Crank Brothers Opium SL Headset

Upper and lower bearings are sealed 34-ball cartridges
DH/Race headset
SL models are stainless steel
All models include installation ring, no extra tools needed to press cups into frame
Steerer Tube:1-1/8" Threadless
Headset Type:1-1/8" Standard Cups
S.H.I.S Upper:EC34
S.H.I.S. Clamp Diameter:28.6
S.H.I.S Lower:EC34
Crown Race:30.0
Defined Color:Silver
Color:Silver/Red
Stack Height:21 mm
Bearing Type:Cartridge
Material:Stainless Steel
Weight:70.0 g