VMC Chinese Parts Part number: 934-GY6150-105 Qty. 1 2 3 4 5 6 7 8 9 10 Add to Cart Final Transmission Anchor O-ring on GY6 125cc 150cc Engine - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available. Final Transmission Anchor O-ring on GY6 125cc 150cc Engine O-ring specs: Inner Diameter: 7.5mm Thickness: 1.5mm