12 mm Replacement Track Spikes — Better Grip for Grass-Track Training

The right spikes for the right surface. Grip matters!

Many spiked running shoes come supplied with 7 mm spikes as standard. These can be suitable for synthetic tracks, but they may not provide sufficient penetration and grip on grass, particularly when the surface is soft, damp or slippery.

For athletes training on grass, 12 mm replacement spikes can provide additional penetration and traction, helping reduce unwanted slipping during acceleration, sprinting.

At The Sprint Stable, we believe good coaching includes paying attention to the small details that help athletes train safely and effectively. Choosing suitable spikes for the surface is one of them.

Why Consider 12 mm Spikes?

• More penetration into grass: The additional length can help the spike engage with softer ground.

• Improved traction potential: Better grip can help reduce slipping when accelerating and pushing off.

• Designed for training needs: A practical replacement option for compatible spiked shoes used on suitable grass surfaces.

• Easy replacement: Replace worn, damaged or unsuitable spikes when your shoes and spike plate allow it.

• Pack of 16: Supplied as a pack of 16 replacement spikes.

Important: Match Your Spikes to the Surface

A spike that works well on a synthetic track may not be the best choice for grass. When grip is inadequate, athletes may slip or unconsciously alter their stride and force application to compensate.

These changes can affect how force is transmitted through the foot, ankle, calf and Achilles tendon. Appropriate footwear and gradual training progression are important considerations for athletes who want to reduce avoidable injury risks.

Don't assume that the 7 mm spikes supplied with your shoes are ideal for every surface. Check the conditions, your footwear manufacturer's guidance and the rules of your training venue before changing spike length.

Product Specifications

• Product: Replacement track-shoe spikes

• Length: 12 mm

• Thread diameter: Approximately 5 mm, as specified by the supplier

• Material: Supplier description specifies steel

• Pack quantity: 12 spikes

• Use: Compatible track and field shoes, subject to spike-plate and surface requirements

• Brand: Unbranded

Before ordering: Check that the thread diameter and spike shape are compatible with your shoes. The supplier's listing contains conflicting material information, so the exact construction should be confirmed.

Research and Further Reading

Research confirms that footwear, running surfaces and spikes can influence running mechanics and performance. For example, a study published in 2025 examined the effects of advanced footwear technology spikes on sprint performance and lower-limb loading.

Read the study here:

https://www.tandfonline.com/doi/full/10.1080/19424280.2025.2458322

This research does not directly establish that 7 mm spikes cause injuries on grass or that 12 mm spikes prevent them. It does support the importance of considering footwear-related loading and individual responses.

Get the Right Grip for Your Training

12 mm replacement spikes — a practical option for compatible shoes and suitable grass-training conditions.