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

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Deore LX Derailleurs?
#1
I have two Deore LX derailleurs... one is a RD550 and the other is a RD565.
Which one is a better derailleur or is there a better one?? Any differences between the two other than the model number?? Both have the SGS long cage.
Trying to figure out the Shimano numbers and quality grades.
Thanks
  Reply
#2
(02-11-2015, 10:12 PM)!TREK4ME! Wrote:  I have two Deore LX derailleurs... one is a RD550 and the other is a RD565.
Which one is a better derailleur or is there a better one?? Any differences between the two other than the model number?? Both have the SGS long cage.
Trying to figure out the Shimano numbers and quality grades.
Thanks

The difference between them are the years produced. the m550 is the earlier one and would most resemble the older deoreII and XT, and MOuntainLX 6/7 speed.
the m565 would be the next Gen for 7/8 speed, doing away with the polished alloy, going all black. and rapidfire shifters, the m550 would have been matched with top mount thunbies or push push sti shifters. They are both fine Derailleurs. the m550 would be pre 1993 and the m565 mid 90's
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply
#3
(02-11-2015, 11:12 PM)painkiller Wrote:  
(02-11-2015, 10:12 PM)!TREK4ME! Wrote:  I have two Deore LX derailleurs... one is a RD550 and the other is a RD565.
Which one is a better derailleur or is there a better one?? Any differences between the two other than the model number?? Both have the SGS long cage.
Trying to figure out the Shimano numbers and quality grades.
Thanks

The difference between them are the years produced. the m550 is the earlier one and would most resemble the older deoreII and XT, and MOuntainLX 6/7 speed.
the m565 would be the next Gen for 7/8 speed, doing away with the polished alloy, going all black. and rapidfire shifters, the m550 would have been matched with top mount thunbies or push push sti shifters. They are both fine Derailleurs. the m550 would be pre 1993 and the m565 mid 90's

Awesome !!.... Thanks !!!
  Reply
#4
(02-11-2015, 10:12 PM)!TREK4ME! Wrote:  I have two Deore LX derailleurs... one is a RD550 and the other is a RD565.
Which one is a better derailleur or is there a better one?? Any differences between the two other than the model number?? Both have the SGS long cage.
Trying to figure out the Shimano numbers and quality grades.
Thanks

the are the seme!!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
1,730
12-29-2019, 05:47 AM
Last Post: Joe_W
 
2,004
04-21-2019, 10:41 PM
Last Post: peter bill
 
5,828
06-23-2017, 09:39 AM
Last Post: dude
 
6,541
05-30-2016, 12:55 PM
Last Post: DaveM
 
8,205
12-03-2015, 08:35 PM
Last Post: nfmisso

Forum Jump:

[-]
10 Latest Posts
Chain skips under heavy load when pedall...
Today 06:18 PM
What's your No.1 concern when you purcha...
Today 06:16 PM
[Sponsored] Souke Sports Cycling Apparel...
Today 06:11 PM
What was your first bicycle?
Today 04:43 PM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 04:19 PM
Bike evaluation
Yesterday 02:06 AM
V Brakes just won’t adjust properly
Yesterday 12:19 AM
Is this frame dent a concern?
10-13-2021 04:50 PM
Looking for Cycling Apparel Testers - So...
10-12-2021 10:10 PM
Cycling Training Programs
10-12-2021 04:54 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. Souke Sports
23 posts
no avatar 2. Criminal
13 posts
no avatar 3. ReapThaWhirlwind
11 posts
no avatar 4. Zviedrs
9 posts
no avatar 5. Jesper
8 posts