How Long Does LEGO® Transformer and Speed Regulator (4548) Take to Build?

A typical builder finishes LEGO® Transformer and Speed Regulator (set 4548, 3 pieces) in about 5 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.