K&N TB-1610 Replacement Air Filter for Triumph Thunderbird 10-18 Using our Patented Quad Lock

Using our Patented Quad Lock dual action locking mechanism

XL Series front fairing speakers

they have EN 1621

in both traditional glue on and lock-on fittings

• Replaces OEM # 21920-83

K&N TB-1610 Replacement Air Filter for Triumph Thunderbird 10-18 Using our Patented Quad LockK&N's high flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. Features Designed to provide increased horsepower and torque Pleated media provides a large filtration area offering long service intervals Multiple