The X-15 has triple combination weights and a thick shell made in two hardnesses/finishes for either short or heavy oil. An innovative, hard-hitting ball, it's already proving to be a leader by keeping pins low and mixing.
    
    | Line | X-15 | 
|---|---|
| Color | Blue | 
| Coverstock | Urethane | 
| Core | 2-piece | 
| RG | |
| Differential | |
| Intermediate Diff | n/a | 
| Factory finish | Matte | 
| Weights | 14 thru 16lbs | 
| Cleared USBC | Yes | 
1 Review
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juggernaut99
I could only afford this type of ball since the higher priced items were beyond the average college budget. It allowed me to be competitive and make $$$ when necessary to make tuition payments, books etc. I may know of some in storage (100 or so) and I'm working on getting them out to clear out inventory. Some loyal STAR TRAX users may want to consider a collectors item or a real nice looking spare ball, or even to use on lanes minus head oil. Let me know. Shipping terms and other arrangements are open just contact me. See above address.