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Chrono Inks 9 Evaluation Review

¥28,600(including tax)
  • This long-selling model is synonymous with MIZUNO
    One solution for short-distance spikes designed by MIZUNO
  • Fixed 8 pins that emphasize ground contact
    Firmly grips with fixed pins that haven't changed since release
  • Feels just like being barefoot
    Thin sole and MIZUNO's technology allow you to feel the ground
  • Pioneer of the skeleton upper
    Lightweight due to the visible skeleton design
  • All-purpose short-distance spike
    Just the right rebound makes it easy to use for hurdles and more
Spike Name
Chrono Inks 9
Price
28,600 (including tax)
Weight
141g (one foot, size 26.0cm)
Applicable events
100m, 200m, 400m, 110mH, 400mH
Compatible environment
All-weather specific
Spike Pins
7mm×7, 3mm×1
Release year
2021
Country of Origin
Japan
Shoelace type
With laces, with strap
Upper Material
Artificial leather, synthetic fiber
Sole Material
Synthetic sole
Size
22cm ~ 29cm
Competition level
advanced
Recommended for such people
- Multi-sprinter for 100m to 400mH  
- Those who want to aim for good records at national-level competitions  
- Athletes confident in their strength and sprinting skills  
- Athletes currently using middle-distance spikes but feeling unsatisfied  

This is a versatile spike that can handle any distance in short-distance events.  
Recommended for advanced users with sufficient muscle strength to withstand the rebound, who land on their toes and bounce back with the ball of their foot.  
That said, it is not as focused on rebound as the Adizero Prime SP or Asics Jet Sprint, so it also offers stability during runs.  
It is designed to fit Japanese foot shapes, making it suitable for those with slightly wider feet.

Features

MIZUNO's masterpiece long-seller

One of the major features is the skeleton structure that forms the upper with just the "skeleton of the shoe," as seen in the photos. By trimming away all but the essential parts of the upper, it achieves remarkable lightweight. The Dyneema material enables the skeleton structure. Using the lightweight yet extremely durable Dyneema material, the upper is very sturdy even with just the skeleton. Therefore, you can focus on running without worrying about shifting or damage during high-speed sprints. It also comes with an external belt, so if you prioritize fit, the Chrono Inks is recommended. The fabric is made quite thin and is designed with the concept of "running with a barefoot feeling."
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Shoe design suited for Japanese feet

The width of the shoe is made slightly wider. Therefore, even if you have felt cramped in width before, you can wear these spikes comfortably. The outer material is enamel-like, repelling rain and not becoming too heavy, making it easy to wear even on rainy days. (Since it has a skeleton design, be cautious of moisture inside.) There is also a belt on the heel side, and the structure allows the laces and the inner belt to work together for a complete fit. As a result, there is little concern about gaps at the heel, and it is designed to fit various foot shapes. The belt wraps around the upper, ensuring a secure fit even for narrow feet.
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A sole that requires skill in weight transfer

The plate adopts the CHRONO PLATE Type-SA (Sprint All Round Type) specialized for high-speed sprints. The pins are arranged in a 1-2-4-1 pattern from the toe, all being fixed pins. The lengths are short at 7mm and 3mm, allowing for smooth transitions from ground contact to takeoff without feeling discomfort or friction from the pins. The sole is made of nylon, making it lightweight, thin, and durable. Its high rebound makes it easy to achieve short ground contact during high-speed sprints. Conversely, it places a significant burden on the feet, so athletes with insufficient strength or those practicing outside of high-speed sprints should be cautious of injuries.
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Design that considers ground contact as important

The plate is relatively gentle and flat, but it features different textures and rebound properties in various areas, which is also characteristic. The outer and central parts specialize in assisting weight transfer during ground contact. Meanwhile, the inner toe side has a high-rebound plate that generates power during takeoff. This design is thought to be based on the concept of running as if barefoot. It is rare to have a sole with such finely differentiated performance in each area, making it optimized for short distances. To maximize the plate's effect, efficient weight transfer from ground contact to takeoff is essential. Therefore, if you lack grounding skills or feel you are not receiving power from the ground while running, it is recommended to practice with intermediate-level spikes that excel in ground support.
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