ZEE_M640_m

曲柄组 (1x10速)

FC-M640

ZEE_M640_m

FC-M640

曲柄组 (1x10速)

  • FEATURE
    • FC-M640 68/73mm中轴
    • FC-M645 83mm中轴
    • 压入式中轴兼容
    • 34T/36T/38T
    BENEFIT
    • 强劲的厚壁二片式曲柄臂结构
    • 强劲的钢轴
    • 钢制脚踏螺纹
    • 可选规格
    • 重量: ‌906g (FC-M640, 36T, 170mm, 不含保护盖) 938g (FC-M645, 36T, 170mm, 不含保护盖)

相关技术

产品规格

型号 FC-M640
系列 ZEE M640 系列
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 速
Crank Arm Length 165 mm, 170 mm, 175 mm
Crank fixing bolt included
Gear arms 4 臂
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

产品系列

  • 中轴 压入式中轴
  • 刹车 油压碟刹夹器
  • 碟刹盘片 6 螺栓碟刹盘片
  • 筒轴 12mm 后 E-THRU 筒轴 I 型,适用于 142mm/148mm 锁紧螺母间距