screw size for under-BB plastic cable guide?
05-10-12, 07:48 AM
#1
The Drive Side is Within
Thread Starter
screw size for under-BB plastic cable guide?
I bought a fixer-upper Burley tandem, and have everything I need except the screw to mount an inexplicably missing cable guide.
Do they tend to be a standard size/threading/length?
Thanks.
Do they tend to be a standard size/threading/length?
Thanks.
__________________
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
05-10-12, 07:51 AM
#2
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,843
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1173 Post(s)
Liked 927 Times
in
612 Posts
Good question. I got a used Cannondale Six-13 frame with a big hole, and not sure what is supposed to be used. I may just glue the damn thing on. Or use nothing, or maybe double sided tape. I wonder if cable tension will keep it in place.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
05-10-12, 07:58 AM
#3
Bianchi Goddess
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,858
Bikes: Too many to list here check my signature.
Mentioned: 192 Post(s)
Tagged: 2 Thread(s)
Quoted: 2930 Post(s)
Liked 2,925 Times
in
1,491 Posts
The screw is a sort of standard but I do not recall what it is. The ones I have seen are usually something like a self tapping M5 or there abouts.
The cable guides came in several style but basically mounted in one of two ways a scres directly into the BB shell and type that had a nub that went into a bigger hole and then a screw expanded the nub like a hollow wall fastner.
Bike tools etc says they are 5mm. https://www.biketoolsetc.com/index.cg...tem_id=US-0073
if the hole is already tapped just try a short 5m screw, same a s bottle cage or rack screw
The cable guides came in several style but basically mounted in one of two ways a scres directly into the BB shell and type that had a nub that went into a bigger hole and then a screw expanded the nub like a hollow wall fastner.
Bike tools etc says they are 5mm. https://www.biketoolsetc.com/index.cg...tem_id=US-0073
if the hole is already tapped just try a short 5m screw, same a s bottle cage or rack screw
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
05-10-12, 08:05 AM
#4
The Drive Side is Within
Thread Starter
Thanks, BG-- hope I have a short one around. Obviously a longer one is a bad idea!! Usually I have a trashpile junk frame around to pull stuff from, but the scrappers are lightning quick these days.
hmmm... maybe some washers will help get one to the right length.
hmmm... maybe some washers will help get one to the right length.
__________________
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
Last edited by Standalone; 05-10-12 at 08:10 AM.
05-10-12, 08:08 AM
#5
Old fart
Join Date: Nov 2004
Location: Appleton WI
Posts: 24,786
Bikes: Several, mostly not name brands.
Mentioned: 153 Post(s)
Tagged: 0 Thread(s)
Quoted: 3588 Post(s)
Liked 3,400 Times
in
1,934 Posts
M5 and M6 are both common sizes on bikes; probably 90% or higher chance one or the other of those would work. Other wise, a little adhesive will also do, as cable tension will hold the piece in place.
05-10-12, 08:10 AM
#6
Bianchi Goddess
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,858
Bikes: Too many to list here check my signature.
Mentioned: 192 Post(s)
Tagged: 2 Thread(s)
Quoted: 2930 Post(s)
Liked 2,925 Times
in
1,491 Posts
If the BB is not installed you can always put a screw in and then cut or grind it down. if your using a standard 'cup and spindle' bb you can use a bit longer screw than a fat cartridge.
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
05-10-12, 08:15 AM
#7
The Drive Side is Within
Thread Starter
Just for fun, here's the bike. I'll try to get it finished up tonight. The only other things it needs at this point are the fd and a rear brake. Thanks again.
__________________
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
05-10-12, 11:25 AM
#8
Banned
Under which BB are you speaking of?
The rear BB is a snap ring oversized sealed bearing..
I had a temp gig at the Co Op in the 90's,
the frames were made by the guy that now makes Bike Fridays.
The rear BB is a snap ring oversized sealed bearing..
I had a temp gig at the Co Op in the 90's,
the frames were made by the guy that now makes Bike Fridays.
05-10-12, 11:52 AM
#9
Retro Grouch
Join Date: Oct 2007
Location: Santa Cruz
Posts: 2,210
Bikes: Yes
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I just checked my Burly and it has a old standard Shimano guide ) with the metal insert (SP18-M; which didn't come with a screw) and a 5mm screw with 8mm's of thread. BTW, the newer Shimano BB guides (SP18-T) come with a plastic insert and sheet metal screw (I bought a frame one time that had this guide and the seller had tried to use the screw which of course did not thread and it stuck out 2 mm 
). As far as the front BB guide, mine has a small plate with three holes brazed across the bottom bracket, that guides the cables under the tube connecting the bottom brackets.
). As far as the front BB guide, mine has a small plate with three holes brazed across the bottom bracket, that guides the cables under the tube connecting the bottom brackets.
Last edited by onespeedbiker; 05-10-12 at 12:13 PM.
05-10-12, 12:09 PM
#10
Passista
Join Date: Jul 2005
Posts: 7,598
Bikes: 1998 Pinarello Asolo, 1992 KHS Montaña pro, 1980 Raleigh DL-1, IGH Hybrid, IGH Utility
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 867 Post(s)
Liked 721 Times
in
396 Posts
Most I've seen used a very short 5mm screw, but a few were riveted.
05-10-12, 12:33 PM
#11
The Drive Side is Within
Thread Starter
Rear BB. The bike came w/ a Bag-O-Parts, which included a new cable guide. I was assuming it was the correct one, but who knows. Thanks for the Burley specifics.
__________________
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley
Thread
Thread Starter
Forum
Replies
Last Post
helpless
Bicycle Mechanics
8
06-07-10 12:04 PM
