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#11
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Problems with upper gears
On Sunday, 8 September 2019 22:48:21 UTC-4, AK wrote:
On Sunday, September 8, 2019 at 4:17:40 PM UTC-5, AMuzi wrote: On 9/8/2019 3:13 PM, Sir Ridesalot wrote: On Sunday, 8 September 2019 10:35:43 UTC-4, AMuzi wrote: On 9/7/2019 3:00 PM, AK wrote: I recently had my rear derailleur replaced along with new shifters on a 18 speed mountain bike. Shifting in the lower gears is smooth and there is no noise when pedaling. I can shift smoothly into all gears however, there is a "clicking" sound when I am in the upper gears. The bike tech who did the work said he could not find a seven speed shifter and installed an eight speed shifter and told me he would make adjustments so it would work. I have been told this. "It is a problem, but can be fixed by also replacing the freewheel, but I definitely wouldn't be paying for any service from a tech who didn't know this would be a problem." https://imgur.com/a/xF73i91 https://imgur.com/a/5VB6gat The 8 shifter is compatible. Common problems include cable/casing/ferrule issues and rear changer misalignment. It ought to shift well and quietly with all new equipment. This has a new seven chain, new FW and new cable/casing right? Since when is an 8-speed shifter compatible with a 6-speed cassette or freewheel? Cheers Yikes. You're right. I missed that. If it's still a SIX freewheel, there's no way that shifter could work. And by the way, WTF? Six shifters are cheap and plentiful. As are Sevens. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 Is this what I need? https://www.ebay.com/itm/Sunrace-M53...AAAOSwdA9asB-v I think I can sucessfully install it. I found this video on adjusting the derailleur. https://www.bing.com/videos/search?q...il&FORM=VIREHT Andy NO! If you have an INDEXED SIX-SPEED freewheel or cassette and you want to keep it indexed then you need a SIX-SPEED shifter. 7 speed and 6 speed are different thicknesses of cogs and spacing between cogs is different too. Cheers |
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#12
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Problems with upper gears
6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that.
7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. |
#13
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Problems with upper gears
On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote:
6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy |
#14
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Problems with upper gears
On 9/8/2019 9:48 PM, AK wrote:
On Sunday, September 8, 2019 at 4:17:40 PM UTC-5, AMuzi wrote: On 9/8/2019 3:13 PM, Sir Ridesalot wrote: On Sunday, 8 September 2019 10:35:43 UTC-4, AMuzi wrote: On 9/7/2019 3:00 PM, AK wrote: I recently had my rear derailleur replaced along with new shifters on a 18 speed mountain bike. Shifting in the lower gears is smooth and there is no noise when pedaling. I can shift smoothly into all gears however, there is a "clicking" sound when I am in the upper gears. The bike tech who did the work said he could not find a seven speed shifter and installed an eight speed shifter and told me he would make adjustments so it would work. I have been told this. "It is a problem, but can be fixed by also replacing the freewheel, but I definitely wouldn't be paying for any service from a tech who didn't know this would be a problem." https://imgur.com/a/xF73i91 https://imgur.com/a/5VB6gat The 8 shifter is compatible. Common problems include cable/casing/ferrule issues and rear changer misalignment. It ought to shift well and quietly with all new equipment. This has a new seven chain, new FW and new cable/casing right? Since when is an 8-speed shifter compatible with a 6-speed cassette or freewheel? Cheers Yikes. You're right. I missed that. If it's still a SIX freewheel, there's no way that shifter could work. And by the way, WTF? Six shifters are cheap and plentiful. As are Sevens. Is this what I need? https://www.ebay.com/itm/Sunrace-M53...AAAOSwdA9asB-v I think I can sucessfully install it. I found this video on adjusting the derailleur. https://www.bing.com/videos/search?q...il&FORM=VIREHT Andy Use that Seven shifter with a Seven freewheel and Seven chain. If you already own a new Six speed drive train, that shifter is the wrong part. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#15
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Problems with upper gears
On 9/8/2019 9:48 PM, AK wrote:
On Sunday, September 8, 2019 at 4:17:40 PM UTC-5, AMuzi wrote: On 9/8/2019 3:13 PM, Sir Ridesalot wrote: On Sunday, 8 September 2019 10:35:43 UTC-4, AMuzi wrote: On 9/7/2019 3:00 PM, AK wrote: I recently had my rear derailleur replaced along with new shifters on a 18 speed mountain bike. Shifting in the lower gears is smooth and there is no noise when pedaling. I can shift smoothly into all gears however, there is a "clicking" sound when I am in the upper gears. The bike tech who did the work said he could not find a seven speed shifter and installed an eight speed shifter and told me he would make adjustments so it would work. I have been told this. "It is a problem, but can be fixed by also replacing the freewheel, but I definitely wouldn't be paying for any service from a tech who didn't know this would be a problem." https://imgur.com/a/xF73i91 https://imgur.com/a/5VB6gat The 8 shifter is compatible. Common problems include cable/casing/ferrule issues and rear changer misalignment. It ought to shift well and quietly with all new equipment. This has a new seven chain, new FW and new cable/casing right? Since when is an 8-speed shifter compatible with a 6-speed cassette or freewheel? Cheers Yikes. You're right. I missed that. If it's still a SIX freewheel, there's no way that shifter could work. And by the way, WTF? Six shifters are cheap and plentiful. As are Sevens. Is this what I need? https://www.ebay.com/itm/Sunrace-M53...AAAOSwdA9asB-v I think I can sucessfully install it. I found this video on adjusting the derailleur. https://www.bing.com/videos/search?q...il&FORM=VIREHT Andy p.s. If your local guy sold you an 8 shifter for a 6 system, and then charged you to install it and make it not work, ride over there at your earliest convenience and straighten him out. That process would range from politely pointing at the number "8" on the shifter while loudly counting sprockets, "1, 2, 3, 4, 5, SIX!" up to and including not so politely wrapping your bicycle around his face. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#16
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Problems with upper gears
On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote:
On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote: 6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter. Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index. Cheers |
#17
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Problems with upper gears
On Monday, September 9, 2019 at 7:45:43 PM UTC-5, Sir Ridesalot wrote:
On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote: On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote: 6 speed freewheel and 8 speed shifter/derailleur are never compatible.. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter. Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index. Cheers I talked to the bike shop owner. He will replace the 6 speed freewheel with a new 7 speed at no additional charge. So I guess I will have 3 more gears. :-) Andy 7 speed |
#18
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Problems with upper gears
AK wrote:
On Monday, September 9, 2019 at 7:45:43 PM UTC-5, Sir Ridesalot wrote: On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote: On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote: 6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter. Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index. Cheers I talked to the bike shop owner. He will replace the 6 speed freewheel with a new 7 speed at no additional charge. So I guess I will have 3 more gears. :-) Andy 7 speed And if the text upthread is correct, your shifting will still be screwed up because you will be using an 8 speed shifter with a 7 speed cassette. |
#19
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Problems with upper gears
On 9/9/2019 8:51 PM, AK wrote:
On Monday, September 9, 2019 at 7:45:43 PM UTC-5, Sir Ridesalot wrote: On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote: On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote: 6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter. Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index. Cheers I talked to the bike shop owner. He will replace the 6 speed freewheel with a new 7 speed at no additional charge. So I guess I will have 3 more gears. :-) Andy 7 speed A good start. If it has a Six chain now, get a Seven chain. If they used an 8 chain, get a Seven chain. And test ride it before you complete the conversation. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#20
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Problems with upper gears
On Monday, 9 September 2019 21:59:55 UTC-4, Ralph Barone wrote:
AK wrote: On Monday, September 9, 2019 at 7:45:43 PM UTC-5, Sir Ridesalot wrote: On Monday, 9 September 2019 12:04:07 UTC-4, AK wrote: On Monday, September 9, 2019 at 1:38:53 AM UTC-5, Chalo wrote: 6 speed freewheel and 8 speed shifter/derailleur are never compatible. 7 and 8 speed are compatible with Campagnolo parts, but for the love of God don't do that. 7 speed Shimano pattern freewheel or cassette and 8 speed Shimano pattern shifting are not compatible, but can be coerced to kinda-sorta work poorly together. There's a 0.2mm difference in gear intervals that stacks up to 1.2mm discrepancy across the extremes. It's likely to make noise. Thanks for the info. So what do I need? Andy What you need to shift a SIX speed INDEX cassette or freewheel is a SIX speed INDEX shifter. Was your original shifter (the one that was replaced) a SIX speed INDEX shifter? If it was a FRICTION shifter then the 8-speed shifter should work IF it has a FRICTION MODE on it besides index. Cheers I talked to the bike shop owner. He will replace the 6 speed freewheel with a new 7 speed at no additional charge. So I guess I will have 3 more gears. :-) Andy 7 speed And if the text upthread is correct, your shifting will still be screwed up because you will be using an 8 speed shifter with a 7 speed cassette. Not necessarily. I have a 7-speed cassette that's being shifted with a SRAM 8-speed twist-grip shifter with no problem at all. I did adjust the gears by using the middle cog on the cassette though as that minimizes the differences over the entire range. It works fine though. Cheers |
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