TK143-OS 53/39AA
．Length - 165mm, 167.5mm, 170mm, 172.5mm, 175mm
．BCD - 130mm
．Chainring - 53/39AA
．Chainline - 43.5mm
．Crank Finish - Forged Alloy 6061/T6, High-polish Ti, Silver, Black Anodized
．BB Cups - BB -1.37x24/68mm
．BB Axle - Cromoly SCM 435
| *AA: | Outer Chainring - | Press Alloy |
| inner Chainring - | Press Alloy |
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TK143-OS 56G4
．Length - 165mm, 167.5mm, 170mm, 172.5mm, 175mm
．BCD - 130mm
．Chainring - 46, 48, 52, 56, 60T
．Chainline - 45mm
．Crank Finish - Forged Alloy 6061/T6, High-polish Ti, Silver, Black Anodized
．BB Cups - BC-1.37x24/68mm
．BB Alxe - Cromoly SCM435