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

New: Take part in the July Giveaway for a brand new 26" Thruster® Street Style BMX Cruiser Bicycle

New product launch: WIN an innovative aeroe Spider Rear Rack


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
 
687
12-29-2019, 05:47 AM
Last Post: Joe_W
 
1,064
04-21-2019, 10:41 PM
Last Post: peter bill
 
5,181
06-23-2017, 09:39 AM
Last Post: dude
 
5,937
05-30-2016, 12:55 PM
Last Post: DaveM
 
7,454
12-03-2015, 08:35 PM
Last Post: nfmisso
 
13,416
10-02-2013, 07:06 PM
Last Post: !TREK4ME!

Forum Jump:

[-]
10 Latest Posts
Dork disc - remove it or keep it?
Today 08:39 PM
Post a photo for aeroe Spider Rear Rack
Today 06:27 PM
26" Thruster® Street Style BMX | July 20...
Today 01:24 PM
Creaky crank with play and loosening
Today 11:21 AM
2020 road cycling season
Today 07:18 AM
FD cable pull on opposite side of frame
Today 04:18 AM
60s Viner Repainted..?
Yesterday 06:23 PM
budget speedometer
Yesterday 10:44 AM
Pinging noise fixed
Yesterday 08:08 AM
Need advice on Bike Rack
Yesterday 02:07 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
74 posts
no avatar 2. CharleyFarley
21 posts
no avatar 3. Painkiller
14 posts
no avatar 4. Papa Dom
10 posts
no avatar 5. G_M
8 posts