Discoblox Grind Blocks / Standard / Black

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Standard Discoblox Grind Blocks by Disco Tech are designed for use with quad roller skates to help you stall and slide with ease. These grind blocks are 40mm in height, durable, lo ng lasting and extremely easy to pop on your skates! The set includes a pair of grind blocks and four short cushions (enough for a pair of skates). Details To Install, simply remove your trucks and bushings. Place the Discoblox mounting bar over the king pin, open end to the front. You will find four bushing barrels supplied. These have been reduced in height to accommodate the thickness of the mounting bar. Fit the supplied bushing barrel, and your bushing retainer cup, between the mounting bar and the truck. Replace top bushing barrel/cone, retainer cup and kingpin nut. Job done! Show more