Description Before use, it is necessary to exhaust the air, as follows: 1. Open the cover of the upper pump oil cup (the upper pump is fixed in the faucet state) 2. Repeatedly pinch the brake handle of the pump more than ten times, then hold it tightly, then loosen the oil drain screw of the lower pump, and repeat the operation until there is pressure on the brake handle. If the handle is too soft and there is no pressure, proceed to the next step. 3. Open the air exhaust screw on the lower pump. At this time, do not pinch the handle. Oil will flow out of the air exhaust screw hole, and at the same time, bubbles will also come out (the oil cup of the upper pump should not be short of oil in this operation step). When no bubbles are visible, tighten the air exhaust screw. 4. If the effect is not obvious, repeat 2 and 3 Handlebar Inner Hole Diameter: 22MM Type: Right Material: Aluminum Alloy Color: Black Features: - Precision machined pivot bore to ensure a perfect fit. - Take your brakes performance to a higher level. - Levers are adjustable,two fingers short levers,hydraulic and clutch brake,stainless steel hardware. - Easy to mount and easy to use. - Adjustable reach system provides the perfect lever position for all riders. Handlebar Inner Hole Diameter: 22MM Reflector Seat Hole Position: M10 Type: Right Use Purpose: Brake Place of Application: - Fit for Rincon 650 680 2003-2016 / Foreman 400 450 500 1997-2016, - Fit for Rancher 350 400 420 2000-2016 / Recon 250 1997-2016, - Fit for 400EX / Off road beach vehicle / T.R.X 200 250 300 350 1985-2000 Product Weight: 340 G / 11.99 Ounces Product Dimensions (L*W*H): 280*120*70 MM / 11.02*4.72*2.76 Inches Package Weight: 340.0 G / 11.99 Ounces Package Dimensions (L*W*H): 280*120*70 MM / 11.02*4.72*2.76 Inches Retail Packaging: Yes, General Box Package include Package Including: 1 x Front Master Cylinder Levers / Right