Description
Shimano rear derailleur Acera M3020
Very unassuming and cheap sleeper rear derailer by Shimano but don’t let that fool you. You can officially use it with a cassette that has a cog as big as 40t. Like this cassette here. None of the other cheapy Shimano rear derailleurs can officially go as low. (The new Essa rear derailleur can go as low as 45t, but this one will work better with friction shifters).
CAGE LENGTH – SGS/Long
TOTAL CAPACITY – 45T
MAX FRONT DIFFERENCE – 20T
MOUNT – Direct attachment (conventional)
NUMBER OF PULLEY TEETH – 11T
SERIES – Acera
GENERATION – M3000
MAX LOW SPROCKET – 40T
MIN LOW SPROCKET – 30T
REAR SPEEDS – 7/8
TOP NORMAL SPRING TYPE – Double servo
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