This pair of Tyres have the following use indications: GOOD GRIP situation for clean track. GOOD GRIP situation for medium asphalt. GOOD GRIP situation for medium temperatures. This pair of Tyres have the following technical features: REVO treated profile for the maximum traction and the maximum lateral grip. Treated profile studied to maintain the tyre surface alway clean from rubber murble. Compound exclusively developped for model tyres. Inside belt flexible but very strong, vulcanized directly together with tyre compound. Insert foam with special material for high temperatures, for maximum stability and high drive precision. Spoked wheel moulded with special material for high temperatures for maximum grip and stability. Special gluing system 100% guaranteed.The main sizes for this tyre are: WHEEL fixing with square 18mm. TYRE outside diameter 118mm. WHEEL inside diameter 90mm. TYRE tota width 65mm. Note:The harder a tire compound - the longer it lasts, but the more moderate the performance.The softer a tire compound - the better the performance, but the lower the durability. Hint!As a rule, the same tires can be used for front and rear.If the vehicle tends to oversteer, this can be avoided by using a harder front tire!In wet conditions you should use a rain tire which offers maximum grip under these circumstances.With the use of Magic Rain, a tire traction compound, the grip can be further improved.Check your tires after driving! It can happen that a tire starts to detach from the rim, in this case you should glue this spot immediately with our tire repair kit (y0067), otherwise the tire could detach completely from the rim.So find out which tire is the best for you!