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Shimano CX70 Front Derailleur

Shimano CX70 Front Derailleur
  • Cable Pull: Top-pull
  • Cable Pull: Bottom-pull
$52.99 - $54.99
Clamp Diameter: Select clamp diameter
Cable Pull: Top-pull
Please select options Unavailable


Shimano's CX70 Front Derailleur was designed from the ground up for the uiquely punishing world of cyclocross. Mud-shedding plates fight back against ice and debris build up. Reinforced pins stiffen the plates for fast shifts under the worst conditions, while special attention has been paid to the derailleur pivots and arms so they shed mud and ice. The cage size is optimized for the close-ratio chainrings common on cyclocross bikes. The CX70 Front Derailleur is available as either a top or bottom pull model to suit your bike.

Capacity is calculated by subtracting your smallest chainring's tooth count from the largest chainring's tooth count. Example: 46/34/24 chainrings: 46 - 24 = 22-tooth capacity.

Bottom-pull derailleurs are used when the cable is routed underneath the bottom bracket and up through the cable clamp. Top-pull derailleurs work with frames where the cables are routed down from the top tube.

Your seat-tube diameter determines the needed derailleur clamp size.

Part Numbers

Option UPC MPN Store SKU
Top-pull / 31.8/28.6mm 689228680739 IFDCX70TBSM SHI72642709R
Top-pull / 34.9mm 689228680685 IFDCX70TBL FRO38241221L