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 07-15-03, 01:22 PM   #1
pinky
Ink-Stained Wretch
Thread Starter
 
pinky's Avatar
 
Join Date: Jun 2003
Location: Holyoke, MA
Bikes:
Posts: 1,731
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
moving to a double

i have an allez sport with a triple chain ring and since I don't use the granny at all I'd like to get rid of it. Can I get away with simply removing the granny ring and tweaking the front deraillur and leaving the long arm rear in, or should I upgrade, and if so what exactly should I upgrade (off the top of my head I would think a new chain and new front and rear deraillers)
pinky is offline   Reply With Quote
Old 07-15-03, 02:50 PM   #2
1oldRoadie
Oh God, He's back!
 
1oldRoadie's Avatar
 
Join Date: May 2002
Location: Charleston, SC
Bikes: Paramount
Posts: 1,021
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
why not just NOT SHIFT to the little ring?
__________________
I can't ride and Frown!
1oldRoadie is offline   Reply With Quote
Old 07-15-03, 03:30 PM   #3
pinky
Ink-Stained Wretch
Thread Starter
 
pinky's Avatar
 
Join Date: Jun 2003
Location: Holyoke, MA
Bikes:
Posts: 1,731
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I dont, thats why I want to get rid of it...
pinky is offline   Reply With Quote
Old 07-15-03, 04:22 PM   #4
don d.
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Depends on what you mean by "tweaking" the front derailleur. If you mean adjusting the limit screw so the derailleur will not shift inward past the middle chainring, yes, you can do that. No Prob continuing to use the other components.
  Reply With Quote
Old 07-15-03, 05:06 PM   #5
SteveE
Veni, Vidi, Vomiti
 
SteveE's Avatar
 
Join Date: Jun 2002
Location: Republic of Anaerobia
Bikes: Serotta Legend Ti, Romani Columbus SL, Soma Doublecross
Posts: 3,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think you should keep the triple and just move to some place where the hills are more daunting!
SteveE is offline   Reply With Quote
Old 07-15-03, 07:05 PM   #6
spazegun2213
Senior Member
 
spazegun2213's Avatar
 
Join Date: Jul 2003
Location: San Diego
Bikes: '11 Allez Comp, '09 Pinarello Pista
Posts: 597
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
At school in Indiana i only used that tiny chain ring once! Home in Va, I have not touched the biggest one yet!! To many hills, I'm glad i got a tripple.
spazegun2213 is offline   Reply With Quote
Old 07-15-03, 07:14 PM   #7
John E
feros ferio
 
John E's Avatar
 
Join Date: Jul 2000
Location: www.ci.encinitas.ca.us
Bikes: 1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
Posts: 17,311
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
How about getting a tighter freewheel and/or a larger grannie ring, to obtain closer-ratio gears over the range you do use? Also, do not underestimate the value of keeping at least one seldom-used low gear ratio; at the end of a long ride, even an average climb can suddenly look daunting.

I am doing the opposite conversion, replacing my Capo's Nervar Star double with a Campag. Veloce with 3 rings and long stack bolts. (The Veloce crank sits just far enough outboard to provide just enough chainstay clearance for the third ring.)
__________________
"Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1981 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
John E is offline   Reply With Quote
Old 07-15-03, 08:11 PM   #8
Rowan
Senior Member
 
Join Date: Jun 2003
Bikes:
Posts: 15,207
Mentioned: 37 Post(s)
Tagged: 0 Thread(s)
Quoted: 448 Post(s)
Quote:
Originally posted by John E
Also, do not underestimate the value of keeping at least one seldom-used low gear ratio; at the end of a long ride, even an average climb can suddenly look daunting.
Ain't that the truth, John!

Pinky, be a little cautious with the adustment on the limit screw if you do remove the inner ring. The screw may run out of adjustment and you won't be able to "park" the derailleur cage over the middle ring without tension on the cable. You could end up popping the chain off on every downshift.

Be also aware that if you choose to select big front chainring and big rear cog, you will be cross-chaining, resulting in increased wear and possible overstressing of the rear derailleur (dependent on chain length.

Probably best to keep the set-up you have and just ignore the fact that you have a granny ring.

FWIW

R
Rowan 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 09:00 AM.