HPI Clutch Spring (8000RPM/Red) BAJA 5B

HPI Clutch Spring (8000RPM/Red)BAJA 5B / FOR H15448 / IF USED WITH H15440, ENGAGEMENT WILL BE AT 7,000RPMSpare part for H15448 Baja 5B High Response Clutch Shoe/Spring Set. When used as standard, the clutch will engage at 8000RPM, which is great for low-grip or muddy surfaces. If used with H15440 Clutch Shoe/Spring Set, the clutch will engage at 7000 RPM, ideal for high-grip surfaces.??