RHYTHM HALF LINK HOLLOW PIN CHAIN Color:Silver True Functional Ventilation (TFV) -

True Functional Ventilation (TFV) - When in motion air is forced through multiple air intake vents

the Siren can be inflated up to 100PSI for ultra-low rolling resistance on smooth surface riding

High performance formula leaves dry

Safely Eliminates drive chain contaminants

RHYTHM HALF LINK HOLLOW PIN CHAIN Color:Silver True Functional Ventilation (TFV) -PRODUCT DETAILS Half link chains are the strongest chains and also allow for perfect wheel positioning as you can adjust your rear wheel by 1 2 link instead of a full link. This one has hollow pins to reduce the weight. Teflon Black, Silver or Gold Size = 1 2" x 3 32" Half link, hollow pin, 102 links Weight 12. 02oz