upgrade new bike

[Berry]

hi guys if you buy a new bike can you order it with the group set u want or do they come like that from factory if i want to upgrade 105 to sram do i yust pay the diffs or the full sram

[gummibear]

Go to the shop and chat with them and see what they will do for you.Most shops will help you out.

[Thomo]

Most bikes comes with standard spec, but as BeOne said, most good bike shops will be happy to help you out with what you want.