These are exactly like our Derby Worx Pro Inertia Lites except these come in yellow only.These Derby Worx Pro Inertia-Lite Pinewood Derby Wheels are the official BSA wheels that weigh in at only 1.8 grams and retain all of the lettering and numbering inside so they will meet most Pack, District and Council Rules. These are the lightest Pinewood Derby wheels that still have all the BSA lettering on the wheels. These wheels are much faster than stock BSA wheels. These wheels can be raced without any additional preparation. Set of four wheels.
Pro Inertia-Lites Features:2• Mold matched• Only 1.8 grams• CNC machined lathed with True Track Tread• Wheel bores reamed perfectly round and smooth• Inner and outer hub faces squared• Machined perfectly round• Tread surface machined perfectly flat• Slightly machined radius on the edges to replicate the look of a stock BSA wheel• The weight of the wheel is reduced from 3.5 to 1.8 grams each• Excess plastic removed from the underside of the wheel tread, the inside wheel face, and the inner hub• Official BSA lettering is still visible• The inside wheel hub is lightly beveled to reduce contact with the car body• NEW style for greater speed
What does this do for your car?• Round and smooth wheels roll much faster than standard wheels• Weight reduction provides a faster start because of low start up inertia• Weight reduction improves the balance of the wheel for a stable and faster ride• Beveled hub reduces the rubbing and braking when the wheel hub contacts the car body• These wheels will make your car much fasterThe Derby Worx Facts!
Note: Lighter wheels are only one of many factors that make a fast car. Light wheels alone may not improve your speeds. In addition to light wheels you must also have adequate lubrication, alignment and weight placement.
Not all BSA pack rules permit these Inertia-Lite wheels. Please check your local rules to see what wheels are permitted.