Go Back  Bike Forums > Bike Forums > Singlespeed & Fixed Gear
Reload this Page >

Any cup and cone 68 x 103 mm bottom brackets?

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Any cup and cone 68 x 103 mm bottom brackets?

Reply

Old 04-15-18, 12:57 AM
  #1  
*Scuba 
Made in Taiwan
Thread Starter
 
Join Date: Sep 2008
Location: Vancouver
Posts: 161

Bikes: Camerotti ti roadbike, Old Sears Free Spirit Tange Hi-Ten Single Speed built from a 12 speed, 1997 Cannondale CAD3 r500 with Shimano 6400 groupset

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Any cup and cone 68 x 103 mm bottom brackets?

Hi all,

Just wondering if anyone knows of a manufacturer that still makes cup and cone bottom bracket with a 103 mm square taper spindle. Or where to source a 103 mm JIS spindle.

I have two bikes that uses 68 x 103 JIS bottom brackets. One has Sugino Messenger cranks and the other has Sugino Mighty comp. Both currently have sealed cartridge bottom brackets and are perfectly fine. I think one is an IRD and can't remember what the other one has (maybe Tange).

The reason I am curious about using loose ball bearings instead of sealed cartridge bearing bottom bracket is that I like to service my own bikes on a regular basis and just find it meditative to repack a bottom bracket and then fine tune the adjustment. Just something that I enjoy I guess. Plus I volunteer at my local bike co-op and have access to their tools and stand so it costs me next to nothing to service a bottom bracket on a regular interval.

Thanks in advance!
__________________
All dogs want to be lap dogs doesn't matter the size
-Animal loving friend
*Scuba is offline  
Reply With Quote
Old 04-15-18, 01:37 AM
  #2  
Kontact
Senior Member
 
Kontact's Avatar
 
Join Date: Apr 2011
Posts: 3,628
Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
Quoted: 2141 Post(s)
Originally Posted by *Scuba View Post
Hi all,

Just wondering if anyone knows of a manufacturer that still makes cup and cone bottom bracket with a 103 mm square taper spindle. Or where to source a 103 mm JIS spindle.

I have two bikes that uses 68 x 103 JIS bottom brackets. One has Sugino Messenger cranks and the other has Sugino Mighty comp. Both currently have sealed cartridge bottom brackets and are perfectly fine. I think one is an IRD and can't remember what the other one has (maybe Tange).

The reason I am curious about using loose ball bearings instead of sealed cartridge bearing bottom bracket is that I like to service my own bikes on a regular basis and just find it meditative to repack a bottom bracket and then fine tune the adjustment. Just something that I enjoy I guess. Plus I volunteer at my local bike co-op and have access to their tools and stand so it costs me next to nothing to service a bottom bracket on a regular interval.

Thanks in advance!

I'm guessing no, because your cranks actually project into the width of the cups, and can do that because of the way cartridge BBs are inset into their cups. The flat outer cups on an adjustable would be grinding against the crank once you tightened the crank bolts down.

I have a DA crank that uses a 103 and it would drag the cups even with a 108 spindle and loose ball BB.
Kontact is offline  
Reply With Quote
Old 04-15-18, 12:04 PM
  #3  
*Scuba 
Made in Taiwan
Thread Starter
 
Join Date: Sep 2008
Location: Vancouver
Posts: 161

Bikes: Camerotti ti roadbike, Old Sears Free Spirit Tange Hi-Ten Single Speed built from a 12 speed, 1997 Cannondale CAD3 r500 with Shimano 6400 groupset

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Originally Posted by Kontact View Post
I'm guessing no, because your cranks actually project into the width of the cups, and can do that because of the way cartridge BBs are inset into their cups. The flat outer cups on an adjustable would be grinding against the crank once you tightened the crank bolts down.

I have a DA crank that uses a 103 and it would drag the cups even with a 108 spindle and loose ball BB.
Hi Kontact,

Thanks for the advice, totally had a "Do'h" moment. I ride my main commuter in all weather, so I wipe it down regularly. I stare at that bottom bracket and cranks all the time, in detail. How could I have forgotten. But, I just had to double check and you are totally correct.

The back of the cranks do protrude into the bottom bracket shell, so a cup and cone BB won't work.

Now, I guess I am going to have to find a vintage crankset and a matching cup and cone BB!
__________________
All dogs want to be lap dogs doesn't matter the size
-Animal loving friend
*Scuba is offline  
Reply With Quote
Old 04-15-18, 07:37 PM
  #4  
ThermionicScott 
Hammer and tongs
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 17,397

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)

Mentioned: 54 Post(s)
Tagged: 0 Thread(s)
Quoted: 1611 Post(s)
Each to his own. I'm loving the fact that I haven't had to touch any of my cartridge bottom brackets since I installed them. Frees up more time for riding or... anything else.
__________________
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498
ThermionicScott is offline  
Reply With Quote
Old 04-16-18, 10:28 AM
  #5  
veganbikes
Clark W. Griswold
 
Join Date: Mar 2014
Location: ,location, location
Posts: 4,586

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Pink Klein MTB, Phil Wood VeloXS Frame (that will soon have DA 7400), Cilo Road Frame

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 921 Post(s)
Originally Posted by ThermionicScott View Post
Each to his own. I'm loving the fact that I haven't had to touch any of my cartridge bottom brackets since I installed them. Frees up more time for riding or... anything else.
+1

I would just get a high quality sealed bearing BB and never worry. Or upgrade your cranks to Sugino 75 and they make a BB you can adjust and clean and futz with till your hearts content or again just go with a sealed bearing which they now make (or get one from Phil Wood) or go Direct Drive and get any number of 24mm BBs including real expensive stuff from CeramicSpeed which will make you 1.2 gigawatts faster according to tests.
veganbikes is offline  
Reply With Quote
Old 04-16-18, 01:16 PM
  #6  
TejanoTrackie 
Veteran Racer
 
TejanoTrackie's Avatar
 
Join Date: Jul 2009
Location: Ciudad de Vacas, Tejas
Posts: 11,126

Bikes: 29 frames + 72 wheels

Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 627 Post(s)
Canucks are crazy.
__________________
What, Me Worry? - Alfred E. Neuman

Originally Posted by Dcv View Post
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me
TejanoTrackie is offline  
Reply With Quote
Old 04-16-18, 10:26 PM
  #7  
veganbikes
Clark W. Griswold
 
Join Date: Mar 2014
Location: ,location, location
Posts: 4,586

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Pink Klein MTB, Phil Wood VeloXS Frame (that will soon have DA 7400), Cilo Road Frame

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 921 Post(s)
Originally Posted by TejanoTrackie View Post
Canucks are crazy.
Hey there friend, what's all this aboot us being crazy, Eh? Look here buddy I will take all your loonies and pop you one in the poutine hole if you don't stop attacking Canada, eh. We are a proud maple syrup and hockey loving people and we don't need you attacking us, guy!
veganbikes is offline  
Reply With Quote
Old 04-17-18, 03:43 AM
  #8  
seau grateau
Senior Member
 
seau grateau's Avatar
 
Join Date: Sep 2009
Location: LA
Posts: 9,230

Bikes: Shogun Selectra, Felt TK2, Ridley Fenix AL

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1010 Post(s)
seau grateau is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service