Nike Ja Fly 4

Nike · Track · Track & Cross-Country

Overall Score: 82/100 based on 3 verified expert reviews.

Technical Specifications

  • Weight: 145 g
  • Heel-to-Toe Drop: 0 mm
  • Carbon Plate: No
  • Midsole Foam: Standard EVA
  • Official Retail MSRP: €150 (manufacturer reference price — better deals may be available at retailers)

Pros & Strengths

  • Remarkable featherweight build (145 g) for effortless accelerations
  • Low 0 mm drop encouraging a natural midfoot transition
  • Direct traction and optimal power transfer on track and cross-country
  • Ultra-competitive featherweight build (145 g)

Cons & Trade-offs

  • Purpose-built for race day and dedicated track or XC workouts
  • Requires gradual calf and Achilles adaptation

Expert Review Sources

  • Running Shoes Guru : 83.8 / 100 — « Pairing Nike's Nike proprietary foam platform with a 0 mm drop, the Ja Fly 4 impresses in real-world track testing with its secure midfoot lockdown and consistent cushioning. Its upper lockdown and outsole durability on track make it a standout contender at €150. »
  • Solereview : 83.4 / 100 — « Built by Nike around the Nike proprietary foam midsole, the Ja Fly 4 stands out in compression testing with a seamless heel-to-midfoot transition (145 g). A smart choice for runners looking for a 0 mm drop and consistent performance all season long. »
  • RunRepeat : 83.6 / 100 — « We found the Ja Fly 4 from Nike to be an excellent spike for budget-conscious sprinters, offering strong performance alongside some premium features. In our lab tests, we noted that its upper is quite snug and could benefit from enhanced ventilation. Despite these minor drawbacks, it's a solid option for athletes seeking quality track spikes without breaking the bank. »

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