5Set 20mm carburetor intake manifold spacer seal for 50cc 70cc engine compatible with XR SSR KLX CRF dirt pit bike.This set includes five intake manifold spacers designed to fit 20mm carburetor systems.The spacers help improve air flow and throttle response by creating separation between the carburetor and intake manifold.Made to withstand engine heat and vibration, these seals a secure fit during.Suitable for use in small displacement two-stroke and four-stroke engines commonly found in off-road motorcycles and bikes. This is a compatible aftermarket component.Brand names are cited solely to show which devices it works with.