I'm attempting to figure out why my right shifter - rear derailer will only shift on the four outer most cogs. I cannot shift to the four inner most cogs.
I bought a used mountain bike this fall. It's equipped with Shimano Deore front and rear derailleurs. The rear derailleur (8 speed) only shifts between the highest four cogs. It works accurately and smoothly on those gears. However, the shift lever does not seem to to grab and connect the get to the lowest or inner most four cogs. I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
P Neuberger said the following on 14/11/2007 05:23:
Quoted message said:
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
I'm attempting to figure out why my right shifter - rear derailer will only shift on the four outer most cogs. I cannot shift to the four inner most cogs.
I bought a used mountain bike this fall. It's equipped with Shimano Deore front and rear derailleurs. The rear derailleur (8 speed) only shifts between the highest four cogs. It works accurately and smoothly on those gears. However, the shift lever does not seem to to grab and connect the get to the lowest or inner most four cogs. I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
Any advice?
Could be the limit stop screw like you mentioned. Figure out which screw that is and loosen it up a bit.
"Jim" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
P Neuberger said:
I'm attempting to figure out why my right shifter - rear derailer will only shift on the four outer most cogs. I cannot shift to the four inner most cogs.
I bought a used mountain bike this fall. It's equipped with Shimano Deore front and rear derailleurs. The rear derailleur (8 speed) only shifts between the highest four cogs. It works accurately and smoothly on those gears. However, the shift lever does not seem to to grab and connect the get to the lowest or inner most four cogs. I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
Any advice?
Could be the limit stop screw like you mentioned. Figure out which screw that is and loosen it up a bit.
"P Neuberger" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
(stuff deleted) I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
Any advice?
I took a cursory look at this problem yesterday. I can change the cable adjustment to make the shifter work on the high gears or adjust cable back to hot the low gears. The rear derailleur just doesn't have the range to hit all eight gears. Changing the limit screw adjusters does not seem to help this. Could the problem be in the shift levers?
"P Neuberger" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
(stuff deleted) I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
Any advice?
I took a cursory look at this problem yesterday. I can change the cable adjustment to make the shifter work on the high gears or adjust cable back to hot the low gears. The rear derailleur just doesn't have the range to hit all eight gears. Changing the limit screw adjusters does not seem to help this. Could the problem be in the shift levers?
So it shifts between the four smaller cogs (the outer ones) but will not get up to the larger ones?
Try loosening the cable all the way (by shifting). It should be on the smallest cog. Then, with the rear tire supported and with you pedaling by hand, see if you can use your hand to move the derailluer the full range. What I mean by that is, shift it using your hand instead of the shifter/cable. That should tell you if it's the shifter or the derailleur
Is it one of those "rapid rise" (or whatever they're called) derailleurs where it wants to shift to the larger cogs when the cable is loosened?
"Jim" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
P Neuberger said:
"P Neuberger" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
(stuff deleted) I assume that it simply needs to be readjusted. It seems like this is something that would require a change to the limit stop screws. I'll try to dig into this over the weekend.
I know I could take it to a shop but this is not really my "go to" bike. I bought it to learn how to do better maintenance without screwing up my main ride.
Any advice?
I took a cursory look at this problem yesterday. I can change the cable adjustment to make the shifter work on the high gears or adjust cable back to hot the low gears. The rear derailleur just doesn't have the range to hit all eight gears. Changing the limit screw adjusters does not seem to help this. Could the problem be in the shift levers?
So it shifts between the four smaller cogs (the outer ones) but will not get up to the larger ones?
Try loosening the cable all the way (by shifting). It should be on the smallest cog. Then, with the rear tire supported and with you pedaling by hand, see if you can use your hand to move the derailluer the full range. What I mean by that is, shift it using your hand instead of the shifter/cable. That should tell you if it's the shifter or the derailleur
Is it one of those "rapid rise" (or whatever they're called) derailleurs where it wants to shift to the larger cogs when the cable is loosened?
On my rear derailer, loose goes to the smallest gear.
Good advice Jim.
It's the shifter. If I mess with the shifter enough I can actually get the shifter to work with all the gears. It seems like the shifter is worn out. I'm looking into that now. I will probably take the shifter apart to look at it tomorrow.
"Jim" <[email hidden]> wrote in message news:[email hidden]...
Quoted message said:
P Neuberger said:
"P Neuberger" <[email hidden]> wrote in message news:[email hidden]...
> (stuff deleted) I assume that it simply needs to be readjusted. It seems > like this is something that would require a change to the limit stop > screws. I'll try to dig into this over the weekend. > > I know I could take it to a shop but this is not really my "go to" bike. > I bought it to learn how to do better maintenance without screwing up my > main ride. > > Any advice? > > > I took a cursory look at this problem yesterday. I can change the cable adjustment to make the shifter work on the high gears or adjust cable back to hot the low gears. The rear derailleur just doesn't have the range to hit all eight gears. Changing the limit screw adjusters does not seem to help this. Could the problem be in the shift levers?
So it shifts between the four smaller cogs (the outer ones) but will not get up to the larger ones?
Try loosening the cable all the way (by shifting). It should be on the smallest cog. Then, with the rear tire supported and with you pedaling by hand, see if you can use your hand to move the derailluer the full range. What I mean by that is, shift it using your hand instead of the shifter/cable. That should tell you if it's the shifter or the derailleur
Is it one of those "rapid rise" (or whatever they're called) derailleurs where it wants to shift to the larger cogs when the cable is loosened?
On my rear derailer, loose goes to the smallest gear.
Good advice Jim.
It's the shifter. If I mess with the shifter enough I can actually get the shifter to work with all the gears. It seems like the shifter is worn out. I'm looking into that now. I will probably take the shifter apart to look at it tomorrow.
I had a problem with the shifter on my son's bike. I acted as if it was busted. I took it apart and it had all kinds of dirt, dust and [censored] gumming everything up. A bunch of WD-40 and some lightweight oil had it working in about an hour.
Just be careful and don't loose the little screws!
>> (stuff deleted) > I took a cursory look at this problem yesterday. I can change the cable > adjustment to make the shifter work on the high gears or adjust cable > back to hot the low gears. The rear derailleur just doesn't have the > range to hit all eight gears. Changing the limit screw adjusters does > not seem to help this. > Could the problem be in the shift levers? > > > So it shifts between the four smaller cogs (the outer ones) but will not get up to the larger ones?
Try loosening the cable all the way (by shifting). It should be on the smallest cog. Then, with the rear tire supported and with you pedaling by hand, see if you can use your hand to move the derailluer the full range. What I mean by that is, shift it using your hand instead of the shifter/cable. That should tell you if it's the shifter or the derailleur
Is it one of those "rapid rise" (or whatever they're called) derailleurs where it wants to shift to the larger cogs when the cable is loosened?
On my rear derailer, loose goes to the smallest gear.
Good advice Jim.
It's the shifter. If I mess with the shifter enough I can actually get the shifter to work with all the gears. It seems like the shifter is worn out. I'm looking into that now. I will probably take the shifter apart to look at it tomorrow.
I had a problem with the shifter on my son's bike. I acted as if it was busted. I took it apart and it had all kinds of dirt, dust and [censored] gumming everything up. A bunch of WD-40 and some lightweight oil had it working in about an hour.
Just be careful and don't loose the little screws!
I was a bad shifter. I replaced it. All is well. Thanks again for the help Jim.
