Q. What is the difference between its four variants - Pulsar 150?

The engine and transmission is same in all the variants. One variant has appearance of pulsar 180 but engine is of 150cc and it has dual disc, another variant is normal with single disc which we see mostly on roads and last variant is the retro one which resemble the older design of pulsar it doesn't include tank cowl.

Classic/neon is the same. std is a classic/neon model with stickers. dual sic comes with split seats and dual disc, but doesn't have kick starter.

Only cosmetic changes