



This part being universal, it may require adaptations
RFX Inner Tube 4.25/4.50-18 120/90-18 (MT609-OT164.2.5M) — A reinforced inner tube designed for 18-inch wheels, made by RFX. With a thickness of 2.5 mm and a TR4 valve, it meets replacement needs for 18" rims fitted with common metric and English tire sizes. Reliable design and clear compatibility for riders and workshops.
Ideal for replacing a worn inner tube during maintenance or roadside repairs, this RFX inner tube offers increased thickness for better mechanical resistance compared to standard models. Check the compatibility with your rim and the required valve length before installation. For a clean installation, use appropriate tire levers and inspect the condition of the bead and rim (edges, burrs, seals) before inserting the new tube.