6 speed derailer works for 7 speed or no?
05-24-21, 11:19 PM
#1
Junior Member
Thread Starter
6 speed derailleur works for 7 speed or no?
Hello i am confused RD-TZ500-GS listed as 6 speed, but on website say 7 speed also okay?
Will this derailleur work on 7 speed cog?
Will this derailleur work on 7 speed cog?
05-24-21, 11:30 PM
#2
(rhymes with spook)
Join Date: Aug 2009
Location: Winslow, AR
Posts: 2,788
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 919 Post(s)
Liked 745 Times
in
546 Posts
do you know what the high and low limit adjuster screws on a derailleur are and do?
05-24-21, 11:46 PM
#3
Junior Member
Thread Starter
In my understanding 6 speed derailleur body has less travel than 7 speed so screws might not do the trick.
besides marketing why they even making different derailleur version 6, 6/7, 7/8 speed they might as well just make one 8 speed derailleur just limit movement with screws this would remove all the compatibility issues.
05-25-21, 12:32 AM
#4
(rhymes with spook)
Join Date: Aug 2009
Location: Winslow, AR
Posts: 2,788
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 919 Post(s)
Liked 745 Times
in
546 Posts
Yeah i know what limiter screws doing.
In my understanding 6 speed derailleur body has less travel than 7 speed so screws might not do the trick.
besides marketing why they even making different derailleur version 6, 6/7, 7/8 speed they might as well just make one 8 speed derailleur just limit movement with screws this would remove all the compatibility issues.
In my understanding 6 speed derailleur body has less travel than 7 speed so screws might not do the trick.
besides marketing why they even making different derailleur version 6, 6/7, 7/8 speed they might as well just make one 8 speed derailleur just limit movement with screws this would remove all the compatibility issues.
05-25-21, 12:50 AM
#5
Junior Member
Thread Starter
05-25-21, 04:53 AM
#6
Junior Member
Browse through https://si.shimano.com/ for the compatibility charts and you’ll find this.
Clip from 6s and 7s rear drivetrain compatibility
As can be seen, most of the rear derailleur for 7s can be used for 6s. A tiny number can only be used on 6s. If you navigate there, you’ll find some can even be used on 8s. The boundary isn’t a wall.
Clip from 6s and 7s rear drivetrain compatibility
As can be seen, most of the rear derailleur for 7s can be used for 6s. A tiny number can only be used on 6s. If you navigate there, you’ll find some can even be used on 8s. The boundary isn’t a wall.
Likes For dwsmartins:
05-25-21, 04:56 AM
#7
Senior Member
Join Date: Feb 2017
Location: Northern Shenandoah Valley
Posts: 4,140
Bikes: More bikes than riders
Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 1444 Post(s)
Liked 761 Times
in
569 Posts
Hello i am confused RD-TZ500-GS listed as 6 speed, but on website say 7 speed also okay?
Will this derailleur work on 7 speed cog?
Will this derailleur work on 7 speed cog?
05-25-21, 09:38 AM
#8
Senior Member
Join Date: Mar 2008
Posts: 8,688
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1074 Post(s)
Liked 295 Times
in
222 Posts
I Haven’t tried your exact RD, but I’d assume it will work fine. I’ve used an old Shimano 600 in a 10-speed rear with no issues wrt Sideways reach.
05-25-21, 10:56 AM
#9
(rhymes with spook)
Join Date: Aug 2009
Location: Winslow, AR
Posts: 2,788
Bikes: '83 univega gran turismo x2, '85 schwinn super le tour,'89 miyata triple cross, '91 GT tequesta, '90 yokota grizzly peak, '94 GT backwoods, '95'ish scott tampico, '98 bonty privateer, '93 mongoose crossway 625, '98 parkpre ariel, 2k'ish giant fcr3
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 919 Post(s)
Liked 745 Times
in
546 Posts
that tourney derailleur will handle up to 7spds without a doubt. i have a tourney derailleur that's the predecessor model to the one you're looking at. it came with the bike to shift a 7spd freewheel. but, i've seen them on other bikes before with 6spd freewheels. i don't know what you're financial restraints are, so in the interest of going budget there's the model you're looking at going for $17 on ebay right now. that's pretty cheap, man. and, hopefully it performs better than the one i have. it does looks like a better design and gets 4 out of 5 ratings on amazon
05-26-21, 01:05 PM
#10
Junior Member
Join Date: May 2021
Posts: 21
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Unless I missed it, isn’t the real point of this question to ensure that your shifter matches your rear cassette?
No matter how much you finesse it a six speed shifter will (almost) never work perfectly on a seven speed rear gear set. Nor will a seven speed shifter work perfectly on a six speed cassette/freewheel.
Yes all derailers have limits for their range but that range usually relates to the largest gear sizing. So first and foremost, are you using a seven speed shifter with a seven speed gear?
No matter how much you finesse it a six speed shifter will (almost) never work perfectly on a seven speed rear gear set. Nor will a seven speed shifter work perfectly on a six speed cassette/freewheel.
Yes all derailers have limits for their range but that range usually relates to the largest gear sizing. So first and foremost, are you using a seven speed shifter with a seven speed gear?
05-27-21, 07:59 AM
#11
Zip tie Karen
Join Date: Aug 2009
Location: Fair Oaks Ranch, TX
Posts: 7,004
Bikes: '13 Motobecane Fantom29 HT, '16 Motobecane Turino Pro Disc, '18 Velobuild VB-R-022, '21 Tsunami SNM-100
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1465 Post(s)
Liked 1,542 Times
in
806 Posts
The Tourney stuff was developed by Shimano as a 7-speed groupset. It is now being cross marketed into the 6-speed slot to broaden its usefulness and market. It's backward compatible for sure. The real question, if the OP is indexing (maybe not), is whether the shifters are compatible with the derailleur and the rear cog spacing.
05-27-21, 08:36 AM
#12
Senior Member
Join Date: Jul 2005
Location: Boulder County, CO
Posts: 4,393
Bikes: '80 Masi Gran Criterium, '12 Trek Madone, early '60s Frejus track
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 513 Post(s)
Liked 447 Times
in
336 Posts
Unless I missed it, isn’t the real point of this question to ensure that your shifter matches your rear cassette?
No matter how much you finesse it a six speed shifter will (almost) never work perfectly on a seven speed rear gear set. Nor will a seven speed shifter work perfectly on a six speed cassette/freewheel.
Yes all derailers have limits for their range but that range usually relates to the largest gear sizing. So first and foremost, are you using a seven speed shifter with a seven speed gear?
No matter how much you finesse it a six speed shifter will (almost) never work perfectly on a seven speed rear gear set. Nor will a seven speed shifter work perfectly on a six speed cassette/freewheel.
Yes all derailers have limits for their range but that range usually relates to the largest gear sizing. So first and foremost, are you using a seven speed shifter with a seven speed gear?
