Simpson and Grandson Bike Customizing

 is a limited-time building that was released on August 28, 2019, as part of Act 4 of the Simpsons Babies 2019 Event. It was the third prize to be won in the event's Act 4.

About
 is a store run by Bart Simpson that customizes bikes.

Regular
Bart Grampa
 * Grease the Wheels - 4h
 * Grease the Wheels - 4h

Trivia

 * Only one can be obtained.
 * It can be placed on grass, pavement, dirt, krustyland road, boardwalk, pier, edge of boardwalk, or edge of pier.