I've created it to combine durability and lightwieght of components which are essential values for trail/enduro purpose. This bike should handle very tough trails while descending but also easy to climb on mountain top. Those components are also very realiable - you need it when you want to take 100km trip deep into mountains. It's also good when You want to go for some jumping or even freeride. Why hardtail? lighter and much cheaper than any full suspension bike. Why different rims and brakes for front and rear? Just to lower the weight :) WEIGHT about 14,2kg PRICE about 3000$