the derailleur on my bike is misaligned and pulls the chain off the gear when i shift to 7th (lowest gear).
how to fix?
the derailleur on my bike is misaligned and pulls the chain off the gear when i shift to 7th (lowest gear). how to fix?
the derailleur on my bike is misaligned and pulls the chain off the gear when i shift to 7th (lowest gear).
how to fix?
God I hate working on bikes.
you probably just need to adjust the limits. there are two little screws on the derailleur, one adjusts the limit, the other adjusts tension. look on youtube for better instructions.
I haven’t ridden my mtb in two years because I refuse to work on it any more, so double check what I’ve said
seemed to work, thanks.
>God I hate working on bikes
I feel ya
whenever I see those posts with a bunch of tools tied to 'em with steel cable I sigh and shake my head and the many hours and poor bastards who aren't just walking
There are two limit screws, one high one low. He needs to adjust the high screw, because that's what the pic shows. Pic is high gear
>God I hate working on bikes.
why
maybe because you have the cheapest unservicable heap of garbage from walmart
>poor bastards who aren't just walking
cycling is way better than just walking
The >>>/n/ board talks about bikes, but basically this.
Trying to get technical info out of /n/ is like trying to turn a bolt with a stick of butter.
Adjust it.
Im gonna try for you op
This is probably a slightly bent derailleur hanger, if you shift into the highest gear, and get behind your bike and look at the gears like ur bike is, are the gears of the derailleur in an exact straight up and down line, or does the derailleur kinda tilt in towards the wheel? It looks like it might tilt in a bit. If this is true, adjusting your limit screws may help but is NOT your issue. You gotta get that derailleue back straight up and down. A bike shop will have a tool for this, its like a long bar with the same threads, they undo your derailleur, screw that in and you massage it back.
Then, with a straight derailleur, you can go for adjusting your shifter. Shift into highest gear (cable loosest) and its importantto make sure cable tension is not pulling the derailleur in at all. Its just chillen. Now use your limit screw to set up that derailleur pulleys exactly under the smallest cog.
When those three line up, perfect. Now go for cable tension on the shifter. Tension that so one shift moves exactly from the lowest cog to exactly the next one up. Perfect solid shift back and forth. When that spacing is perfect, shift it up to the biggest cog and use the limit screw to make sure that when you shift as hard as you can you cant bring that chain off the inside.
No cable tension, bottom limit screw, shifter tension, top limit.
If one end or the other isnt happy, your hanger is still bent. But 97 percent chance this isnt solveable with shifter tension and limit screws so thats why its frustrating for ya.
Frick off about the spacing, i was a bike mech far before reddit.
I'm trying to solve a problem of my mtb not shifting into the largest rear sprocket. I've gone through all the adjustments and it seems like I just can't get enough tension on the cable to get that last shift. I got this bike used from a recycling place and noticed it has derailer hardware from a different brand ("enzo") than the bike itself (cheap hardware store). Is it possible somebody swapped this hardware in and it doesn't fit somehow? Or are these standardized? The only other thing I can think is maybe adding a second barrel adjuster to get more tension. Anyway if you have any thoughts on this I'd appreciate your input
What kind of bike do you have?
Any chance you can post a picture of the shifter and derailleur?
If you have the bike where you can spin the pedals with the rear wheel off the ground, on a stand, upside down, or a rope around a tree branch to the seat, and you have it in the lowest gear the bike will shift into on its own, then you pull on the cable with your finger somewhere its exposed, what happens? Can you get it to move into place by adding that tension with your finger?
If yes, possibility is shifter doesnt have enough range.
If no, make sure the limit screw isnt blocking it and try again.
Theres not really derailleurs that dont have the range for 7 speeds. Itll go where the tension tells it.
However, ive already told you your issue. Your derailleur hanger is bent. The bottom pulley is slingtly in towards the wheel, not straight up and down. I nearly guarantee if you take a pic with the derailleur in that position, the cog and derailleur pulleys will not be in a straight line. The derailleur bent in will have the top pulley slightly outwards, this is largely not an issue till you get to the biggest or smallest cog. You usually can nearly adjust this out but if it shifts great in all other gears, its not your derailleur.
I bet its been fricked with so you need to straighten the derailleur hanger, then adjust cable tension
Park tool on YouTube, Google is your friend.