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Chains & Chain Guides

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Step 2: Adjust your inseam

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You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
Inseam typically falls with 5cm of the average.

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How to Shop for Chains & Chain Guides

When shopping for bike chains and chain guides, the most important starting point is compatibility with your drivetrain. Chains are speed-specific, meaning an 11-speed chain is designed to work with an 11-speed cassette and shifters, so always match your chain to your existing setup. Chain guides are worth considering if you ride off-road or in aggressive terrain, as they help prevent the chain from dropping during technical sections. For everyday riders and commuters, a straightforward replacement chain is usually all that's needed to restore smooth, efficient pedalling. Whether you're doing routine maintenance or upgrading your drivetrain for better performance, getting the right chain makes a noticeable difference. Explore the different types of bike chains and chain guides below to find the right fit for your riding needs.

Commonly Asked Questions about Chains & Chain Guides

How do I know which chain is compatible with my bike?

Chains are speed-specific, so you need to match the chain to the number of speeds in your drivetrain. For example, an 11-speed chain is designed to work with an 11-speed cassette and shifters. Always check your existing drivetrain setup before purchasing, and if you are unsure, bring your bike into a 99 Bikes store for advice.

How do I know when my chain needs to be replaced?

Chains wear over time through a process called chain stretch, where the internal links gradually elongate and cause poor shifting and accelerated wear on your cassette and chainrings. A chain wear indicator tool is the most reliable way to check whether your chain needs replacing. Replacing a worn chain promptly is one of the most cost-effective ways to extend the life of your entire drivetrain.

Do I need a chain guide, and what does it do?

A chain guide is a protective device that keeps your chain on the chainring during aggressive or technical riding, preventing it from dropping. They are most commonly used on mountain bikes, particularly those ridden on rough or steep terrain where chain drops are more likely. If you ride on smooth roads or casual trails, a chain guide is generally not necessary, but for off-road and enduro-style riding it can save significant frustration.

Are there different quality levels of chains, and is it worth spending more?

Yes, chains are generally available across entry-level, mid-range, and performance tiers. Higher-end chains are typically lighter, more durable, and engineered for smoother, more precise shifting, which can make a noticeable difference for performance riders. For everyday commuters or casual riders, a mid-range chain will usually provide excellent value and longevity without the premium price tag. Better chains also tend to feature improved surface treatments or coatings that resist corrosion and reduce friction, helping them stay cleaner and last longer between replacements. Ultimately, matching the chain quality to your drivetrain level makes the most sense, pairing a budget chain with a high-end groupset can compromise shifting performance, while spending top dollar on a chain for a basic drivetrain offers little practical benefit.

Related Categories

Pedals & Cleats

Clip-in, flat, MTB, road or BMX. Explore our full range of bike pedals to find the right fit for your riding style, bike setup, and experience level.

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Chainrings, Bashplates & Guides

Chainrings for Road, MTB, BMX and eBike riders. Whether you're replacing a worn ring or upgrading your gearing, browse options built to match your drivetrain.

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Chains & Parts

Bike chains built for precise drivetrain compatibility. Browse replacements and performance upgrades to keep your ride shifting smoothly and running at its best.

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Chains & Chain Links

Upgrade your drivetrain with the right bicycle chain or chain links. Shop a solid range suited to all riding styles, speeds, and budgets.

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Cassettes, Freewheels & Drivers

Cassettes and freewheels for every setup, from 6-speed to 13-speed. Browse road, MTB, and single-speed options to match your drivetrain and ride perfectly.

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Derailleurs

Derailleurs for MTB, Road, and everyday riding. Browse rear, front, and jockey wheels to replace, upgrade, or maintain your drivetrain shifting system.

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Cables & Bearings

99 Bikes carries a range of replacement brake cables and gear cables to ensure your bike is always shifting and braking like new. Shop online and in-store for our range of cables and don't forget to check with our mechanics if you need any repair work done on your bicycle.

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Shifters

99 Bikes has a wide range of shifters to match your front and rear derailleurs to fit every bike. When it comes time to replace a damaged or worn out shifters shop in-store or online for the best range and best prices in New Zealand. 99 Bikes has your road, mountain and commuter bike covered with a range of shifters to match your front derailleurs and rear derailleurs to keep your bike running smoother for longer.

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Bottom Brackets

Bottom brackets built for smooth, silent pedalling. Browse threaded, press-fit and cartridge options to match your frame standard and crankset perfectly.

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Cranksets & Cranks

Cranksets and cranks for road, MTB, BMX, and eBike builds. Upgrade your drivetrain or replace a worn crank with the right fit for your riding style.

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Bearings

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Derailleur Hangers

Derailleur hangers are frame-specific, so getting the right fit matters. Browse replacement hangers to protect your drivetrain, repair crash damage, or keep a spare ready for the road.

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Chains & Chain Guides

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Step 1: Measure your height

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Step 2: Adjust your inseam

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How to Shop for Chains & Chain Guides

Commonly Asked Questions about Chains & Chain Guides

Related Categories

Pedals & Cleats

Chainrings, Bashplates & Guides

Chains & Parts

Chains & Chain Links

Cassettes, Freewheels & Drivers

Derailleurs

Cables & Bearings

Shifters

Bottom Brackets

Cranksets & Cranks

Bearings

Derailleur Hangers

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Chains & Chain Guides

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Scroll to top

Find Your Size

Step 1: Measure your height

Find Your Size

Step 2: Adjust your inseam

Find Your Size

Your results

Find Your Size

We have saved your measurements.

How to Shop for Chains & Chain Guides

Commonly Asked Questions about Chains & Chain Guides

Related Categories

Pedals & Cleats

Chainrings, Bashplates & Guides

Chains & Parts

Chains & Chain Links

Cassettes, Freewheels & Drivers

Derailleurs

Cables & Bearings

Shifters

Bottom Brackets

Cranksets & Cranks

Bearings

Derailleur Hangers

Most Popular Brands

5% BEST PRICE GUARANTEE

CLICK AND COLLECT

CLUB 99 MEMBERSHIP

FREE SHIPPING OVER $149*

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