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#1
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quality 8 speed MTB shifters? (or 9 spd shifter with 8 spd cassette)?
Greetings,
I am currently looking to upgrade the entry level integrated shifter/brakes on my 2005 Trek 4300. I am looking to improve quality and prefer the ability to select separate shifters and brakes for maximum options. I just picked up a set of Avid single digit ti brake levers, so I am set there. Now that I am shopping for shifters I am having some difficulties. Virtually all the indexed trigger shifters for sale are 9 spd. I have an 8 spd cassette with Alivio rear derailer. Of the few 8 spd shifters I find available the quality seems to top out with the Alivo line. I'd prefer to go a bit above that for reliability and longer life (Deore, Deore LX maybe XT), but don't need high end racing type gear. Also, not looking for grip shifters. My questions- Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? Thanks, Tracy |
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#2
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Pizza Man wrote:
Greetings, I am currently looking to upgrade the entry level integrated shifter/brakes on my 2005 Trek 4300. I am looking to improve quality and prefer the ability to select separate shifters and brakes for maximum options. I just picked up a set of Avid single digit ti brake levers, so I am set there. Now that I am shopping for shifters I am having some difficulties. Virtually all the indexed trigger shifters for sale are 9 spd. I have an 8 spd cassette with Alivio rear derailer. Of the few 8 spd shifters I find available the quality seems to top out with the Alivo line. I'd prefer to go a bit above that for reliability and longer life (Deore, Deore LX maybe XT), but don't need high end racing type gear. Also, not looking for grip shifters. My questions- Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! The only additional parts you need for 9-speed are a new chain and cassette, and these are normally consumable parts anyway--odds are yours are already close to due for replacement. Some folks will tell you that you need a lot of other stuff to convert an 8-speed bike to 9-speed, but they're wrong. Also, you can generally use the 9-speed shifters with your old 8-speed cassette by using the "alternate cable routing" shown at http://sheldonbrown.com/dura-ace.html#alternate Sheldon "Insert Nickname Here" Brown +-----------------------------------------------------------------+ | This message has been sent to you using recycled electrons | | exclusively. Please do not discard them after use, | | send them along and help conserve these irreplaceable | | sub-atomic resources for future generations. | +-----------------------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
#3
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Pizza Man wrote:
Greetings, I am currently looking to upgrade the entry level integrated shifter/brakes on my 2005 Trek 4300. I am looking to improve quality and prefer the ability to select separate shifters and brakes for maximum options. I just picked up a set of Avid single digit ti brake levers, so I am set there. Now that I am shopping for shifters I am having some difficulties. Virtually all the indexed trigger shifters for sale are 9 spd. I have an 8 spd cassette with Alivio rear derailer. Of the few 8 spd shifters I find available the quality seems to top out with the Alivo line. I'd prefer to go a bit above that for reliability and longer life (Deore, Deore LX maybe XT), but don't need high end racing type gear. Also, not looking for grip shifters. My questions- Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! The only additional parts you need for 9-speed are a new chain and cassette, and these are normally consumable parts anyway--odds are yours are already close to due for replacement. Some folks will tell you that you need a lot of other stuff to convert an 8-speed bike to 9-speed, but they're wrong. Also, you can generally use the 9-speed shifters with your old 8-speed cassette by using the "alternate cable routing" shown at http://sheldonbrown.com/dura-ace.html#alternate Sheldon "Insert Nickname Here" Brown +-----------------------------------------------------------------+ | This message has been sent to you using recycled electrons | | exclusively. Please do not discard them after use, | | send them along and help conserve these irreplaceable | | sub-atomic resources for future generations. | +-----------------------------------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-9772 FAX 617-244-1041 http://harriscyclery.com Hard-to-find parts shipped Worldwide http://captainbike.com http://sheldonbrown.com |
#4
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Sheldon Brown wrote in news:416D6E16.9090907
@sheldonbrown.com: I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! In my opinion, 8 speed is a more reliable system for a mountain bike. The chain is stronger and the cogs are thicker so they both should wear longer. The gap between cogs is farther apart so shifting isn't so affected by dirt and muck. This is not only my opinion, but that shared by Mountain Bike Action. I've been very satisfied with my 8 speed components. But of course if you can't find the parts... -- Mike DeMicco |
#5
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Sheldon Brown wrote in news:416D6E16.9090907
@sheldonbrown.com: I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! In my opinion, 8 speed is a more reliable system for a mountain bike. The chain is stronger and the cogs are thicker so they both should wear longer. The gap between cogs is farther apart so shifting isn't so affected by dirt and muck. This is not only my opinion, but that shared by Mountain Bike Action. I've been very satisfied with my 8 speed components. But of course if you can't find the parts... -- Mike DeMicco |
#6
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My questions-
Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! The only additional parts you need for 9-speed are a new chain and cassette, and these are normally consumable parts anyway--odds are yours are already close to due for replacement. Some folks will tell you that you need a lot of other stuff to convert an 8-speed bike to 9-speed, but they're wrong. Also, you can generally use the 9-speed shifters with your old 8-speed cassette by using the "alternate cable routing" shown at http://sheldonbrown.com/dura-ace.html#alternate Sheldon "boilerplate" Brown, Thank you for the helpful info. The link was very useful. I have an Alivio rear derailleur and unfortunately it appears to be only 8 speed (per the Shimano web site and some online retail sites). Unless you have any tricks up your sleeve, I'll have to add a new rear derailleur to the shopping list. I'll take a look and see if the l'il Alivio even has the capability for the suggested "alternate cable routing". That looks like a quick fix (assuming I can get a steal on an 8 spd shifter). I may just wait till I have trashed more components. The bike is less than 2 months old and still in superb shape. The brakes were upgraded by The LBS to deal with a braking problem. I figured this is a great time to get some decent brake levers and eBay had a good deal. Ooops, can't mount the new brake levers with the integrated shift/brake gizmo already on the bike. New shifters seemed like a good quick fix. Which leads to the need for new chain, new cassette, and new rear derailleur, on a new bike...... At least when I wear out the existing drivetrain I can just go ahead and make the jump to 9 speed with confidence. Or just go nuts and rip out all the 8 spd now and go 9 spd....Hmmmmm Thanks for the assistance, Tracy "Thinking out loud" Olson |
#7
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My questions-
Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! The only additional parts you need for 9-speed are a new chain and cassette, and these are normally consumable parts anyway--odds are yours are already close to due for replacement. Some folks will tell you that you need a lot of other stuff to convert an 8-speed bike to 9-speed, but they're wrong. Also, you can generally use the 9-speed shifters with your old 8-speed cassette by using the "alternate cable routing" shown at http://sheldonbrown.com/dura-ace.html#alternate Sheldon "boilerplate" Brown, Thank you for the helpful info. The link was very useful. I have an Alivio rear derailleur and unfortunately it appears to be only 8 speed (per the Shimano web site and some online retail sites). Unless you have any tricks up your sleeve, I'll have to add a new rear derailleur to the shopping list. I'll take a look and see if the l'il Alivio even has the capability for the suggested "alternate cable routing". That looks like a quick fix (assuming I can get a steal on an 8 spd shifter). I may just wait till I have trashed more components. The bike is less than 2 months old and still in superb shape. The brakes were upgraded by The LBS to deal with a braking problem. I figured this is a great time to get some decent brake levers and eBay had a good deal. Ooops, can't mount the new brake levers with the integrated shift/brake gizmo already on the bike. New shifters seemed like a good quick fix. Which leads to the need for new chain, new cassette, and new rear derailleur, on a new bike...... At least when I wear out the existing drivetrain I can just go ahead and make the jump to 9 speed with confidence. Or just go nuts and rip out all the 8 spd now and go 9 spd....Hmmmmm Thanks for the assistance, Tracy "Thinking out loud" Olson |
#9
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(Pizza Man) wrote in message . com...
My questions- Are there any decent quality trigger type 8 speed shifters currently available? Can I buy a 9 speed shifter and just dial in the rear derailer so it just stops after 8 gears? If so, is this hard on the shifter or rear dearailer if I accidentally try to shift to that phantom 9th gear? sheldon I get asked this a lot, so I have a boilerplate response: snip The only additional parts you need for 9-speed are a new chain and cassette, and these are normally consumable parts anyway--odds are yours are already close to due for replacement. snip Sheldon "boilerplate" Brown, Thank you for the helpful info. The link was very useful. I have an Alivio rear derailleur and unfortunately it appears to be only 8 speed (per the Shimano web site and some online retail sites). Unless you have any tricks up your sleeve, I'll have to add a new rear derailleur to the shopping list. I'll take a look and see if the l'il Alivio even has the capability for the suggested "alternate cable routing". That looks like a quick fix (assuming I can get a steal on an 8 spd shifter). I may just wait till I have trashed more components. The bike is less than 2 months old and still in superb shape. The brakes were upgraded by The LBS to deal with a braking problem. I figured this is a great time to get some decent brake levers and eBay had a good deal. Ooops, can't mount the new brake levers with the integrated shift/brake gizmo already on the bike. New shifters seemed like a good quick fix. Which leads to the need for new chain, new cassette, and new rear derailleur, on a new bike...... At least when I wear out the existing drivetrain I can just go ahead and make the jump to 9 speed with confidence. Or just go nuts and rip out all the 8 spd now and go 9 spd....Hmmmmm Thanks for the assistance, Tracy "Thinking out loud" Olson Stick with the 8speed for now, ride the bike, trash it, see what breaks. Replace it. When you wear out your current casette, replace it with a 9 speed and upgrade your shifters. The low end shimano stuff (alivio) is really pretty darn good these days. If you really want to stick with 8speed (possible future issues with parts avalibility) you can upgrade to these: http://www.bikeusa.com/MERCHANT2/mer..._Co de=LD8730 NOS STX-RC for $35. (Grades used to run Alivio,STX,STX-RC,LX,XT,XTR) If you do decide to move to 9sp, you don't need to change the derailer, they all work the same. Shimano may tell you differently but they are selling you something. You also don't need to "upgrade" your chainrings. As Sheldon said the ONLY thing you need different between 8 and 9sp is the chain, shifters, and casette. (throw a rear hub into the mix and that's the only difference between 7 through 10 speed) -Tim |
#10
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Mike DeMicco wrote: Sheldon Brown wrote in news:416D6E16.9090907 @sheldonbrown.com: I get asked this a lot, so I have a boilerplate response: Even if you could find them, I wouldn't recommend buying 8-speed shifters unless they are _very_ cheap. It makes more sense to upgrade to 9-speed, since the expensive part of this conversion is the shifter, and you already need a shifter! In my opinion, 8 speed is a more reliable system for a mountain bike. The chain is stronger... Evidence? ... and the cogs are thicker... 9 x 1.78 mm = 16.02 mm 8 x 1.80 mm = 14.10 mm 9sp have more cog face area in the aggregate, so there is not necessarily a basis for this claim, but maybe a basis for the *opposite* claim, especially if the extra cog is in the middle of the range. Closer spacing not commensurate with cog width means the face area is more densely packed with metal -- metal that engages the chain. ...so they both should wear longer. Evidence? The 8sp cogs are only 1.1% thicker, so even on a single cog basis, the claim is a stretch in any practical way. The 9sp chain might wear faster, but that would depend upon the sleeve/pin interface width (which is not visible). If the 9sp pin/sleeve interface is a lesser linear length than the 8sp chain, then the claim regarding chain wear may well be true. However, all claims of increased wear are typically absent of any rational reasoning. (In any event, there will be tradeoff judgement even if there is faster wear. Do I want the extra gear, or do I want to buy a new chain slightly more often.) The gap between cogs is farther apart so shifting isn't so affected by dirt and muck. This is not only my opinion, but that shared by Mountain Bike Action. Hey, well if it is in MBA, then who could argue? I've been very satisfied with my 8 speed components. I too am highly satisfied w/ 8sp systems. But have you actually ridden/tested a 9sp in a scientific way to make the "farther apart" claim. But of course if you can't find the parts... I don't seem to have much trouble. |
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