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Questions and answers about sports

Tiagra upshifting jumping 3-4 gears in middle of cassette

5 min read

Asked by: Donna Reynolds

Why is my bike changing gears by itself?

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.

How do Tiagra shifters work?

The shifters have two levers – a big one, and a smaller little one behind it. The left shifter controls the front derailleur, and thus the chainrings. From Tiagra onwards, to change into a larger chainring, adding more resistance, you press in with the biggest lever.

How do I fix my bike not shifting gears?


Quote from video: If they can't push the chain over of the smallest chainring. The most likely causes are that the limiting screw is preventing the case moving over farther in case.

Can you change bike gears when stationary?

The changing of gears itself is unlikely to cause any damage, you’re just going to move the derailleurs back and forth until the chain prevents them moving further.

How do you stop a ghost from shifting?

Quote from video: Make sure your derailleur is vertically in line with the cassette pulley wheels and parallel to the wheel. And bike frame. If this is not the case and this is out of alignment.

Do Shimano shifters wear out?

Yes, they do wear out -some faster than others- but you should be fine sticking with what you have.

Is Shimano Tiagra good enough?

Conclusion. Tiagra is a really impressive groupset. It does everything you want from a mid-level road bike with only a few minor quibbles. The biggest decision is whether you’re really fussed about having the 11-speed of Shimano’s more expensive 105.

Are Shimano Tiagra any good?

Tiagra 4700 is the latest groupset from Shimano to get a makeover, and in doing so it has made Tiagra the best it’s ever been. On its own, it’s not quite as good as the more expensive 105, but if you’re buying a new bike with Tiagra 4700, you won’t be disappointed. Tiagra is Shimano’s fourth-tier groupset.

What level is Shimano Tiagra?

Shimano’s Tiagra is an entry level, 10-speed groupset often spec’d on many sub-£1000 value and city bikes for its durable and reliable properties.

How do you fix a Shimano shifter?

Quote from video: So we can usually hit it with wd-40. Break it down let it dry up a little bit and then squirt some maybe some lithium grease back inside. There.

How do I calibrate my bike gears?

Quote from video: Here is your front derailleur at the front of the bike here this one has two chain rings therefore. You have two gears.

How do you adjust a Shimano rear derailleur?

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.

What is a ghost shift?

Also known as the “midnight shift” or “third shift”, contractors hired by the brands will essentially make more products than they’re supposed to even after “official production” has finished, running the production machine off the books by having factory workers come back for an extra undocumented out of hours shift.

What is Ghost shifting on a bike?

True “ghost shifting” is when the bike shifts perfectly in the repair stand (thus eliminating bent der hangs, stretched cables, etc etc) but shifts on its own while under riding loads.

How do you shift gears without a clutch?

Quote from video: Without the clutch you're going to simply ease. Off the gas. Pull the gear selector into neutral. And then give it a little bit of gas you're going to want to sort of blip the throttle.

Why is my motorcycle jerky?

Motorcycles jerk because power from the engine reaches the rear tire inconsistently, creating moments where engine power to the rear wheel is cut off in some fashion.

Why does my bike chain slip when I pedal hard?

These include worn out or misaligned derailleur pulleys, old or malfunctioning shifters throwing off the indexing in some gears, or broken/bent teeth on one or more cassette cogs. Build up of dirt and grime on drivetrain components will also cause shifting issues, including skipping chains.

Why is my bike chain skipping?

Most of the time, skipping or slipping bike chain can be caused by a very stretched chain or worn cogs teeth, after a long riding and hard use, the chain will get stretched, and start causing damage for both cassette and chainrings teeth, at a certain point the chain will lose its good mechanical contact causing the

What is shifting under load?

The shifting under load is a load for which neither the chain or the gear is designed to resist: by doing that you are inducing microscopical damages to the metal, accelerating the wear of components.

Should you pedal while changing gears?

While you are shifting gears, you must keep pedaling in order for the chain to move from one gear to the next. When you’re in a particular gear and pedaling, the chain is pulling on the teeth of that gear.

How do you shift gears without a clutch?

Quote from video: Without the clutch you're going to simply ease. Off the gas. Pull the gear selector into neutral. And then give it a little bit of gas you're going to want to sort of blip the throttle.