M2r km140sm km160sm pit bike fully adjustable fork legs the best pit bike forks from m2r.fully adjustable for rebound and compression, these high quality forks are fitted as standard on the m2r supermoto race bikes.these will also fit the m2r km125mx, km140mx, kmx140, km160mx and kmx160fork length 735mmtriple clamp fitment is 45mm top and 48mm bottom.these forks require the specific km140 km160 front axle which is unique to this range. A standard 15mm axle will not work.supplied as pictured.