This is the optional Yokomo BD8 40T Pulley Conversion Kit. By increasing the diameter of the front and rear differential pulleys, the rolling in the corner is better and the stall feeling is reduced, the drive efficiency is improved, the chassis roll balance is optimized, the cornering is rapidly rounded up, leading to a quick acceleration and top speed.
Since the response of the steering is shifted in a slightly mild direction, it is easy to operate, it is possible to connect the corners rhythmically. Besides improving lap times, it is a key item to raise the average lap on machines with few mistakes and to get better results.
NOTE: Since the cross bulk of the standard BD8 kit will interfere with the pulley, please purchase separately they Yokomo Aluminum Bulkhead C (YOKB8-32C40) for this conversion kit.