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Bike Derailleurs Main
Bike front derailleurs, bike rear derailleurs and bike derailleur parts for sale at great prices. Buy bike derailleur gears and more here. Front and Back Bike Derailleurs
Rear Derailleurs 101
Learn all about rear derailleurs so you can pick the right derailleur for your bike
Front Derailleurs
What is a front derailleur and how do I choose the right one? Read here to find out everything you need to know about front derailleurs
Bike Gear Education Main
Learn about the bike gear that we sell.
Bike Tools 101
Learn about the different tools used for bicycle maintenance and repair with our complete guide to bike tools
Bike Repair Stands Guide
Learn about bike repair stand and how to use them to repair your bicycle
Bike Chains 101
Learn how to choose the right bike chain for your bicycle
Adjusting a Rear Derailleur
Learn how to adjust a rear derailleur on your mountain or road bike
Adjusting a Front Derailleur
Learn how to adjust the front derailleur on your road or mountain bike
Drivetrains 101
Learn about bicycle drivetrains, the components that comprise them and how to choose the right drivetrain parts for your bike
Compact vs. Standard Crankset for Bicycles
Learn the differences between compact and standard cranksets in this L9 Sports resource guide that will help cyclists make the right choice for how they ride.Road Bike Gear Ratios Chart for Cranksets.
Shifters 101
Learn about the different types of bicycle shifters and select the right shifters for your bike
Retail Services
L9 invites you to our full-service ski, snowboard, and bike shops at all four locations. Find unbeatable prices on top-notch services for all your outdoor needs.
How to Clean a Bicycle Cassette
Learn how to clean your bicycle cassette
Remove and Install Chains
Learn how to remove and install a bike chain on your bicycle
wolf-tooth-components
Unleash your bike's potential with Wolf Tooth Components' precision-engineered cycling accessories. Upgrade your ride today.

About at L9

Bike Derailleur Components at Level Nine

Whether you are building your own bike to your personal specifications or you are needing to replace a bike front derailleur or a bike rear derailleur because of wear and tear, Level Nine has the bike derailleur parts needed to create a precision shifting experience. We have a fantastic selection of road bike derailleurs and mountain bike derailleurs from which to choose in several sizes — including short, medium and long.

Road Bike Derailleurs and Mountain Bike Derailleurs

Your bike has both front and rear derailleurs, which are the devices that move your bike’s chain between the cogs. Derailleurs determine your ratios: the highest ratio (when your bicycle goes the fastest) occurs when the chain is on the biggest sprocket in the front and the smallest in the back. The lowest ratio (when the bike is easiest to pedal yet is very slow, as in up hills) occurs when the chain is on the smallest sprocket in the front and the biggest in the back.

Level Nine has Bike Derailleur Parts

Unsure what size of bike front derailleur or bike rear derailleur to buy? Level Nine is here to help you determine which size is best — as well as the right brand and style that will help you get the most out of your road time. At Level Nine, we carry a wide range of model year options, derailleur sizes and bike derailleur parts from trusted bike component manufacturers, like SRAM derailleurs. Contact us to learn more about the items you need — we’re more than happy to help.

Access Adventure with Level Nine

Level Nine is a store for everyone who loves outdoor adventure sports; we share this love with our customers and we live to share our knowledge — and our low prices! While you’re here, be sure to check out the other items we have in stock, like bike accessories and safety gear, bike apparel, maintenance products and bike frames. Access adventure with Level Nine!

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