Kyosho IF442KY Color Suspension Bush Set Yellow MP9

A set of colored suspension bushes for the Kyosho Inferno MP9, sold by Kyosho as an option part.

Suspension bushes are the inserts that sit in the arms and holders where the hinge pins pass through. They do two jobs at once. Functionally they set where the pivot actually sits, which means swapping bushes lets you change roll centre, anti-squat and camber gain without buying new arms or holders. That is real geometry tuning, and it is why serious racers carry more than one set.

The second job is practical. Kyosho color-codes these sets so you can see at a glance which configuration a car is running. On a shelf of near-identical buggies, or when you are trying to remember what you changed between heats, being able to read the setup off the car saves real time.

Kyosho's own description is direct about both: new bushes for various settings, and useful for dress-up and visibility. Dealers list the set at twenty-two pieces. These are an upgrade over the standard bushes rather than a like-for-like replacement, and they fit the Inferno MP9 including the TKI2, TKI3 and TKI4 revisions.