Model 1 Description:
Brand: TOOK
Color: Black Matte,Red,Green,Blue,Gold,Black Shiny
Material:T800 carbon fiber(Top cap)+Aluminum(expander)
Top cap thickness:2-2.2mm (strengthen)
for Steerer tube Diameter:28.6mm/(1-1/8")
Weight:about 54.5g, top cap 6.1g
Package included:1 Set (Expander&Top cap)
Model 2 Description:
Brand: KRSEC
Color: Gold/Titanium/Rainbow
Material: Aluminum Alloy(Expander&Bowl Cover)+Stainless Steel(Screw)
Weight: about 58g
Bowl Cover Thickness: 9mm,approx
Bowl Cover Diameter: 32mm
Screw Length: 33mm(Gold/Rainbow) ; 30.4mm(Titanium)
Package included: 1PC*Expander&top cap
Suits 28.6mm=1-1/8 in fork steerer tube and headsets