Babolat BRPMB17R

Babolat RPM Blast 17/1.25 String Reel - 660'

Line: RPM Blast

$299.00

Reference price as of June 2026 Not a live offer

Popular at the highest levels of tennis, this is a staff favorite for spin. The slick surface of RPM Blast allows the main strings to slide out of alignment, grab the ball and then snap back to add extra RPMs to your shot. While all co-poly monofilaments do this to some extent, our lab tests confirm that RPM Blast is exceptional in this regard. Though RPM Blast offers a slightly softer feel than traditional polyesters, it is by no means the softest co-poly available. It is an ideal choice for big hitters with heavier rackets seeking maximum control, durability, and spin. (And it seems to be working quite well for Rafa!)

String specs

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

Where to buy

What players say

Liked 4 sources

Reviewers treat RPM Blast 17 as the same co-poly material sold in sets, prized for spin and control more than comfort. Advanced players with fast, full swings report heavy topspin and precise directional control, while slower or shorter swingers and arm-sensitive players find it too firm and underpowered.

Best for

Advanced players with full, fast swings
Aggressive baseliners chasing heavy topspin
Players who restring often and want durability

Pros

Exceptional spin from the string's grabby, gear-shaped profile
Precise control; reviewers trusted where the ball would land
Holds tension and stays playable for 8-10+ hours
Firm but surprisingly comfortable for a polyester, per some reviewers

Cons

Stiff and firm; several reviewers flag it as unsuitable for arm-sensitive players
Low power means slower or shorter swings struggle to access benefits
Feel described by one reviewer as muted/dampened rather than crisp
Noticeable tension loss and snapback drop-off after extended play