Babolat BRPM33017R

Babolat RPM Blast 17/1.25 String Reel - 330'

Line: RPM Blast

$159.00

Reference price as of June 2026 Not a live offer

One of the most iconic co-polys of all time, this firm and durable string is perfect for big hitters looking to load the ball with pace and spin. The slick surface of RPM Blast enables the strings to snap back with vicious force, resulting in extra RPMs (think heavy ball). It also seems to be working quite well for Rafa! Did we mention the spin?

String specs

Gauge	17/1.25mm
Length	330ft/100m
Composition	Co-polyester Monofilament
Color	Black

Where to buy

What players say

Liked 4 sources

RPM Blast 17 is widely described as a top spin-and-control polyester for advanced players with fast, full swings. Reviewers consistently rate spin and control very high and power low, with comfort better than most firm polys but still not suited to arm-sensitive players. This 330' reel is the same string material and gauge sold in 40' sets, so set reviews apply directly.

Best for

Advanced players with fast racquet-head speed
Aggressive topspin baseliners
Open-pattern, spin-friendly frames
Players who restring often

Pros

Exceptional spin generation from the octagonal profile and slick surface
Strong control at full swing speed, with low power keeping shots in the court
More comfortable than many firm co-polys, even on serves and volleys
Holds tension and playability well for a poly, typically through a full string job

Cons

Too stiff and underpowered for beginners or players with shorter, slower strokes
Not arm-friendly for players with existing elbow or shoulder issues
Playability and snapback drop off noticeably after 8-12 hours of hard hitting
Control is good but a step behind the most precise control polys like Luxilon 4G