Royal Enfield has been riding the retro wave for quite some time now. But soon, it’ll face tough competition from one of the iconic names from the past - Jawa. The upcoming Jawa 300cc motorcycle has been teased quite a few times now. It blends classic lines with a modern motor and mechanicals. If you’re planning to pick one of these retro motorcycles first, here’s a detailed spec comparison to see which one comes on top, on paper at least.