[piggybackrevo]

can i use a bump box on my RTR truggy or do i need a bigger flywheel???

[Kuldeep]

Of course you can use your bump box.

Most RTR buggys are able to use starterboxes. It would be stupid to have to change the flywheel lol, so they dont make it un-useable.

[Ball Racing]

Some buggies, and truggies with pull starts, and big back plates like a mach 26, use a taller motor mount, which makes it tough to use the starter box.

The "pro" kits come with the low mounts, also some buggies-truggies need to have the opening for the flywheel cut out, and bevel to allow the bump box to reach the flywheel.

I would not seek a larger flywheel.
Some stater boxes have different diameter wheels, and sometimes a smaller wheel can make it further up into the chassis before rubbing.