Guts & Glory WCUC17W

Weiss CANNON Ultra Cable 17/1.23 String White

Line: Weiss CANNON Ultra Cable

$12.90

Reference price as of June 2026 Not a live offer

Weiss CANNON Ultra Cable comes with a square shape and four sharp edges, giving it tremendous bite. In addition to being one of the most spin friendly strings we've ever playtested, this string holds the top spots for spin potential in our string lab. It also comes with above-average comfort for poly-based monofilament.

String specs

Gauge	17/1.23mm
Length	40ft/12m
Composition	Co-polyester Monofilament
Colors	White

Where to buy

Tennis Warehouse

What players say

Liked 4 sources

Ultra Cable is a shaped co-polyester built for spin and control, and Tennis Warehouse's playtest and most customer reviews back that up with high marks for both. The main trade-offs are low power and a firm, stiff feel, and some users report quick tension loss even though the official durability score is high.

Best for

Big hitters with long, full swings
Players chasing max spin and control
Players who already use stiff pollys

Pros

Very high spin and control scores in Tennis Warehouse's playtest (95/95)
Above-average comfort for a shaped poly, per multiple customer reviews
Several long-term users report it holds tension well and even plays better as it ages
Sharp square profile gives strong bite on the ball

Cons

Low power (54/100 in the TW playtest) so it suits players who generate their own pace
Mixed reports on tension maintenance: TW calls it average, and some buyers report losing tension after one session
Firm/stiff feel that TW and buyers say is not for beginners or compact strokes