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#1
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Switching to Bar End Shifters
I have a late-1980s 12 speed Miele road bike. It currently has
downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html Thanks, Benjamin |
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#2
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Switching to Bar End Shifters
On Jul 29, 11:45 am, Benjamin Goldenberg
wrote: I have a late-1980s 12 speed Miele road bike. It currently has downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html Thanks, Benjamin If you have Shimano shifters, the Diatech adapters are probably your only choice. Even when Shimano offered "6-speed" bar-end shifters, they were just the 7-speed units with a shim that fit in the cable groove so the shifter pulled more cable. The only possibility is to find NOS Shimano 6/7-speed shifters and use the shim- it's a tiny thing, about the size and shape of a fingernail clipping. Easy to discard if you don't know what it's for. I'd say your chances are somewhere between slim and none. Get the Diatech adapters. Jeff |
#3
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Switching to Bar End Shifters
On Jul 29, 2:45 pm, Benjamin Goldenberg wrote:
I have a late-1980s 12 speed Miele road bike. It currently has downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html The Dia-tech barend mounting pods and a set of DT cable stops (also available from the same source) and you're on your way. |
#4
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Switching to Bar End Shifters
On Jul 29, 12:45 pm, Benjamin Goldenberg
wrote: I have a late-1980s 12 speed Miele road bike. It currently has downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html If you have Shimano DT 6s index shifters, the Dia-Tech adapters will work. They may work with other brands too. You'll want downtube cable stops. However, freewheels are a consumable. Your freewheel will eventually wear out. If you have a 6s Shimano freewheel, you could replace it with a 7s freewheel, and 7s shifters. This will work with a 6s Shimano rear derailleur as long as it isn't Dura-Ace (Was there a 6s index Dura-Ace?) Also, 8s non-DA shifters will index okay with a 7s freewheel. Of course, you could just buy the Dia-Tech pods now and later get a pair of 7s shifters. The main point of this is that you shouldn't go on a quest for 6s bar-end shifters just to match the freewheel, since the freewheel is a consumable. Ben |
#5
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Switching to Bar End Shifters
I've got the Dia-Tech adapters on the ends of the mustache bars on my
MB-3, along with the Silver shifters. They work very nicely, they're well made and pretty simple. Like another poster said, it might be nice to upgrade to a 7 or 8 speed cassette if enough drivetrain parts wear out in the next few years. Until then, the Dia-Tech adapters should fill the bill nicely. mark Benjamin Goldenberg wrote: I have a late-1980s 12 speed Miele road bike. It currently has downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html Thanks, Benjamin |
#6
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Switching to Bar End Shifters
On Jul 29, 9:03 pm, mark wrote:
I've got the Dia-Tech adapters on the ends of the mustache bars on my MB-3, along with the Silver shifters. They work very nicely, they're well made and pretty simple. Like another poster said, it might be nice to upgrade to a 7 or 8 speed cassette if enough drivetrain parts wear out in the next few years. Until then, the Dia-Tech adapters should fill the bill nicely. If a future "upgrade' to 7or 8 speed is on the OP's agenda, the sensible purchase is a set of 8sp barend shifters now (but not from Riv, they are cheaper elsewhere; probably ~$55/set). Put the 6sp levers on the (included) barend mounts for the present and use the 8sp levers to shift a 7 or 8 sp setup in the future. |
#8
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Switching to Bar End Shifters
On Jul 29, 9:29 pm, A Muzi wrote:
Benjamin Goldenberg wrote: I have a late-1980s 12 speed Miele road bike. It currently has downtube shifters. I'd like to replace the shifters with bar-end shifters. I originally thought I'd look for 6 speed shifters, but these don't seem to exist in today's world of 10 speed cassettes. I realize that I could use a newer shifter in friction mode, but would like to preserve the indexing if possible. I was wondering if anyone here knew of a source of 6 speed shifters or had experience with these adapters sold by Rivendell: http://www.rivbike.com/webalog/shifters_derailleurs/17068.html wrote: If you have Shimano DT 6s index shifters, the Dia-Tech adapters will work. They may work with other brands too. You'll want downtube cable stops. Thanks for the advice everyone. I think I'll go with the Dia-Tech adapters. I have heard mention of a special piece needed to convert Shimano downtube shifters to bar-end shifters. It sounds as if there is a curved piece to fit the downtube that needs to be replaced with a flat piece for the bar end. Does anyone know what this refers to? Because the shifters came with the bike and I bought it used, I don't have any extra components. Is this piece actually needed, and if so, where can they be found. Thanks, Benjamin |
#9
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Switching to Bar End Shifters
On Jul 30, 12:46 am, Benjamin Goldenberg
wrote: Thanks for the advice everyone. I think I'll go with the Dia-Tech adapters. I have heard mention of a special piece needed to convert Shimano downtube shifters to bar-end shifters. It sounds as if there is a curved piece to fit the downtube that needs to be replaced with a flat piece for the bar end. Does anyone know what this refers to? Because the shifters came with the bike and I bought it used, I don't have any extra components. Is this piece actually needed, and if so, where can they be found. It's a little chromed plastic washer-like thing about 4mm thick that fits over the square base of a standard shifter mount. It provides a tab that orients the index shifters. There are two kinds, the only difference is the side away from the shift levers. One has a curve to match a typical downtube radius, the other is flat. You may have the curved ones on your bike now. If so, you can probably file a little off the curve to fit the Dia-Tech bases. This also may be the kind of thing that a bike shop would have a box of somewhere in the back. When you do get these thingies, you have to orient the tab correctly or the shift clicks won't be in the right position. It's not hard once you know that. Ben |
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