500 Class Lower Gear 145T Sale! from 498 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. This is a great replacement for the 500 class helicopter. Qty available:3 SKU:GT500-060-B