John James Racing and Penta Motorsports have expanded its lineup of race winning products to include a series of premium quality aluminum alloy racing wheels. These striking wheels are offered with your choice of black or bronze hard anodized finish. They can also be special ordered in custom colors. The rugged coating is .0025-.003″ thick and virtually impervious to the elements. The rim halves are spun from .090″ thick 6061-T6 aluminum alloy and feature a special safety bead that serves to secure the tire. Centers are CNC-machined from 6061-T6 billet aluminum and are of the popular 917-style 5-spoke design. Wheel sections are mated using 20 chrome moly bolts. These are made by ARP from 8740 alloy and rated at 170,000 psi tensile strength. Each wheel is individually assembled by skilled technicians, and Loc-tite is used on the precision-torqued fasteners to maintain the proper preload. A standard 5-on-130mm Porsche bolt pattern is employed for those who wish to mount the wheels to the OEM hubs. Other bolt patterns are available. Special Center Lock Hubs are also offered. They are made from CNC-machined 7075-T6 alloy and have stainless steel safety pins. The Center Lock nuts are tightened using a special 3.250″ socket.
Wheels are available in a wide variety of sizes that range from 16×6 to 17×17 and many different offsets. Some of the more popular applications are:
- 1973 Porsche 911 RSR “long hood”
- 1974 Porsche 911 IROC
- 1974 Porsche 911RSR “wide body”
- 1975-77 Porsche 934-934.5 Turbo
- 1976-77 Porsche 935 early Turbo
- 1976-77 Porsche 930 Turbo
- 1978-89 Porsche 930 Turbo
- Call for other Porsche applications
Rim halves are available from 3.5″ to 10.5″ (either inner or outer) in .5″ increments. Specify whether drilled 5-on-130mm or use with Center Lock hubs; black or bronze.