YSS ‘Pro-X’ 280mm Performance Shock for Yamaha Aerox 50 The YSS ‘Pro-X’ shock is maybe the best value for money shock we sell. Not only does it offer significantly better performance than the stock shock, but also adjustability via 5 different levels of spring preload which can be easily changed via the supplied tool. The durable black finish wont attract too much attention, and will keep it looking great.
