Prices shown in currencies other than USA Dollars are estimates based on current exchange rates. We will charge your credit card in USA Dollars on the day your order is shipped, and the conversion to your local currency will be done at the prevailing rate by your credit card issuer.
Shipments outside the USA are declared as “bike parts” for customs purposes and will include the actual amount paid for merchandise and shipping. Jenson USA will not mark your parcel as a “gift”, declare a value lower than the actual price paid, or otherwise prepare false customs information.
Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to shipping addresses in the 48 continental United States, and oversize charges still apply on some heavy/large items.
To receive free shipping, just add items to your cart and choose Standard Shipping during checkout.
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Faster than the speed of sound - HANDMADE IN GERMANY
With the Grand Prix Supersonic, your wheels can be tuned to an absolute minimum weight and rolling resistance. The tire, together with a Race 28 Supersonic tube make up just 205g of your wheel weight!
Its slick tread and black carbon compound make it true eye candy! The Grand Prix Supersonic is undoubtedly the fastest tire option for pure speed performance in racing situations.
With maximum speeds in mind, we dispensed with puncture protection and designed the tyre for just a limited number of racing kilometres. As a result, the Grand Prix Supersonic is not a training tire. It makes top speeds irresistible, but is only recommended for individual races on smooth circuits.
| tire | ETRTO | dimension | color | weight wire | weight foldable | rec. inflation, psi | max. inflation, psi |
| Grand Prix Supersonic | 20-622 | 700 x 20C | black/black | - | 150 | 145 | 170 |
Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.
Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Customers in the 48 continental United States: get free shipping with your $50 purchase today when you choose "Standard" shipping at checkout. Please note that oversize charges still apply on some heavy/large items, like wheelsets, bicycles, and workstands.