FSA Gravity SX Pro 55-1 ZS44/ZS55 1 1/8"-1.5" Ahead headset

Semi-integrated headset for tapered frames in combination with forks, which have a full-length 1 1/8" steerer tube.

· Sealed bearings
· For head tube Ø at the top: 50 mm
· Construction height: approx. 10.5 mm
· Cover cap: 5 mm
· Weight approx. 115 g

Upper bearing cup (ZS 44):
· For head tube inner Ø:44 mm
· Aluminium bearing cup
· TH-MR 122 sealed bearing

Lower bearing (ZS 55):
· For head tube inner Ø: 55 mm
· Aluminium bearing cup
· TH-MR 127 sealed bearing

Including: sealed bearings incl. aluminium bearing cups, reducing cone for 1 1/8" steerer tube and 5 mm cover cap

Among other things compatible with the following Rose frames:
· Rose The Unchained 2014-2017
· Rose Soul Fire 2014-2015
· Rose Beef Cake FR 2012-2013
· Rose Beef Cake SL 2011-2012
· Rose Uncle Jimbo 2010-2017
· Rose Granite Chief 2010-2016
· Rose Verdita Green 2010-2014
· Rose Root Miller 2014-2016
· Rose Ground Control 2015-2017
· Rose Crystal Stoke 2014
· Rose Jabba Wood 2014
· Rose Dr. Z 2014-2017
· Rose Thrill Hill 2014-2017
· Rose Psycho Path 2012-2017
· Rose Mr. Big 2012-2016
· Rose Count Solo 2014-2017
· Rose The Duchess 2014
· Rose The Uprising 2015-2016
· Rose Mr. Ride 2014
· Rose The Jester 2012-2017
· Rose The Bruce 2016-2017
· Rose NPL 28" 2010-2012
· Rose Xtra Watt 2013-2016
· Rose Multitrack 2016-2017
· Rose Black Creek 2013-2017
· Rose Black Water 2011-2017
· Rose Multisport 2012-2017
· Rose Multistreet 2012-2017
· Rose Activa 2011-2017
· Red Bull NPL 2010
· Red Bull Pro Factory 2010
· Red Bull Team AL 2010
· Red Bull AL Factory 2010
· Red Bull WFS/WPS Factory 2010
· Red Bull Black Creek 2010-2012
· Red Bull Multisport 2010-2011
· Red Bull Activa 2010
· Red Bull Black Water 2010-2013