since I installed a Shimano square taper cartridge.
Thread
Thread Starter
Forum
Replies
Last Post
FastJake
Bicycle Mechanics
11
04-18-12 01:08 PM
mickey85
Bicycle Mechanics
11
02-02-10 07:53 PM
