Park Tool SW-40 Four-Sided Spoke Wrench JuneWahooSale Built from our ultra-breathable woven

Built from our ultra-breathable woven fabric

featuring an EPS liner for crash protection and a PC shell for strength and stability

making every ride a good one—whether it’s a quick lap or a full-day escapade

Thanks to the chain engaging immediately

Park Tool SW-40 Four-Sided Spoke Wrench JuneWahooSale Built from our ultra-breathable wovenThe Park Tool SW 40 uses the same world famous design and high quality materials as our three sided spoke wrenches, with a unique four sided wrench design for extra strength and support to help prevent slipping and deformation of nipples. Each SW 40 is made in the USA, and is heat treated and nickel plated for long service. Park Tool spoke wrenches are vinyl dipped to indicate the size at a glance. Features Sized for spoke nipples with 3. 23 mm (0.