Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the September Giveaway for a Spider Rear Rack and a Heavy Duty Drybag from aeroe


Changing out crankset
#1
I'm currently riding a ten year old bike with a 105 triple crank, 9 speed cassette. I rarely use the innermost ring. I would like to try a compact crank (105 or Ultegra). Will I have to change out the front STI lever as well?
  Reply
#2
Hmm not too sure but maybe, I would wait for one of the others who have/had this model
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#3
(12-02-2012, 08:08 PM)RonK Wrote:  I'm currently riding a ten year old bike with a 105 triple crank, 9 speed cassette. I rarely use the innermost ring. I would like to try a compact crank (105 or Ultegra). Will I have to change out the front STI lever as well?

No, I don't think so, the spaces between the front chainrings is the same on a double as it is on a triple. You should be able to use the limit screws on the front mech to prevent the chain coming off the inside of the smaller ring.
  Reply
#4
Depends on the STI lever - some triples will work okay with doubles, some will not.
Nigel
  Reply
#5
Ron - more than likely it will work. Can you pull the hood boot back and find the model number? It will probably read ST-5xxx something.
Wheelies don't pop themselves. (from a QBP fortune cookie)
  Reply
#6
This is why I said to wait Wink . Learn something new each post Smile .
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#7
(12-03-2012, 07:25 PM)RobAR Wrote:  Ron - more than likely it will work. Can you pull the hood boot back and find the model number? It will probably read ST-5xxx something.

So you're saying the older 105 STIs could be switched from double to triple? Wow, that's good to remember (though mine are too new...)
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post

Forum Jump:

[-]
10 Latest Posts
Hello from North Carolina
Yesterday 07:05 PM
frame choices
Yesterday 10:08 AM
Front Derailer fails to shift to the big...
Yesterday 06:12 AM
Raleigh "Trail" bike
Yesterday 05:02 AM
Know about the Hercules?
Yesterday 04:18 AM
Pedals: Clip vs. Clipless
09-20-2020 07:43 PM
90's Raleigh R600
09-20-2020 06:21 PM
Proper way to torque a crank bolt on a s...
09-20-2020 03:37 PM
Where are you from and What is your favo...
09-20-2020 02:19 PM
Tour de France 2020
09-20-2020 12:08 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
36 posts
no avatar 2. G_M
14 posts
no avatar 3. Sagan97
10 posts
no avatar 4. Papa Dom
10 posts
no avatar 5. Painkiller
10 posts