ZEE_M640_m

Crankset (1x10-speed)

FC-M640

ZEE_M640_m

FC-M640

Crankset (1x10-speed)

  • FEATURE
    • FC-M640 68/73mm bottom bracket
    • FC-M645 83mm bottom bracket
    • Press-Fit bottom bracket compatible
    • 34T/36T/38T
    BENEFIT
    • Strong thick-wall 2pcs-crank arm
    • Strong steel axle
    • Steel pedal insert
    • Choices of spec
    • Weight: 906g (FC-M640, 36T, 170mm, without bash guard) 938g (FC-M645, 36T, 170mm, without bash guard)

TECHNOLOGIES

PRODUCT SPECIFICATIONS

MODEL NO FC-M640
SERIES ZEE M640 Series
Color Series color, -
Average weight 828 g (38T), 817 g (36T), 807 g (34T)
   
2-piece crank construction
Chain line (mm) 50.4
Chain ring combination 38T, 36T, 34T (FC-M640/M645 chainring)
Compatible BB type Outboard
Compatible chain HG-X 10-speed
Crank Arm Length 165 mm, 170 mm, 175 mm
Crank fixing bolt included
Gear arms 4 arm
Optional Chain Guard Without chain/bash guard
P.C.D. (mm) 104
Rear speeds 10
Recommended BB_Pressfit SM-BB71-41A
Recommended BB_Threaded (E-type) SM-BB52
Recommended BB_Threaded (normal) SM-BB52
Threaded BB Shell Width 68 mm, 73 mm
Crank arm fixing bolt_With
Includes Crank Arm Fixing Bolt Yes
Q-factor (mm) 174.7

SERIES LINE-UP

  • Bottom Bracket Press-Fit Type Bottom Bracket
  • Pedal PD-M647
  • Brake Hydraulic Disc Brake Caliper
  • Brake Lever Hydraulic Disc Brake Lever