This tyres features: GreenGuard. The highly elastic, India rubber layer is 3mm thick. Other manufacturers such a tyre "Plus". However, Green is not just the colour, but also the philosophy: One third of the GreenGuard is made up of recycled latex products. "Anti-Ageing". The completely new sidewall construction can withstand for much longer the typical cracking resulting from overloading due to insufficient inflation pressure. Also the new Endurance Compound substantially increases durability. E-Bike Ready. The new Marathon has been designed for use on all types of E-Bikes. The following sizes bear the ECE75 mark, suitable for the use on faster, up to 50kph E-Bikes.