What is the exterior diameter of a recessed brake nut?
06-29-11, 06:54 PM
#1
Full Member
Thread Starter
Join Date: Jul 2006
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 6 Times
in
4 Posts
What is the exterior diameter of a recessed brake nut?
I'm considering drilling my rear brake mount on my old raleigh to accept a recessed nut. yeah, i know its not strictly necessary but i think i might get a better fit this way. i already drilled the front and i'm very happy with the results.
06-29-11, 07:46 PM
#4
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
Remember you only want to open up the front face of the rear brake bridge, not drill all the way through. It's tricky since you can't get a regular drill in there as the seattube blocks it. A short drill bit held sideways in a Visegrip and rotated a fraction of a turn at a time will eventually get it done. And, yes, an 8 mm or 5/16" is the correct size.
06-29-11, 08:05 PM
#5
Full Member
Thread Starter
Join Date: Jul 2006
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 6 Times
in
4 Posts
Remember you only want to open up the front face of the rear brake bridge, not drill all the way through. It's tricky since you can't get a regular drill in there as the seattube blocks it. A short drill bit held sideways in a Visegrip and rotated a fraction of a turn at a time will eventually get it done. And, yes, an 8 mm or 5/16" is the correct size.
06-29-11, 08:16 PM
#6
Full Member
Thread Starter
Join Date: Jul 2006
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 6 Times
in
4 Posts
anyone have a suggestion on the make of drill bit to use? since i'm drilling into steel i assume i'll want something of higher quality.
06-30-11, 08:04 AM
#7
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
Any decent quality drill bit should work since all but wood bits are intended to drill steel as long as it isn't extremely hard and bike tubing isn't. A new, sharp bit will make the job go faster.
Thread
Thread Starter
Forum
Replies
Last Post
fideli
Classic & Vintage
10
01-29-13 04:43 PM
TurbineBlade
Bicycle Mechanics
14
01-22-12 11:03 PM
