SHIMANO ZEE MTB Crankset 1x10-speed

FC-M645

ZEE_M640_m

FC-M645

ZEE - MTB Crankset - 1x10-speed

The ZEE FC-M640 crank is designed for the rigors of gravity riding with thick-wall 2-piece cranks, a strong, steel axle, and steel pedal inserts. Chainrings include 34, 36, and 38T.

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

TECHNOLOGIES

PRODUCT SPECIFICATIONS

MODEL NO FC-M645
SERIES ZEE M640 Series
Color Series color
Average weight 858 (38T) 847 (36T) 837 (34T)
   
Remarks For 83 mm bottom bracket shell width
2-PIECE CRANKSET
Chainring combination 38T, 36T, 34T (FC-M640/M645 chainring)
Compatible bottom bracket type_Outboard
Crank fixing screw included
Crank arm length (mm)_165
Crank arm length (mm)_170
Crank arm length (mm)_175
Spider/Gear arms 4
Optional chain guard_Without chain/bash guard
Recommended bottom bracket_Press-fit SM-BB71-41C
Recommended bottom bracket_Threaded (E-type) SM-BB52
Recommended bottom bracket_Threaded (normal) SM-BB52
Threaded bottom bracket shell width (mm)_83
Crank arm fixing bolt_With
Q-factor (mm) 189.7
Chain line (mm) 57.9
Compatible chain HG-X 10-speed
P.C.D. (mm) 104
Rear speeds 10
O.L.D._Thru (mm) 150, 157

SERIES LINE-UP

  • Pedal MTB Flat Pedal
  • Pedal SPD Trail Pedal
  • Rear Derailleur ZEE Rear Derailleur 10-speed
  • Shifting Lever ZEE Shift Lever 10-speed

REPLACEMENT PARTS

  • Chainring Chainring 38T for FC-M640 FC-M645
  • Chainring Chainring 36T for FC-M640 FC-M645
  • Chainring Chainring 34T for FC-M640 FC-M645