Chain wheel made to fit the shape of a Japanese body.
The crank (chainwheel) is one of the most important parts for Japanese rides comfortably and safely.
The short crank length, narrow Q factor, well-balanced tooth count, and the demands are simple, but it is designed to fit the petite Japanese body shape that is difficult to realize when seen on the global average.
PCD:110mm/74mm
Two piece crank (B.B)
Chainline: 43.5mm
Q Factor: 5.7 inches (143.8 mm) (without washer: 5.5 inches (139.8 mm)
Compatibility: SHIMANO9S/10S&SRAM10S, SHIMANO10S/11S&SRAM10S.
Weight (catalog value: 25.5 oz (750 g) (main body 5.5 inches (140 mm) reference value)
5 Pins: SL Model/ SL / BK Model/ BL
Accessories: 0.08 inch (2 mm) thick left and right pedal mounting washers included.
Please check the frame compatibility when installing.
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Product specifications, logo design, etc. may be subject to change for product improvement.
We also cannot answer measurements or personal fit that the manufacturer does not announce.