[hpv-forsale] Continental Grand Prix Supersonic 20-571 tyres for sale

[Zach Kaplan]

I have a pair of new in boxes Continental Grand Prix Supersonic 20-571 (AKA 650x20) tyres. These no longer made tyres were designed for time trial use and are super light. I weighed one of them at 128 grams and the other at 130 grams. Their maximum inflation pressure is 12 BAR (170 psi).

On the box it reads "The fastest clincher in the world! The Grand Prix Supersonic offers exceptionally low rolling resistance that rivals that of our renowned tubulars. Our super-fine polyamide casing combined with a thin layer of ASC Silica tread compound is extremely lightweight (140g - 700x20c). The Supersonic has outstanding wet and dry adhesion with excellent ride. Possibly one of the best time trial tires ever designed, the distinctive black sidewall and anthracite tread looks fast standing still."

I'll sell the pair for $50 plus postage cost (if necessary).

Zach Kaplan Cycles
Alameda, Northern California, North America
510-522-BENT (2368)
zakaplan at sonic.net