Product Description
Option:
1. Crank arm M4000 only: Left and right crank arm (no bottom brakcet and bolts)
2. Crank arm M4000 + BB-ES300: Come with bottom bracket(68×118mm) and bolts
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Crank arm model: FC-M4000
Compatible: 3x9 Speed
Type: Octalink
Spider/Gear arms: 4 arm
Arm length: 170mm
BCD:96mm
Weight: approx 500g
Axle length of BB-UN/ES (mm)_Threaded (normal): 118mm
Packing: Left and right crank arm , without chainring, without bolts
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Bottom bracket model: BB-ES300
Axle length: 118mm
Type: Octalink
Shell width: 68mm
Shell thread: BC1.37" x 24T
Come with 2 bolts(M15)
Sealed cartridge keeps out dirt and water
Easy installation