ALU Power 1.25
Polyester string, 1.25 mm gauge.
Where to buy
prices as we recorded them, not a live feed — each row says whenSpecifications
Where it wins and loses
against the average for this categoryThe polyester string most credited with starting the modern poly era on tour — a 1.25 mm gauge with no published tension-loss or restring-interval figures on this specific listing, so its reputation currently outruns what we can verify here.
What the sources agree on
Polyester is well-established as the string type that best supports heavy topspin at lower tensions, because poly's stiffness lets the string snap back into place after it deflects on a heavy-spin swing — the mechanism behind why this and the RPM Blast below are both polys, not a coincidence of brand marketing. At 1.25 mm, this is a mid-range gauge for a poly: thinner than 1.30mm+ options that favour durability, thicker than 1.20mm options that favour extra bite and spin.
Where they disagree
This listing doesn't carry a published tension-loss-at-24h or typical-restring-interval figure the way the RPM Blast does below, so while ALU Power's reputation for playability and relatively fast tension loss is widely repeated across the sport, we don't yet have our own sourced number to put beside that reputation rather than just repeating it.
