KCNC Lite Wing Folding Bike Bicycle Seatpost for Dahon use 33.9mm 550mm Gold

KCNC Lite Wing Folding Bicycle Bike Seatpost   Why AL7050,not AL6061?   On the same weight,the stiffness of AL7050 is 37% stronger than AL6061.   On the same stiffness,the weight of AL7050 is 11% lighter than AL6061.   Therefore,AL7075 seatposts are safer than AL6061 bars cause' they are stronger and hard to bend.   That's why KCNC choose the material of AL7050 and of course its price is higher than AL6061 posts you see in the market.   Material: AL7075-T6 tube anodized Color:Gold    Length:550MM    Diameter:33.9mm    Screws:M6x37mm and M6x47mm stainless bolts   Offset:0 mm Weight: aprox.257g The limit of rider's weight:100kg   For Folding bike use