DW Machined Chain Drive Double Bass Pedal. Machined Chain Drive Double Pedal. Open Box. DW Machined Chain Drive Double Pedal. Building on the success of the MDD Machine Direct Drive Pedal, the MCD is a boutique pedal that shares many of the patented features, industrial design and build-quality of its direct drive cousin. The most striking difference is an adjustable, sprocket-less cam that incorporates a gear shift-style lever. The lever allows players to quickly shift between the most popular chain-drive cam settings and is easily accessible when mounted to a bass drum. Perforated footboard with matching Contoured heel plate. Tri-Pivot Swivel Toe-Clamp (US Patent Number 9,240,169). Vertical Spring Adjustment (US Patent Number 9,589,546). 110 Control Beater (US Patent Number 8,633,367 B2). We are authorized dealers for all these brands. We operate a 30-day return period. A 10% re-stock is more likely if the unit comes back in mint condition. Also, Items which we do not normally stock i. “Special Orders”, discontinued products, close-outs, used products, etc. We strongly suggest that you check your order after receiving it to be sure that it is in proper working order.