The Shift I/O 7 features our new 160mm travel 4-Bar linkage frame, with its up-to-date geometry, coupled with a Rockshox suspension package including a Yari RC 29" Boost fork and a Super Deluxe Select R Trunnion air shock for solid Enduro-type 160mm front and rear suspension. Its internal 630Wh down tube battery supplies power to the new Shimano EP-800 motor, which features increased torque (85Nm) at lower RPMs, a smaller size and a quieter function. The Shift I/O 7 features two different wheel sizes (for M to XL-sized frames) with a 29" front wheel and a 27.5" rear wheel to get the best of both worlds for an unmatched riding feel. With its new Shimano XT and SLX 12-speed components, the Shift I/O 7 allows for smooth, powerful rides up or down the hills with a wide-range gear ratio to save battery life when needed and precise, crisp shifting.