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Use mini bike cotter pins to keep parts firmly in place in mini bikes for your safety and riding comfort. Check out the various designs and uses at OMB Warehouse. Our best-selling mini bike cotter pins are the ones that have a practical hairpin style design that     ensures that most bolts are tightly fitted and fixed for a long time, improve stability, prevent rotation, and will not loosen during use, helping you to complete your work efficiently. These R-shaped mini bike cotter pins are made of high-quality stainless steel. Durable, corrosion-resistant, will not rust when wet, the surface is polished smoothly without burrs, and it is safe and does not hurt your hands. These cotter pins are easy to install. Simply insert the straight foot into the hole and press the bent foot down into the outer diameter of the shaft. This stainless-steel R-clamp has a long service life and can be reused. We also have the large and small jackshaft mini bike cotter pins. The large cotter pins have specifications of2.5 mm x 25 mm and fit M16 castle nut. Good for MB165 & MB200 Mini Bikes. The small cotter pin size is 1.5 mm in diameter and 20 mm in straight pin length.