Our Mission: To protect, preserve and promote the natural integrity of Radnor Lake through land acquisition, environmental education and park support.
Chains up to 12 mm thick are generally portable: you can carry them around on your bike every day. The long ones will be really heavy though, so please check the weight. Above 12 mm the chains are more suitable as stationary locks: you would leave them wherever you lock your bike for long periods of time.
The difference between a regular tie and an extra-long one is three to four inches. Regular-length ties are normally 58/59 inches, whereas extra-long ones are usually 61/62 inches long. As a rule of thumb, take your height in inches, and add your necksize in inches to it. If the number exceeds 91 inches you are better off with XL neckties.