Shop All Categories. 2 x Nankang NS-20 Performance Road Tyres 205 40 R17 84V XL Extra Load 2054017. PERMANENTLY LOW TYRE PRICES ON-LINE. The NS-20 is a high performance tyre which is extremely well suited to spirited road driving. The NS-20 has excellent wet grip due to 4 straight wide grooves that are able to improve water drainage which enhances maneuverability on wet roads, while two sub shaped grooves on the tyre shoulder improve drainage while helping to reduce uneven tread wear. The use of kerbs have also helped to reduce the noise caused each time the tyre rotates giving improved ride comfort. PLEASE NOTE: Picture Is For Illustration Purposes Only. 10.07.2024, 08:43:30. Demon Tweeks was established in 1971 to service the needs of the motorsport competitor and our principals of offering top products, quality, service and rapid availability are as important to us today as they were in the very beginning. We are leaders in the supply of race wear, competition and road tuning parts for cars and bikes. Within a staff totalling over 140 is a dedicated sales team servicing upwards of 3000 telephone and online enquiries received every day from the UK and the rest of the world. Our impressive 140,000 sq. That means no additional charges or surprises when your item arrives. If your parcel is lost or damaged along the way, the GSP protections and policies will cover you. CAN I CHANGE MY ADDRESS ONCE I’VE PLACED MY ORDER? I’VE ADDED A NOTE TO MY ORDER, CAN YOU VIEW IT? As you may require it in the event of a claim with your carrier. Monday – Friday: 8.30am – 5.00pm. Saturday & Sunday: CLOSED. Also, during periods of high demand, there may be additional delays in us responding.