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Bontrager Sonic Women's Road Shoe

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$99.99 - $139.99 $139.99 Model 21720
Efficient, full-feature women’s road cycling shoe with roomy design for all-day comfort.
Search store availability

Constant comfort. Subtle strength.

Unlock your potential and go farther with the Sonic Women's road shoe. Equal parts stiff and comfortable, compatible with both 2-bolt SPD-style and 3-bolt cleats, this shoe is ready for anything.

Product details

  1. inForm Race last offers a slightly roomier, high-performance fit
  2. Nylon composite Bronze Series sole
  3. PowerTruss sole design improves stiffness without adding significant weight
  4. Boa L6 dial for precise adjustment
  5. Stiffness index - 7 of 14
  6. Compatible with 3-bolt and 2-bolt SPD-style cleats (2-bolt mounting plate sold separately)

More options

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Specifications

Gender Women
Cleat compatibility SPD 2-bolt and SPD SL 3-bolt
Closure type Dial
Sole fiber content 85% Nylon / 15% Fiber
Upper fiber content 56.9% PU / 10.5% Polyester / 32.2% Nylon / 0.4% Steel
Liner fiber content 100% Polyester
Bag included No
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

Sizing & fit

 

US Men

US Women

UK Men

UK Women

CM

Heel to toe (cm)

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