Torpedo7 Alloy plug for 1 1/8 inch carbon steerer:

For forks which feature a 1-1/8 inch carbon composite steerer tube, where the use of a normal star nut is not advisable.
Alloy plug expands inside the steerer tube for grip.

Features:

• Alloy plug 1-1/8",
• For Internal Diameters: 22-26mm
• Overall Length 52mm 
• Expander Length 32mm 
• for alloy & carbon steerer tube use
• Weight: 50grams