Rear derailleurs
Ryden mechanical rear derailleurs from 7/8-speed to 12-speed: short, medium and long cages for city, hybrid, road and mountain bikes, an 11-speed TrailLock clutch version, a 1×12 MTB clutch derailleur for 50T and 52T cassettes, and a high-capacity long-cage touring derailleur.
Choosing a rear derailleur
Match your drivetrain speed
Choose the derailleur for your number of rear sprockets: 7/8-, 9-, 10-, 11- or 12-speed. Then match the shifter too, because derailleurs and shifters of the same speed don’t always pull the same amount of cable.
Check your largest cog
Every cage has a maximum rear sprocket, from 28T on the shortest cages to 52T on the 12-speed MTB derailleur. Your cassette’s largest cog must be within it.
Check the total capacity
Capacity = (largest chainring − smallest chainring) + (largest cog − smallest cog). A 42/32/22T triple with an 11–34T cassette needs 20 + 23 = 43T. Longer cages absorb more chain, so 2× and 3× drivetrains usually need a long cage.
Check the hanger first
A bent derailleur hanger is one of the most common causes of poor rear shifting. Check its alignment before replacing a derailleur, and before fine-tuning a new one.
Frequently asked questions
Which rear derailleur do I need?+
Start with your drivetrain speed, then your cassette’s largest cog and the total capacity of your chainrings and cassette. Road bikes usually suit a short or medium cage, 1× mountain bikes a long cage, and 2× or 3× touring bikes the high-capacity Long-Cage Touring Derailleur.
What is total capacity?+
The amount of chain a derailleur can take up: (largest chainring − smallest chainring) + (largest cog − smallest cog). Your drivetrain’s figure must be within the derailleur’s capacity, as well as its largest cog within the maximum sprocket.
Short, medium or long cage?+
A short cage is lighter with more ground clearance, for close-ratio cassettes and 1× setups. Medium suits moderate ranges and many 2× setups. A long cage takes the largest cogs and the most capacity, for wide-range 1×, 2× and 3× drivetrains.
Do I need a clutch derailleur?+
For rough off-road riding, a clutch reduces chain slap and helps keep the chain on. Ryden’s clutch options are the 11-speed MTB TrailLock version and the 12-speed MTB derailleur. City, road and touring bikes generally don’t need one.
What warranty do Ryden rear derailleurs have?+
A 1-year limited warranty against manufacturing defects, as for all Ryden drivetrain components. Wear from use, such as worn pulley wheels, is not covered.
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