ISOSPEED Grey Fire 16L/1.25 String

Line · ISOSPEED Grey Fire

$7.50

Reference price · as of June 2026 · not a live offer

Introducing Isospeed Grey Fire ! This follow-up to Black Fire offers impressive comfort for a co-poly. Built with low-friction Liquid Wax technology, Grey Fire snaps back powerfully through impact for extra ball rotation. It also benefits from Isospeed's Triple Heating Technology , which helps the string flex more at impact for added comfort and pocketing. Big hitters looking for a comfortable and spin-friendly poly should give this one a serious look

String Specs

Gauge: 16/1.25mm
Length: 40ft/12m
Composition: Co-polyester Monofilament (w/Liquid Wax for less frictional notching and greater snapback)
Color: Grey