Cylinder base gasket for KDX250R The model is KDX250-D1/D2/D3/D4. Thickness is about 0.5mm. KDX250 "R" and "SR" have different shape of cover. Please note: Aftermarket. We use sheets made by Japan Balcar Industrial and are certified by professional shops. The color of the material may change without prior notice, but the performance of the product does not change.