Mugen Seiki 0.9mm Clutch Spring Set (3)

Mugen Seiki MBX 0.9mm Clutch Springs. These clutch springs fit the MBX 1/8 nitro platforms using the 3 pin flywheel. 1.0mm springs are kit standard, thinner springs will allow earlier clutch engagement (easier to drive/less responsive), while thicker springs will allow higher rpm engagement, better suited for high grip tracks or for a more aggressive feel.