whats the difference between medium cage and long on rear derailer
#1
wannabe
Thread Starter
Join Date: Oct 2003
Location: Philadelphia
Posts: 141
Bikes: 2003 hardrock pro
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
whats the difference between medium cage and long on rear derailer
i'm looking to buy a new rear derailer and ran in-to the option for long or medium cage what the difference and what is recommended for 2003 hardrock pro
thanx
thanx
#3
Still kicking.
Shorter the cage=The quicker the shift is going to be. It has noting to relate to what the amount of teeth a cog on cogset has. If it did, me and many others would be in big trouble for using short caged deraillieurs on larger cassettes.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#5
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
Shorter the cage=The quicker the shift is going to be. It has noting to relate to what the amount of teeth a cog on cogset has. If it did, me and many others would be in big trouble for using short caged deraillieurs on larger cassettes.
#6
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by 100prcnt Marine
i'm looking to buy a new rear derailer and ran in-to the option for long or medium cage what the difference and what is recommended for 2003 hardrock pro
thanx
thanx
#7
Still kicking.
What I was trying to say that the myth about having to use a long cage on a larger cogset is false. Even with a long cage on a larger cogset, the wrap capacity is about the same as a short cage. The less wrap, the quicker the shift you will get. The difference in between the amount of wrap capacity in a long and short cage is in all actuality insignificant. You still have plenty of chain on the cog for it to work effectively. Since 100percent Marine does about the same kind of riding I do, a major advantage to running a shorter caged deraillieur is that it gives you more clearance when you are in the rough stuff..
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#8
Still kicking.
With any 9 speed cogset, you always count everything on the 9th gear the smallest cog in size on the back. Shifting is out of whack get it to the 9th gear on the back and adjust from there. I am also 100% sure there won't be 45 teeth on the smallest cog on the back.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#9
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
What .......... a major advantage to running a shorter caged deraillieur is that it gives you more clearance when you are in the rough stuff..
#10
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
With any 9 speed cogset, you always count everything on the 9th gear the smallest cog in size on the back. Shifting is out of whack get it to the 9th gear on the back and adjust from there. I am also 100% sure there won't be 45 teeth on the smallest cog on the back.
#11
Gerbil of Doom
Join Date: Jun 2004
Location: Edinburgh
Posts: 71
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I always thought the cage length was about chain capacity - if you have a triple and a wide range rear the difference in chain length between the extreme combinations is much more than that of a double with a 12-21 cassette. Hence the longer arm and more chain for the former setup.
#13
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by TechJD
well maybe I'm wrong but then how come I havent seen a short or med cage rear derailes rated for 34 teeth but I have for long cage
Last edited by sydney; 08-21-04 at 06:01 PM.
#14
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by blonde
I always thought the cage length was about chain capacity - if you have a triple and a wide range rear the difference in chain length between the extreme combinations is much more than that of a double with a 12-21 cassette. Hence the longer arm and more chain for the former setup.
#15
Senior Member
Join Date: Feb 2004
Location: St Peters, Missouri
Posts: 30,225
Bikes: Catrike 559 I own some others but they don't get ridden very much.
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1572 Post(s)
Liked 643 Times
in
364 Posts
Man, there's a lot of misinformation going on here!
Rear derailleurs have two significant capacities, largest rear cog and chain wrap capacity. They are two entirely different things.
Shimano mountain bike derailleurs are rated for 34 tooth large cogs regardless of cage length. Shimano mountain bike derailleurs are rated for 27 teeth regardless of cage length.
Shimano rear derailleurs, both mountain and road come in two cage lengths. Mountain derailleurs will wrap up either 33 or 45 teeth of chain and road derailleurs will wrap up either 29 or 37 teeth of chain. I can't subjectively feel any difference in shifting crispness due to cage length. I can't see why there would be any difference because the parallelgrams, that do the shifting, are the same.
Campy is a little different. Medium cage Campy derailleurs will handle a slightly larger rear cog as well as wrap up more chain than the comperable short cage version.
Rear derailleurs have two significant capacities, largest rear cog and chain wrap capacity. They are two entirely different things.
Shimano mountain bike derailleurs are rated for 34 tooth large cogs regardless of cage length. Shimano mountain bike derailleurs are rated for 27 teeth regardless of cage length.
Shimano rear derailleurs, both mountain and road come in two cage lengths. Mountain derailleurs will wrap up either 33 or 45 teeth of chain and road derailleurs will wrap up either 29 or 37 teeth of chain. I can't subjectively feel any difference in shifting crispness due to cage length. I can't see why there would be any difference because the parallelgrams, that do the shifting, are the same.
Campy is a little different. Medium cage Campy derailleurs will handle a slightly larger rear cog as well as wrap up more chain than the comperable short cage version.
#16
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by Retro Grouch
Campy is a little different. Medium cage Campy derailleurs will handle a slightly larger rear cog as well as wrap up more chain than the comperable short cage version.
#17
Still kicking.
Originally Posted by Retro Grouch
Man, there's a lot of misinformation going on here!
Rear derailleurs have two significant capacities, largest rear cog and chain wrap capacity. They are two entirely different things.
Shimano mountain bike derailleurs are rated for 34 tooth large cogs regardless of cage length. Shimano mountain bike derailleurs are rated for 27 teeth regardless of cage length.
Shimano rear derailleurs, both mountain and road come in two cage lengths. Mountain derailleurs will wrap up either 33 or 45 teeth of chain and road derailleurs will wrap up either 29 or 37 teeth of chain. I can't subjectively feel any difference in shifting crispness due to cage length. I can't see why there would be any difference because the parallelgrams, that do the shifting, are the same.
Campy is a little different. Medium cage Campy derailleurs will handle a slightly larger rear cog as well as wrap up more chain than the comperable short cage version.
Rear derailleurs have two significant capacities, largest rear cog and chain wrap capacity. They are two entirely different things.
Shimano mountain bike derailleurs are rated for 34 tooth large cogs regardless of cage length. Shimano mountain bike derailleurs are rated for 27 teeth regardless of cage length.
Shimano rear derailleurs, both mountain and road come in two cage lengths. Mountain derailleurs will wrap up either 33 or 45 teeth of chain and road derailleurs will wrap up either 29 or 37 teeth of chain. I can't subjectively feel any difference in shifting crispness due to cage length. I can't see why there would be any difference because the parallelgrams, that do the shifting, are the same.
Campy is a little different. Medium cage Campy derailleurs will handle a slightly larger rear cog as well as wrap up more chain than the comperable short cage version.
Oh and I just looked through one of the books [i[Zinn and The Art of Mountain Bike Maintenance[/i] under the transmition and under section called cable tension adjustment. It says Biggest front smallest rear.(Doesn't have to do with the quoted message.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#18
Senior Member
Join Date: Jul 2004
Posts: 229
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
ok so you all are say for best resualts I need what a MTB read rerailer on my Road bike ?
rear cassette is 14-17-21-26-32 and Front Chainrings are 52/39
it gives me a nice ratio range from 32 to 100
rear cassette is 14-17-21-26-32 and Front Chainrings are 52/39
it gives me a nice ratio range from 32 to 100
#19
Still kicking.
No, 100 percent is a mountain biker if I remember and he was asking about the mtb drivetrain.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#21
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
Oh and I just looked through one of the books [i[Zinn and The Art of Mountain Bike Maintenance[/i] under the transmition and under section called cable tension adjustment. It says Biggest front smallest rear.(Doesn't have to do with the quoted message.
#22
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by TechJD
ok so you all are say for best resualts I need what a MTB read rerailer on my Road bike ?
rear cassette is 14-17-21-26-32 and Front Chainrings are 52/39
it gives me a nice ratio range from 32 to 100
rear cassette is 14-17-21-26-32 and Front Chainrings are 52/39
it gives me a nice ratio range from 32 to 100
#23
Still kicking.
Maybee we should actually answer the question he(100 Percent Marine) initially asked what deraillieur size would be recommended, then another came in assuming that the road transmition is the same thing as a mountain bike transmition. The theory is the same but the tech is in completely opposite(Well now with shimano bringing the rapid rise stuff over to mountain from road, which has blurred the lines.) directions. The tech in mtb transmitions has been designed starting at a 38 down to 32. Road bikes go from 32 down if I remember. Eventually it will all be the same. Yes a mtb can handle a 32.
To answer 100%'s question it doesn't really matter, it all depends on how hard you want to pedal.
To answer 100%'s question it doesn't really matter, it all depends on how hard you want to pedal.
__________________
Appreciate the old bikes more than the new.
Appreciate the old bikes more than the new.
#24
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
To answer 100%'s question it doesn't really matter, it all depends on how hard you want to pedal.
#25
Senior Member
Join Date: Jan 2004
Posts: 9,428
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Originally Posted by KonaRider24
Maybee we should actually answer the question he(100 Percent Marine) initially asked what deraillieur size would be recommended, then another came in assuming that the road transmition is the same thing as a mountain bike transmition. The theory is the same but the tech is in completely opposite(Well now with shimano bringing the rapid rise stuff over to mountain from road, which has blurred the lines.) directions. The tech in mtb transmitions has been designed starting at a 38 down to 32. Road bikes go from 32 down if I remember. Eventually it will all be the same.