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Details and Specs:
Premium 1948 Spline-Drive Cranks
The Premium 1948 SD (Spline Drive) cranks are a bossless version of the 1948 cranks, designed to be used with spline drive chainwheels only. Features 4130 chromoly arms with machined chainwheel interface, a hollow heat-treated chromoly spindle with hollow spindle bolts and a 6 spoke Premium chainwheel with 19mm 48 spline center bore, eliminating the need for a sprocket bolt. RHD/LHD compatible. Available in 25T or 28T.
Note: Includes arms, spindle, chainwheel, and bolts only.
Spindle: 19mm Hollow Chromoly Spindle Bolts: 12x1mm Hollow Flush Mount (x2) Spindle Splines: 48 Sprocket Bolt: N/A - Compatible with Spline Drive chainwheels only. Weight: 25.5 oz (29.1 oz w/ 25T chainwheel)
Dans Comp offers several choices of BMX Bottom Brackets to complete your crankset.