What is the impact of changing to a smaller chainring?

Asked by: Sparkle Tyger

Is a smaller chainring better?

The size of a chainring (often expressed in terms of the amount of teeth on it, e.g. a 53t ring) plays a direct role in your bike’s gearing, with bigger rings meaning a higher (harder to push) gear and smaller rings a lower (easier to push) gear.

What does a smaller chain ring do?

The larger chainring gives you bigger, harder to turn gears that move you further per pedal revolution – so it’s suitable for higher speeds – while the smaller chainring gives you gears that are easier to turn but move you a shorter distance per pedal revolution – so it’s suitable for lower speeds, including riding

Are smaller chainrings less efficient?

Bigger chainrings and cassette cogs run more efficiently than smaller ones but extreme cross-chaining can cancel out those efficiency gains.

Can I fit a smaller chainring?

Yes, you can. This will make it suitable for diverse terrains and make pedaling easier. Putting a smaller chainring on your road bike isn’t a problem but you may have to change your crankset. Most road bikes come with double chainrings and can either be standard or a compact.

How does chainring size affect speed?

The smaller the chainring, the easier the lowest gear for climbing; the bigger the chainring, the faster you can go in the highest gear. You can calculate the gearing ratio by dividing the teeth of the chainring with the teeth of the cog on the cassette.

How much difference does 2 teeth on chainring make?

In this size range two teeth in the front is about the same as one tooth in the back. It’s a very small change but sometimes it’s just that small difference that tips the scale in your favour.

How big should my chainring be?

Broadly speaking, if you ride a 29er and/or ride in steep mountains go for a chainring with 32T or fewer (the 11 speed Sram XX system goes down to 28T if your bike has the XX drivetrain). If you ride 26″ or 27.5″ wheels and/or ride in less mountainous terrain then go for a 34T or possibly even 36T chainring.

What size chainring do pros use?

Pros often use a 55×11-tooth high gear for time trials. On flat or rolling stages they might have 53/39T chainrings with an 11-21T cassette. In moderate mountains they switch to a large cog of 23T or 25T.

Does a bigger chain ring make you go faster?

Will you go faster if you replace the stock chainring on your bike, like the 50t one shown here, with a larger chainring, like the 56t behind it? 99% of the time the answer is no, you will likely go slower.

What is the difference between 30t and 32t chainring?

On a mountain bike, the small change of swapping from a 32t to a 30t chainring gives you gearing that is 6.7% easier. For gravel, going from a 42t to a 40t provides 5% easier gearing.

What is the best chainring combination?

Standard Setup. Currently, the most common gearing setup on new road bikes is a 50/34 chainset with an 11-28 cassette. This means that the big and small chainring have 50 and 34 teeth, respectively, and the cassette’s smallest cog has 11 teeth and its largest cog has 28 teeth.

What chainring should I use?

As a result, and as a general rule, you should use your big chainring in combination with the smaller sprockets on your cassette, and the small chainring with the bigger sprockets.

What is the best gear ratio for speed?

If you’re just starting out on your adventure on a single speed or fixed gear bike, a gear ratio of around 2.7-2.8 will be ideal.

Does higher gear mean faster bike?

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What size chainring is best for climbing?

Mountain bike chainrings are available in smaller sizes all the way down to 26t, though I’d recommend most riders try a 30t or 28t first to experience how much easier it is to climb. For gravel bikes, I wouldn’t recommend going any smaller than 38t to maintain top-end speed on downhills.

What size chainring do pros use?

Pros often use a 55×11-tooth high gear for time trials. On flat or rolling stages they might have 53/39T chainrings with an 11-21T cassette. In moderate mountains they switch to a large cog of 23T or 25T.

How big should my chainring be?

Broadly speaking, if you ride a 29er and/or ride in steep mountains go for a chainring with 32T or fewer (the 11 speed Sram XX system goes down to 28T if your bike has the XX drivetrain). If you ride 26″ or 27.5″ wheels and/or ride in less mountainous terrain then go for a 34T or possibly even 36T chainring.

Does a bigger chain ring make you go faster?

Will you go faster if you replace the stock chainring on your bike, like the 50t one shown here, with a larger chainring, like the 56t behind it? 99% of the time the answer is no, you will likely go slower.

Which gear is fastest on a bike?

High Gear = Hard = Good for Descending: The “highest” gear on your bike is the largest chain ring in the front and the smallest cog on your cassette (rear gears). In this position, the pedaling will be the hardest and you’ll be able to accelerate while traveling downhill.

What gears make a bike faster?

A lower, easier gear, with the smaller chain ring up front and a larger cog in the back, lets you accelerate faster. This helps you get started from a stop, or when you’re climbing a steep hill.