546 SERIES Off Road Shinko's newest Knobby offering, the 546 series is an excellent choice for Off-Road applications. Front Tire features: Front knobs use a 45 knob pattern for a better biting edge when cornering and better braking stability Tall knobs offer excellent traction in soft to intermediate loam conditions 90/100 sizing features a taller side wall to prevent pinch flats in roots and rocky conditions. 80/100 sizing feature lower profile sidewall for more precise cornering and less sidewall flex Rear Tire features: Work very well in a wide range of soil conditions from mud, sand to intermediate loam Tall wide spaced knobs offer great self cleaning to provide excellent straight line traction on softer conditions Rubber compound offers excellent durability for long knob life Fits: GasGas MC350F 2022 Honda CRF450R 2009 2011-2012 2014-2021 Husqvarna FC450 2017-2022 FC450 ROCKSTAR EDITION 2020-2021 KTM 350 SXF 2021-2022 450 SXF 2020 Kawasaki KX450F 2006-2013 2015-2019 Yamaha YZ450F 2003-2007 2009 2011-2015 2017-2021 YZ450FSP 2021