The smooth lines of the LEGO® Technic Black Champion Racer can only mean one thing… speed! Pull the super-sleek car back, release and watch it shoot forwards! The black and orange color scheme makes it look even cooler and there’s a sticker sheet of chrome decals to add even more detail. For an even more action-packed play experience, combine your model with 42027 Desert Racer to build a Race Truck with 2 pull-back motors!
Features a pull-back motor for extra speed and cool color scheme Straightforward build with all the key Technic elements to challenge your building skills. Super cool contoured body shape and distinctive black and orange and chrome decals. Pull back and get ready to blast away from the starting grid.
- Black Champion Racer measures over 2” (6cm) high, 9” (24cm) long and 3” (10cm) wide.
- Combine with 42027 - Desert Racer to create an amazing Race Truck with 2 pull-back motors!
- Combi model measures over 3” (10cm) high, 8” (21cm) long and 3” (10cm) wide.
This combined model build went well till close to the end for the rear wing. In the building instruction it uses a normal worm gear 2L and a 5L axle with stop. Both parts are not in the sets! This is what it all comes down to: 
First image the step in the instruction, second image the part in the inventory of the booklet and finally how I managed to solve it with existing parts in both the sets. At first I thought there was an error in the inventory in bricklink.
Main model
Features
- Black Tire 37 x 22 ZR.
- Black Wheel 30.4mm D. x 20mm with No Pin Holes and Reinforced Rim.
Parts List
Alternative Models
