Revolution Design B7 | B84 Ultra Lightweight Differential Outdrive Set (For 10.5T or slower | 2pcs) A12 Can be a good option

Can be a good option when the car is too twitchy

The SPR-P1 spring is mainly recommended on the rear end of the car

New black coating version — no more rust

That this technology delivers on its promises is proven by World Championship A finalist Joona Haatanen

40mm: Suitable for majority of setup stations such as Hudy

Revolution Design B7 | B84 Ultra Lightweight Differential Outdrive Set (For 10.5T or slower | 2pcs) A12 Can be a good optionThe Revolution Design B7 B84 Ultra Lightweight Differential Outdrive Set is made for stock racing performance and reduced rotating mass. Designed for 10. 5T or slower motors, these outdrives help the drivetrain spin up faster and feel more responsive, while maintaining a precise fit for consistent diff operation. With a total weight of only 5. 3 g per pair, the set is 2. 4 g lighter than the original parts, offering a noticeable efficiency gain where