Bought this for my Motorized Specialized Hardrock. I upgraded to Fatboy Electra Tires that were much taller than originals. My original kickstand is a 285mm. This one will work on some really tall bikes, I say that b/c I'm only one set of holes down from the shortest setting. Bottom half of this is PLASTIC. Lightweight but I wonder about durabiltiy. My main concern was the bottom half falling off. Every adj. I have tried I have lost the bottom half of. I am reasonably certain this will not happen as there are locknuts (2) holding it on. It is very attractive and has very smooth action.