Universal Parts Variator Back Plate $6.99 Quantity discounts available QuantityPrice SKU: 151-36 Out of Stock Available for BACKORDER Email When Available - Click Here! Get notified when your part is back in stock. First Name Last Name Email Address (required)Suscribe to marketing emails. Email Me! Quantity -+ Add to Cart Details Specs Inner Diameter: 14mm Outer Diameter: 73.50mm Supported Models Baja SC50, Kymco, Panterra, QMB139 50cc/49cc , Roketa, Schwinn, Tank, Various unlisted makes/models DetailsSpecsSupported Models Back Universal Parts Variator Back Plate for 50cc 4-stroke QMB139 engines. Back Inner Diameter: 14mmOuter Diameter: 73.50mm Back Baja SC50, Kymco, Panterra, QMB139 50cc/49cc , Roketa, Schwinn, Tank, Various unlisted makes/models