BSD NASA Rim Color:Chrome 4130 Chromoly heat treated arms

4130 Chromoly heat treated arms & spindle

8 mm (15/16")

: Runs smaller than usual

The lightest version weighs only 324 grams

Height: 4mm - 27mm

BSD NASA Rim Color:Chrome 4130 Chromoly heat treated armsThe NASA rim is designed to be stiff both laterally & radially. Based on an I beam design w extra thick tapered sidewalls, tapered spoke seats, cross over lacing & a curved inner strut. The NASA rim is constructed from space age 6066 T6 aluminum which is much stronger than the cheaper 6061 alloy traditionally used in most rims (+34% tensile strength vs 6061 T6). KEY FEATURES 6066 T6 aluminum I beam design welded rim Extra thick tapered sidewalls Extra