Rack mounting issues
04-30-07, 10:34 AM
#1
******
Thread Starter
Join Date: Dec 2006
Location: Rochester, NY
Posts: 949
Bikes: Specalized Tri-Cross
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Rack mounting issues
Hey guys, wondering if you can help me out with this.
I'm mounting a rear rack. I have it all mounted, but the bolts that attach the rack to the seat post are all loose. The rack came with those auto-locking nuts that only go over the end of the bolts. This means that I can't tighten them down all the way. Is this normal for racks? Or should I go to a local hardware store and get shorter bolts and/or different nuts?
I'm mounting a rear rack. I have it all mounted, but the bolts that attach the rack to the seat post are all loose. The rack came with those auto-locking nuts that only go over the end of the bolts. This means that I can't tighten them down all the way. Is this normal for racks? Or should I go to a local hardware store and get shorter bolts and/or different nuts?
__________________
In the words of Einstein
"And now I think I'll take a bath"
In the words of Einstein
"And now I think I'll take a bath"
04-30-07, 10:38 AM
#2
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
Originally Posted by squegeeboo
Hey guys, wondering if you can help me out with this.
I'm mounting a rear rack. I have it all mounted, but the bolts that attach the rack to the seat post are all loose. The rack came with those auto-locking nuts that only go over the end of the bolts. This means that I can't tighten them down all the way. Is this normal for racks? Or should I go to a local hardware store and get shorter bolts and/or different nuts?
I'm mounting a rear rack. I have it all mounted, but the bolts that attach the rack to the seat post are all loose. The rack came with those auto-locking nuts that only go over the end of the bolts. This means that I can't tighten them down all the way. Is this normal for racks? Or should I go to a local hardware store and get shorter bolts and/or different nuts?
04-30-07, 10:38 AM
#3
Non Tribuo Anus Rodentum and off to the next adventure (RIP)
Join Date: Dec 2002
Posts: 9,161
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
I'm not sure I'm understanding the question.
Are the bolts threading into something and come out the other side (other than the nuts) or do they just go throuh something or do they thread in to one side of the seat stay and are bottoming out on the inside of the other side of the tube?
Thanks
Are the bolts threading into something and come out the other side (other than the nuts) or do they just go throuh something or do they thread in to one side of the seat stay and are bottoming out on the inside of the other side of the tube?
Thanks
__________________
04-30-07, 10:44 AM
#4
******
Thread Starter
Join Date: Dec 2006
Location: Rochester, NY
Posts: 949
Bikes: Specalized Tri-Cross
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by HillRider
I assume the nuts are "acorn nuts" and have bottomed out before the bolts are tight. The have the advantage of covering the sharp ends of the bolts but do limit travel Yes, certainly get shorter bolts that will allow you to tighten them completely.
Yup, those are the nuts, thanks for the advice to the hardware store it is then.
__________________
In the words of Einstein
"And now I think I'll take a bath"
In the words of Einstein
"And now I think I'll take a bath"
04-30-07, 11:55 AM
#5
Senior Member
Join Date: Feb 2001
Location: England
Posts: 12,948
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 7 Times
in
7 Posts
If the holes in your frame are threaded, then they probably use an M5 thread.
The best bolts for racks are stainles steel M5 allen bolts. The correct length is one that protrudes a couple of threads on the inside when using appropriate washers.
It generally isnt neccessary to fit a locking nut on the inside. If you have room and want to use one, use a Nylock style of nut which will not losen with vibration.
If you only have one set of threaded eyelets, will you want to fit fender stays with the same bolts? In which case you need longer bolts and you place the fender on the outside of the rack stay.
The bolt threads should be -very- lightly smeared with grease before fitting.
The best bolts for racks are stainles steel M5 allen bolts. The correct length is one that protrudes a couple of threads on the inside when using appropriate washers.
It generally isnt neccessary to fit a locking nut on the inside. If you have room and want to use one, use a Nylock style of nut which will not losen with vibration.
If you only have one set of threaded eyelets, will you want to fit fender stays with the same bolts? In which case you need longer bolts and you place the fender on the outside of the rack stay.
The bolt threads should be -very- lightly smeared with grease before fitting.
04-30-07, 08:22 PM
#7
******
Thread Starter
Join Date: Dec 2006
Location: Rochester, NY
Posts: 949
Bikes: Specalized Tri-Cross
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
hey guys thanks for all the advice, turns out I'm just a moron. I went to the hardware store with my delima, where i learned that the nuts I have, are just locking nuts, not acorn nuts, and you want to thread them down past the plastic at their end all the way until they are snug. Who knew?
__________________
In the words of Einstein
"And now I think I'll take a bath"
In the words of Einstein
"And now I think I'll take a bath"
