Double crank with triple shifters and longcage?
09-15-08, 11:21 PM
#1
Banned.
Thread Starter
Join Date: Dec 2005
Location: Upland Ca
Posts: 19,895
Bikes: Lemond Chambery/Cannondale R-900/Trek 8000 MTB/Burley Duet tandem
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
Double crank with triple shifters and longcage?
Can I switch out a triple for a double crankset without switching out the shifters and long cage derailleur? I see Ultegra doubles on Icycleusa for under a hundred bucks. Having a hard time finding triples (105)for under $200.
Will it work? I have DA on another bike so not looking for a highend rig, just my riding/beater bike. 15,000 miles on the Bonti crankset so it's pretty much junk. I can live without the triple.
Will it work? I have DA on another bike so not looking for a highend rig, just my riding/beater bike. 15,000 miles on the Bonti crankset so it's pretty much junk. I can live without the triple.
09-16-08, 12:06 AM
#2
Senior Member
Join Date: Sep 2007
Location: Gaseous Cloud around Uranus
Posts: 3,741
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Likes: 0
Liked 11 Times
in
7 Posts
I won't tell the shifter/derailler that grannies missing.You'll probably need to change the BB to a shorter one for the double so your chainline isn't off.
If the crankarms are OK and you can live with it,you can buy new chainrings much cheaper than $100.You probably only need the outer 2,I wouldn't think grannies worn too bad unless you do loaded touring.
If the crankarms are OK and you can live with it,you can buy new chainrings much cheaper than $100.You probably only need the outer 2,I wouldn't think grannies worn too bad unless you do loaded touring.
Last edited by Booger1; 09-16-08 at 12:14 AM.
09-16-08, 07:02 AM
#3
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
Depending on your shifter model, many were made to handle either a double or a triple. All 9-speed 105 and Ultegras were as well as 10-speed 105. All Campy Ergos are double/triple compatible.
Even if you have a triple-specific shifter you can use it on a double by adjusting the inner limit screw appropriately.
The rear derailleur is completly indifferent to what's up front as long as it has the needed chain wrap capacity. Your long cage will be fine, it will just have capacity you don't take advantage of.
Even if you have a triple-specific shifter you can use it on a double by adjusting the inner limit screw appropriately.
The rear derailleur is completly indifferent to what's up front as long as it has the needed chain wrap capacity. Your long cage will be fine, it will just have capacity you don't take advantage of.
09-16-08, 10:24 AM
#4
Elitist Troglodyte
Join Date: Jun 2006
Location: Dallas
Posts: 6,925
Bikes: 03 Raleigh Professional (steel)
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Really? Try eBay. They're pretty common, and often sold with BB. Any Shimano triple road crank will fit, and work. You should be able to score something for $30-100.
__________________
Stupidity got us into this mess - why can't it get us out?
- Will Rogers
Stupidity got us into this mess - why can't it get us out?
- Will Rogers
09-16-08, 12:07 PM
#5
Banned.
Thread Starter
Join Date: Dec 2005
Location: Upland Ca
Posts: 19,895
Bikes: Lemond Chambery/Cannondale R-900/Trek 8000 MTB/Burley Duet tandem
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 4 Times
in
3 Posts
Thanks for the time and info guys, looking good and in my favor!
TW, brifters ar 105 and der''s are Ultegra. Crank is Bontrager
so I plan on swapping the BB too!
TW, brifters ar 105 and der''s are Ultegra. Crank is Bontrager
so I plan on swapping the BB too!
