HOLLOWTECH II(第二代中空技术)曲柄组(2x11 速)

DURA-ACE_R9100_m

FC-R9100

DURA-ACE_R9100_m

FC-R9100

HOLLOWTECH II(第二代中空技术)曲柄组(2x11 速)

  • FEATURE
    • 轻量化与效率的最佳平衡
    • 保持高刚性并减轻重量
    • 后中心的长度更短,兼容 135mm的锁紧螺母间距
    BENEFIT
    • 最佳动力传输
    • 标志性设计
    • 专为竞赛设计的碟刹系统
    • Rider tuned档位选择

相关技术

产品规格

型号 FC-R9100
系列 DURA-ACE R9100 Series
Color Series color, -
Average weight 650 g (55-42T) 642 g (54-42T) 626 g (53-39T) 624 g (52-36T) 614 g (50-34T)
HOLLOWTECH II Technology X
Threaded BB shell width_70mm X
Chain line (mm) 43.5
Chain ring combination 55-42T 54-42T 53-39T 52-36T 50-34T
Compatible BB type_Outboard X
Compatible chain HG-EV 11 速/HG-X11
Crank fixing bolt included X
Crank arm length (mm)_165.0 X
Crank arm length (mm)_167.5 X
Crank arm length (mm)_170.0 X
Crank arm length (mm)_172.5 X
Crank arm length (mm)_175.0 X
Crank arm length (mm)_177.5 X
Crank arm length (mm)_180.0 X
Gear arms 4
HOLLOWGLIDE X
HOLLOWTECH Technology X
Optional chain guard_Without chain / bash guard X
P.C.D. (mm) 110
Rear speeds 11
Recommended BB_Pressfit SM-BB92-41B
Recommended BB_Threaded (normal) BB-R9100
Threaded BB shell width_68mm X
Crank arm fixing bolt_With X
Q-factor (mm) 146