TiGr Titanium bike locks. Ti is the chemical element for Titanium, a strong and lightweight complete corrosion-resistant metal. The TiGr lock has a unique design and stands out for its ability to lock both bicycle wheels and frame to a post. The TiGr bow lock is also easy to carry on most bike frames without the annoying rattle common with most U locks.
Oh, and did we mention "Light"? The 0.75" TiGr bike lock weighs 16oz or 440 grams. Try that with a U-Lock or chain.