Description The Metzeler Block K is a Sidecar tyre offering riders: A vintage tread design with a modern compound which increases chemical grip and enhances the adhesive properties in a wide range of situations. Metzeler’s patented mixing process provides the Block K with excellent durability and tyre wear whilst still providing a good level of performance even when the tyre is worn down! The longitudinal central grooves enable the Block K to disperse water extremely effectively whilst also remaining very stable at high speeds. One of only a few sidecar specific tyres, Metzeler’s Block K is the perfect choice for any sidecar owner, not only do they look awesome, but they also offer some very good performance as well! The Metzeler Block K is only available in ONE size: 4.00 – 18 64P (K) The Block K is a tube type tyre meaning that an inner tube is required when fitting to your bike.