SAFE KEEPING FOR YOUR RIDE. MAKE SURE IT STAYS IN THE RIGHT HANDS BY USING A GIANT SECURITY DEVICE. Protect yourself against theft with Giant's variety of bike locks. Whether you prefer keys or combinations, Giant has you covered. With Giant's wide range of fenders and protectors you can protect yourself and your bike from inclement weather and chain rub; off-road, winter training or foul weather commuting - not a problem.