COMPONENTS: Shimano Ultegra Rear Freehub FH-6600

* 9-speed compatibility
Both 10-speed and 9-speed cassette sprockets compatible
* Front hub radial lacing compatible
* Smooth rolling
Super polished ball races for high precision, durability and smooth rotation
* Internal Grease Sleeve
O-rings of front hub and the internal grease sleeve of freehub help maintain and increase service life to keep the original performance over an extended time period.
* Weight : 347g (FH-6600), 64g (QR)

Sprockets 10, 9, 8-speed
Over locknut 130 mm
Axle length 141 mm
QR lever 64g
Spoke holes 36/32/28/24, 24 (aero)
Spoke hole circle 45 mm
Hub shell forged aluminum/anodized
Sealings labyrrinth and contact seals
Stainless Steel Balls No
Freehub Body steel
Weight 347g (excl. QR)
Center to Flange (right) 20,8 mm
Center to Flange (left) 38,4 mm