Alivio RD-M3100 Rear Derailleur
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Product variants
Product information
- Last confirmed discount
- First published
The Shimano Alivio RD-M3100 rear derailleur is listed for a nine-speed drivetrain. The supplied specifications describe the SGS long-cage version, with a 45-tooth total capacity and a 36-tooth maximum low sprocket.
Use those values as separate checks: maximum sprocket size and total drivetrain capacity are different requirements. Match the exact model to your shifter, chainring setup and cassette, and confirm the attachment used by your frame. Similar-looking Shimano derailleurs from other speed families are not automatically equivalent replacements. Ask the retailer to confirm the selected model code if the photographs or options show more than one version.
Shimano technical documents: search for RD-M3100-SGS.
Choosing derailleurs
- Match the exact model to the shifter and drivetrain compatibility information.
- Check cage version, cassette range and mounting requirements.
Features
Low-profile design
Total capacity: 45T
Max. low sprocket: 36T
Adjustment barrel
SPECS:
CAGE LENGTH SGS/Long
TOTAL CAPACITY 45
MAX FRONT DIFFERENCE 22
CABLE ADJUSTER X
COLOR SERIES COLOR
MOUNT Direct attachment (conventional)
NUMBER OF PULLEY TEETH 11
SERIES Alivio
GENERATION M3100
MAX LOW SPROCKET 36
MIN LOW SPROCKET 32
TOP NORMAL SPRING TYPE Shimano Shadow RD
REAR SPEEDS 9
WEIGHT 276 grams
