Hero Hastur and Royal Enfield Classic 500 are two extremely different type of motorcycles. The 499 cc, fuel injected single cylinder Royal Enfield Classic 500 is carrying a big engine with loads of body weight onto it. The engine is relaxed and tuned in the cruiser motorcycle segment while the Hastur on the other hand is street concept with a much bigger 620 cc engine. Hastur takes just 4 seconds for a 0-100 kmph sprint, thanks to its super light body while the top speed sits at 240 kmph. Royal Enfield has a limited top speed of 130 kmph.