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

New: Take Part in the new April's Giveaway for a Chance to Win the Euybike S4 Pro Max ebike worth $1299


Rear derailleur
#1
Are rear derailleurs set up for a specific number of cogs or is the travel determined entirely by the shifter? What I am wondering is will a Shimano derailler from a bike with a 5 cog cassette work on a bike with a 7 cog cassette if I use the 7 speed shifter?
  Reply
#2
(05-10-2011, 12:08 PM)Myosmith Wrote:  Are rear derailleurs set up for a specific number of cogs or is the travel determined entirely by the shifter? What I am wondering is will a Shimano derailler from a bike with a 5 cog cassette work on a bike with a 7 cog cassette if I use the 7 speed shifter?

Probably, as long as you set up the H and L limit screws to not run into the spokes or frame. Though I have heard different shifters and different derailleurs don't function well.
  Reply
#3
It will have to be trial and see.
You don't need to fit the chain.
Just fit the derailleur and cable and try it.
The derailleur jockey wheel should line up directly under each sprocket for every click of the shifter.
Ride hard or ride home alone!
  Reply


Possibly Related Threads...

Forum Jump:

[-]
10 Latest Posts
Good morning form Alberta CA
Yesterday 10:58 PM
How to deal with rusty chain
05-04-2025 10:49 PM
Front derailer not moving
05-04-2025 10:35 PM
Wearable Fitness Trackers
05-04-2025 02:25 PM
The great thing about trikes
05-04-2025 11:42 AM
Gu/SiS/Energy Gels replacement
05-04-2025 09:22 AM
Looking for an electric bike for someone...
05-03-2025 12:51 PM
What are the best cost effective ways to...
05-02-2025 09:17 AM
Hoping someone can help me identify this...
05-01-2025 09:14 PM
RECOMMENDATION
04-30-2025 10:51 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Painkiller
20 posts
no avatar 2. enkei
16 posts
no avatar 3. meamoantonio
15 posts
no avatar 4. Flowrider
15 posts
no avatar 5. SPINMAN
11 posts