Bontrager R4 Aero Tire

Bontrager's R4 Aero Tire is all about making you faster and more efficient. Its 220tpi casing creates less drag and provides a supple road feel you'll love, while the tread minimizes rolling resistance and grips great in the corners. The R4 ...(Read More)

Bontrager R4 Aero Tire
$41.99
$83.99
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Bontrager's R4 Aero Tire is all about making you faster and more efficient. Its 220tpi casing creates less drag and provides a supple road feel you'll love, while the tread minimizes rolling resistance and grips great in the corners. The R4 Aero also features integrated flat-tire protection. Plus, this amazing tire has Bontrager's unique aero wing design that saves you energy mile after mile. In fact, it has been tested to save over three minutes in the bike leg of the Ironman Triathlon! No wonder Keith Bontrager himself calls the R4, "the World's Fastest Tire."

Bontrager Aero wing
Bontrager's R4 Aero Tires include a unique aero wing structure that improves airflow over the tire-rim interface (right). This interface causes significantly less air disturbance than a standard clincher tire (left).

The high thread-per-inch casing let this tire conform to the road/trail for superior cornering and comfort.