Calculating Overall Tire Diameter
Penske Truck Rental offers two devices for towing your vehicle, a tow dolly and a car carrier. The formula below will help you determine which device you will need to use based on your towed vehicle's tire size.
The tire size can be found on the side wall of your tire.
Use the formula below to determine your overall tire diameter.
|(Cross Section Width * (Aspect Ratio / 100)) * 2||+ Wheel Diameter|
For example, if the tire size is 225/50R 16, the equation will be implemented as follows:
|(225 * (50 / 100)) * 2||+ 16 = 24.85|
Which Towing Device Do I Need?
- A tow dolly is required when the overall tire diameter limitation is 22 to 27 inches.
- A car carrier is required when the overall tire diameter limitation is 22 to 28 inches.
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Penske’s Rent for a Day, Get a Second Day Free Special promotional discount applies only to the daily vehicle rental charges. All taxes, fees (including but not limited to vehicle use taxes), and surcharges (including but not limited to the Mileage Fee, Environmental Fee, Vehicle License Fee) are extra. Optional products such as supplemental insurance, Limited Damage Waiver (LDW), hand trucks, furniture pads, and dolly’s are extra. Fuel charges are extra. Promotional discount is valid only in the Contiguous United States. Customer must select the number of days for the rental and then the promotional discount is automatically applied at checkout. The promotional discount is available on household / personal local rentals only. The promotional discount is valid from 12:01AM ET, 10/1/2022 until 11:59PM ET, 11/11/2022; provided that the Customer must pick up the vehicle on a Sunday, Monday, Tuesday, or Wednesday during the promotional period. Limit of one use per Customer. Maximum of five (5) free day’s rental charges per Customer. This offer is subject to vehicle availability at the time of reservation. Promotional discount may be combined with other coupons, offers, or discounts. This promotional discount is not redeemable for cash or cash equivalent. The promotional discount is not transferable and Penske reserves the right to change terms at any time in our sole discretion.