OEM NOS Harley-Davidson Trike Rear Air Shock 13" 83480-09 Triglide Heavy dutyOEM NOS Harley Davidson Trike Rear Air Shock 13" 83480 09 Triglide Heavy duty factory new. This listing is for a single (1) genuine Harley Davidson Rear Air Shock (Part # 83480 09). This is the heavy duty 13 inch version originally found on Harley Trike models. It is the perfect solution if you need to replace a single leaking or damaged shock on your Tri Glide or if you are piecing together a custom suspension setup. Specifications Part Number: 83480