My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
Sounds like your derailleur hangar is tweaked a bit. Look and see if the derailleur pulleys and the cog that you are supposed to be in are all lined up.
(Marc Rosenbaum) said:
My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
Thanks
Marc Rosenbaum
Bryan J. Ball Editor/Publisher www.bentrideronline.com
I would get s Shimano xt and get it over with. "Marc Rosenbaum" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
"Marc Rosenbaum" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
Thanks
I had the exact same problem on my SRAM 9.0 rear derailleur. I downloaded the SRAM tech manual off the internet--it even has troubleshoot charts--and quickly fixed the problem. Turns out my chain gap was way off (gap is suppose to be about 6 mm, mine was about 3 times that). So I simply adjusted one hex screw to make the gap correct, and now my V-Rex shifts very smoothly and hasn't skipped ever since (that was 750 miles ago).
I'm not sure where to find the current manual, but the 2001 manual I found was at www.sram24.com/techdoc/english/dealers/technicalmanuals/ pdf/2001/DTM_MTB_MY01_E.PDF
I agree. Most any shifting problem that is related to adjustment can be corrected by the adjusting barrell on the grip shifter itself, on the fly, provided that your high gear (small cog) stop adjustment is correct. A misaligned (bent) derailer hanger can cause the symptoms you describe. But then again there is another murphy that I see from time to time and that is an improperly assembled cassette. Its hard to do but can be done. The last small cog can be put on in such a way (cocked) as to cause the 2nd and 3rd cogs to be loose and the 1st to be crooked. I have have lost count of the number of tune ups I have done in the past 25 years. I can say I have seen more murphys in a year than most see in a lifetime. Deraileur systems and their alignment can be tricky wickets for some and simple for others. As for the poster that commented about XTR..I put a SRAM XO deraileur on my AERO and it works just as well as the XTR did. SRAM's lesser deraileurs 5.0 and 3.0 are not the greatest but set up properly they will shift as well as Shimano deraileurs in the same quality range. However, That said the 5.0 Sram stuff on my 98' BikeE AT still works flawlessly. 25 years ago Campy or SunTour users called it [censored]. -- Jude....///Bacchetta AERO St. Michaels and Tilghman Island.. Maryland Wheel Doctor Cycle and Sports, Inc 1-800-586-6645 "'BentRider" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Sounds like your derailleur hangar is tweaked a bit. Look and see if the derailleur pulleys and the cog that you are supposed to be in are all lined up.
(Marc Rosenbaum) said:
My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
Thanks
Marc Rosenbaum
Bryan J. Ball Editor/Publisher www.bentrideronline.com
Thanks very much for your responses to my derailleur post. I hung the bike yesterday from the garage ceiling and it looks as though the tension adjustment may have done the trick. I'm not certain why improper cable tension would allow the derailleur to shift well in some gears and poorly in others, but if it works, great. I'll road test today.
I've only ridden 15 miles (one ride) on this new bike but I can see that I will probably want to change the gearing for the hilly place I live. I have always preferred a tight cluster and wide range chainrings. The bike came with a 52 42 30 Truvativ Elita and an Ultegra front derailleur. I have a 12-27 rear. I'm thinking I'd like to change the small front ring to 24 if possible (I have a couple) or 26 if that won't work. Then get a custom cassette such as 11 12 13 14 16 18 20 23 27 so I can have higher top end (I was in top gear 52-12 on my maiden voyage on a nearly flat road) and get the granny I need around here.
Will the Ultegra front work for this? If not, what might you suggest?
"Jude T. McGloin" <[email hidden]> wrote in message news:<[email hidden]>...
Quoted message said:
Deraileur systems and their alignment can be tricky wickets for some and simple for others. As for the poster that commented about XTR..I put a SRAM XO deraileur on my AERO and it works just as well as the XTR did. SRAM's lesser deraileurs 5.0 and 3.0 are not the greatest but set up properly they will shift as well as Shimano deraileurs in the same quality range. However, That said the 5.0 Sram stuff on my 98' BikeE AT still works flawlessly. 25 years ago Campy or SunTour users called it [censored]. -- Jude....///Bacchetta AERO St. Michaels and Tilghman Island.. Maryland Wheel Doctor Cycle and Sports, Inc 1-800-586-6645
Just confirming that the cable tension adjuster adjustment fixed the problem - no problems on my road test today.
Thanks
"Jude T. McGloin" <[email hidden]> wrote in message news:<[email hidden]>...
Quoted message said:
I agree. Most any shifting problem that is related to adjustment can be corrected by the adjusting barrell on the grip shifter itself, on the fly, provided that your high gear (small cog) stop adjustment is correct. A misaligned (bent) derailer hanger can cause the symptoms you describe. But then again there is another murphy that I see from time to time and that is an improperly assembled cassette. Its hard to do but can be done. The last small cog can be put on in such a way (cocked) as to cause the 2nd and 3rd cogs to be loose and the 1st to be crooked. I have have lost count of the number of tune ups I have done in the past 25 years. I can say I have seen more murphys in a year than most see in a lifetime. Deraileur systems and their alignment can be tricky wickets for some and simple for others. As for the poster that commented about XTR..I put a SRAM XO deraileur on my AERO and it works just as well as the XTR did. SRAM's lesser deraileurs 5.0 and 3.0 are not the greatest but set up properly they will shift as well as Shimano deraileurs in the same quality range. However, That said the 5.0 Sram stuff on my 98' BikeE AT still works flawlessly. 25 years ago Campy or SunTour users called it [censored]. -- Jude....///Bacchetta AERO St. Michaels and Tilghman Island.. Maryland Wheel Doctor Cycle and Sports, Inc 1-800-586-6645 "'BentRider" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Sounds like your derailleur hangar is tweaked a bit. Look and see if the derailleur pulleys and the cog that you are supposed to be in are all lined up.
(Marc Rosenbaum) said:
My brand new Volae Club LX has a SRAM X.9 rear derailleur. It shists fine in the largest 3 cogs, and in the smallest cog (12-27 Ultegra cassette. IN the mid-range, it grinds and sounds badly misadjusted, and skips, and occasionally changes gears all by itself (I have an automatic transmission!) The only pertinent adjustment that I see is the cable tension on the SRAM shifter. But if the cable tension is off, why would it shift fine in some of the gears?
Any thoughts on what to look for would be approeciated. The derailleur appears to be straight (not a bent hanger) as far as I can see.
Thanks
Marc Rosenbaum
Bryan J. Ball Editor/Publisher www.bentrideronline.com
