The 200mm universal rear shock absorber, with a 180mm hole, is a perfect choice for electric bikes, mini motorcycles, dirt bikes, go karts, and mountain bikes. This adjustable coil spring damper offers stability and control, ensuring a smooth ride. Its ease of installation and adjustment makes it easy to adapt to various wheel sizes and frame configurations. The 8mm mounting hole ensures a secure fit, while the 180mm hole size provides plenty of room for a larger coil spring for added performance or a smaller one for energy efficiency. With its high-quality materials and robust construction, this shock absorber will withstand the rigors of any off-road adventure.