Zipp Tangente SL Speed 700c Road Cycle Tubular Tire Review

It took us 14 months and two trips to the wind tunnel to get it right, resulting in the 21 mm version of the Tangente saving up to 9 seconds over 40 km compared with a traditional non-aero shaped tire when each was paired with a Zipp rim. The secret to the aero success of the Tangente line of tires is the shape. The leading edge radius has a slightly more pronounced point than a traditionally round-shaped tire, starting the airflow transition from tire to rim sooner and more efficiently. While also helping the Tangente cut through the wind, we’ve used our patented ABLC dimples to help the tire better adhere to any road surface more efficiently than a traditional “file” tread pattern, helping to deliver better cornering and braking. The dimples are not connected to one another, resulting in a lower overall stress in the tire casing and a smoother rolling and longer lasting tire. The Tangente is not just a delicate special event tire. Thanks to our partnership with Vittoria , the Tangente sports a durable yet supple 290 tpi casing. Because the dimpled pattern resists cracking so well, we’re able to use a lower durometer rubber compound resulting in low rolling resistance and high cornering grip in wet and dry conditions. Tangente tubular racing tires come in 21 mm or 23 mm widths. Average weight 282 g, /- 10g (tubular). Tangente has a 25 mm valve stem (valve stems of 37 to 40 mm recommended for use with Zipp valve extenders). Packaging includes tire pressure chart to optimize r