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Get faster, smoother throttle response where you need it most. Installed in your throttle body’s Venturi tube, the precision-engineered sleeve reduces the diameter and accelerates the velocity of your air-fuel mix.
Add the thinner butterfly valve and less obstructive shaft, and you’ve got faster, more even throttle response through low- and mid-range.
For better top-end throttle response (90-100% open throttle position), use the kit’s larger butterfly valve without the sleeve.
This product fit the following bike:
2025
EC 125 (125cc)
MC 125 (125cc)
MC 150 (150cc)
MC 250F (250cc)
EC 250F (250cc)
MC 250 (250cc)
EC 250 (250cc)
EC 300 (300cc)
MC 300 (300cc)
MC 350F (350cc)
EC 350F (350cc)
EC 450F (450cc)
MC 450F (450cc)
EC 500F (500cc)
2024
MC 125 (125cc)
MC 250F IKD (250cc)
EC 250F (250cc)
EC 250 (250cc)
EC 250F IKD (250cc)
MC 250 (250cc)
MC 250F (250cc)
EC 300 (300cc)
EC 350F (350cc)
MC 350F (350cc)
EC 450F (450cc)
MC 450F (450cc)
EC 500F (500cc)
2022
SM 700 (700cc)
New