YINETTECH RC Car Timing Drive Belt S3M-180-5.5 60T 180 mm Compatible with HPI RS4 Replace OEM HPIA848

["- Compatibility And Identification: Compatible with HPI RS4 using S3M pulleys; replace OEM HPIA848; confirm 180 mm length, 5.5 mm width, 3 mm pitch, and 60 teeth before purchase.","- Smooth Power Transfer: 3 mm pitch and 60T profile support consistent acceleration and throttle response; durable rubber construction helps reduce skipping and drivetrain noise.","- Fitment Notes: Designed for rear transmission layouts with two pulleys using S3M belts; install with teeth facing pulleys and avoid sharp bends during setup and storage.","- Use Scenarios: Restores performance on worn or stretched rear drive belts; ideal for on-road tracks, club practice, and parking lot running; compact spare for pit box travel.","- Verification Tips: Model S3M-180-5.5 60T; compare with vehicle manual or old belt print to confirm exact size, pitch, and tooth count."]