Top of the line track crank using Sugino's MB608-II external BB (fit English BB shells) and an improved ID24 axle. The new axle of the DD2 is designed for optimal stress distribution and has more corrosion resistance than before. Also has a bolt design that makes bearing pressure adjustment easier.
– 144BCD 48t Zen chainring
– Sealed cartridge bearings
– Chainline: 42mm
– Compatibility : 1/2" x 1/8" chain
(Direct Drive models are not NJS-approved products)