Spitfire Skateboard Wheels Bighead 50mm 99A - Set of 4 Size:50mm but our abrasion test chart

but our abrasion test chart shows why Bones is the best value

C-1 and C-2

139 - 323144 - 335149 - 340159 - 345169 - 357

• 100% Cotton

Wheels Width   57

Spitfire Skateboard Wheels Bighead 50mm 99A - Set of 4 Size:50mm but our abrasion test chartSpitfire Skateboard Wheels Bighead 50mm 99D Description Spitfire Skateboard Wheels Bighead 50mm 99D are available in Classic Shape with the Bighead prints on all 4 wheels. Detail Shape Classic Qty Set of 4 Diameter(Size) Diameter is the overall size of the wheel in mm. 50mm Durometer Durometer is the hardness of the Wheel. The higher the number the harder the wheel . 99DU=99A Surface Threaded Surface is a machine mark from their manufacturing process.