Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 01-29-06, 05:30 PM   #1
michael67
Junior Member
Thread Starter
 
Join Date: Aug 2005
Bikes:
Posts: 24
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
removing one key release chainset.....

Hi all,
I am removing a shimano 600 chainset with a one key release system for the first time. Is it just a matter of looseing the allen key bolt and gently giving the chainset a tap from the from the underside, 'cause it seems to be stuck, or am I missing something?
Thanks very much in advance.
Regards
Michael
michael67 is offline   Reply With Quote
Old 01-29-06, 05:46 PM   #2
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,917
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Yes, you are missing something and it's not stuck. What you are seeing is normal.

One-key release systems work by backing out the crank fixing bolt against the threaded collar in the crank's center. Further backing out the bolt pulls the crank arms off the spindle.

When you first loosen the bolt it will turn freely. Then, as its head comes up against the extraction collar, it will get hard to turn again. Keep unscrewing it and pretty soon the crank arm will come off.

BTW, when you reinstall the crank, it's worth while to remove the collar (the ring with the two small spanner holes in it) so you can visually check to be sure the grooves in the crank line up properly with the splines on the spindle ends. Once the crank is seated properly and the fixing bolt torqued down, the collar can be replaced.

Some grease on the collar's threads and inner surface and on the fixing bolt head are recommended to ease removal the next time.
HillRider is offline   Reply With Quote
Old 03-05-06, 11:50 AM   #3
bklyn74
Senior Member
 
bklyn74's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Bikes: 2011 Cannondale CAAD 10, Moser "Special", RIP- early/mid 90's Zullo "Sprint" (ultegra grouppo, stronglight crankset), 04 Bianchi Pista (stock except for the saddle, front break and pedals)
Posts: 293
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i've got the bolts all the way out and the crank arms are still on the spindle pretty securely. not sure what i should do. . .
bklyn74 is offline   Reply With Quote
Old 03-05-06, 05:59 PM   #4
jeff_o
Senior Member
 
Join Date: Feb 2006
Location: Edison, NJ
Bikes: Custom built 55cm Tange 2 w/ Shimano RX100 Group
Posts: 69
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
hi. can someone attach pictures of one key release cranks. i don't have an idea of this. thanks.
jeff_o is offline   Reply With Quote
Old 03-05-06, 07:20 PM   #5
DieselDan
Senior Member
 
DieselDan's Avatar
 
Join Date: Mar 2003
Location: Beaufort, South Carolina, USA and surrounding islands.
Bikes: Cannondale R500, Motobecane Messenger
Posts: 8,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Get a crank remover:
DieselDan is offline   Reply With Quote
Old 03-05-06, 07:20 PM   #6
jacksbike
Senior Member
 
Join Date: Jul 2005
Location: New Haven, CT area
Bikes: Trek 7.5 Hybrid, Trek 1.1 Road, Holdsworth touring,Raleigh International,Ritchey Commando,Italvega Speciallissimo,et.al.
Posts: 1,341
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hillrider's reply is right on the money. If the crank is still not coming off of the spindle you may have to remove the allen head bolt set-up and get a crank extractor tool. Although for the life of me I don't know why the 1 key release is not pushing off against the spindle, unless some parts underneath it rotated. I have 1 (of many bikes in my collection) with the Shimano and/or Sugino 1 key release sytem and it always has worked.
jacksbike is offline   Reply With Quote
Old 03-05-06, 07:25 PM   #7
DieselDan
Senior Member
 
DieselDan's Avatar
 
Join Date: Mar 2003
Location: Beaufort, South Carolina, USA and surrounding islands.
Bikes: Cannondale R500, Motobecane Messenger
Posts: 8,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Chances are, it's not a one key release, but simply an 8mm Allen key bolt.
DieselDan is offline   Reply With Quote
Old 03-05-06, 07:29 PM   #8
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,917
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Quote:
Originally Posted by DieselDan
Chances are, it's not a one key release, but simply an 8mm Allen key bolt.
Excellent point. Not all Shimano 9-speed cranks had the one-key release. Ultegra and Dura Ace did but 105 and below didn't. Also AFAIK, none of the pre 9-speed Shimano cranks did unless an owner retrofitted Suguino Autex parts.
HillRider is offline   Reply With Quote
Old 03-05-06, 08:29 PM   #9
CBolt
Senior Member
 
Join Date: Sep 2004
Location: Kalamazoo, MI
Bikes: Too many
Posts: 234
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, it might not be self extracting. Did you get the bolt all-the-way out?
CBolt is offline   Reply With Quote
Old 03-06-06, 06:40 PM   #10
bklyn74
Senior Member
 
bklyn74's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Bikes: 2011 Cannondale CAAD 10, Moser "Special", RIP- early/mid 90's Zullo "Sprint" (ultegra grouppo, stronglight crankset), 04 Bianchi Pista (stock except for the saddle, front break and pedals)
Posts: 293
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i have truvativ cranks, ISIS drive (guess i should have mentioned that when i jumped on the thread. sorry). i got the bolt all the way out. they look like one-key release cranks, but maybe they're not. they're the stock truvativs on an 04 bianchi pista if that helps.
bklyn74 is offline   Reply With Quote
Old 03-06-06, 09:00 PM   #11
CBolt
Senior Member
 
Join Date: Sep 2004
Location: Kalamazoo, MI
Bikes: Too many
Posts: 234
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
^You need an ISIS/octalink compatible crank puller or adapter.
CBolt is offline   Reply With Quote
Old 03-06-06, 09:12 PM   #12
DieselDan
Senior Member
 
DieselDan's Avatar
 
Join Date: Mar 2003
Location: Beaufort, South Carolina, USA and surrounding islands.
Bikes: Cannondale R500, Motobecane Messenger
Posts: 8,521
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by CBolt
^You need an ISIS/octalink compatible crank puller or adapter.
In that case:
DieselDan is offline   Reply With Quote
Old 03-06-06, 09:51 PM   #13
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,917
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Quote:
Originally Posted by CBolt
^You need an ISIS/octalink compatible crank puller or adapter.
If you are buying a new puller, get an Octalink/ISIS compatible type. If you already have a puller for square taper cranks, you need a plug to fill the hollow spindle end and give the puller something to press against. Shimano makes a steel plug tool specifically for that purpose (TL-FC15) that any LBS should have cheap. I've also heard a nickel will work but haven't tried that.
HillRider is offline   Reply With Quote
Old 03-06-06, 11:20 PM   #14
bklyn74
Senior Member
 
bklyn74's Avatar
 
Join Date: Dec 2004
Location: Brooklyn, NY
Bikes: 2011 Cannondale CAAD 10, Moser "Special", RIP- early/mid 90's Zullo "Sprint" (ultegra grouppo, stronglight crankset), 04 Bianchi Pista (stock except for the saddle, front break and pedals)
Posts: 293
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks for all the help. i have a puller for sqaure taper cranks (for my other bike) so i may give the nickel trick a shot.
bklyn74 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 09:15 PM.