Replaced drivetrain but gears still skipping - Project Sports
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Replaced drivetrain but gears still skipping

4 min read

Asked by: Johnny Diaz

Why do my gears keep skipping?

Most of the time, a skipping chain is caused by cable stretch. In the first half dozen rides on a new bike, your shift cables stretch the most. They can also stretch over time as you ride. Hippley explains, “It takes cable tension to open a derailleur, which shifts your chain between gears.

Why is my drivetrain skipping?

Gear indexing issues



One of the most common reasons for a skipping chain is simply a drivetrain that needs a simple indexing adjustment. This is so common that even many brand new bikes can exhibit these symptoms. The good news is that this is probably the simplest to diagnose and fix of all potential issues.

How do you fix a skipping gear?


Quote from video: Now one of the most common causes is simple derailleur adjustment on modern derailers with index shifting. The pulleys in the cage. Here should line up with the cog that the chain is on.

Why does my chain skip when I pedal hard?

The chain could be slipping due to natural weakening of the chain. Over time, the chain will stretch out and a loose chain means more slipping when pedaling hard. The chain could also be slipping if your cogs are word down. The cogs/crank also wear over time and can leave the chain with not much to “grab” on to.

How do you reindex gears?

Pull the shifter cable taut and retighten the retention bolt, taking care not to overtighten it, which can cause the cable to fray. Pedal gently and the chain should return to the smallest cog, then test the indexing by using the shifter to move through the cassette.

How do you adjust the tension on a shifter cable?

Quote from video: So what you want to do is first shift your bike into the smallest gear releasing all of the cable tension. And you'll feel that it's quite loose. Here. Once you've done that.

How do I know if my derailleur is bent?

Quote from video: When we're trying to shift. Down becomes quite erratic or vice-versa. The key is to look at the rear derailleur we can see it's bent slightly inward.

How do you fix ghost pedals?

My hub was ghost pedalling because its was too dry. Just put some grease in the hub/driver. Wake up, ride, have fun, repeat.

Why does my rear cassette slip?

These can occur simultaneously – a dirty chain causes rapid chain wear, a worn out chain causes the cassette to wear out. If you have been riding with a slipping chain for long, you are very likely to have worn out both the chain and the cassette and will have to replace both.

How do I know if my chainring is worn out?

Rough/noisy running is the best way to tell if a chainring needs replacing,” says Chris Mckenney of SRAM. “Unless a chainring is well beyond its service life it is very difficult to see this visually; chainring teeth slowly take on the shape of a shark’s fin in use.

How do I reset my rear derailleur?

Quote from video: Into the groove. Into the clamp and then go ahead and Risa cure the bolt. Now this should be tight enough so that the cable can't pull through.

How do you calibrate Shimano gears?

Quote from video: The derailleur down into the small cog. Once we do that we're going to turn the barrel adjuster all the way in so that we have room to adjust it. After adjusting the cable position at the anchor.

Why are my bike gears not shifting?

Quote from video: Похожие запросы

How do I stop my bike gears from clicking?

A clicking noise often comes from your chain wanting to jump up or down a gear on the rear cassette. This can typically be fixed by adjusting the tension of the cable that runs from your shifter to your rear derailleur.

Why does my rear cassette slip?

These can occur simultaneously – a dirty chain causes rapid chain wear, a worn out chain causes the cassette to wear out. If you have been riding with a slipping chain for long, you are very likely to have worn out both the chain and the cassette and will have to replace both.