Shimano SM-CRE80-12-SB 4 ARM ADAPTOR C/L:56.5mm - 104 mm BCD Replace Images Tyre Insert Air Flow System:

Tyre Insert Air Flow System: 6 slots machined into the base of the valve stem for compatibility with most tubeless tyre inserts and allowing your tubeless sealant fluid and air to flow freely when running tubeless tyre inserts

is the ideal solution for XC racing or weight-conscious gravelers and packers

providing high levels of performance and the amazing feel of a coil

Includes stainless steel bolts

Works with 18 mm spikes

Shimano SM-CRE80-12-SB 4 ARM ADAPTOR C/L:56.5mm - 104 mm BCD Replace Images Tyre Insert Air Flow System:Chainring spider for the Shimano STePS SM CRE80 and SM CRE80 B as well as the SM CRE70 and SM CRE70 B chainrings of the FC E8000, FC E8050 and FC M8050 crank arms. Adapts chainrings with a 104 mm BCD.