Perfect for frames with integrated upper guides Aluminium backplate provides a stiff foundation. Integrated SX skid provides safeguard to the chainring and glides over rocks and obstacles. Nylon and TPU co-molding in the Whippersnapper™ provides durable protection from external blows and mutes internal contact with the chain. Swingset™ hardware. All installation and adjustment operations are possible with just a single 4mm HEX wrench. Oval compatible