Ultra-fit spurs with the Balkenhol system. Large, coarse-toothed wheel. Spur length: 30 or 40mm. Easily adjusted to the foot's shape by slightly bending the spur. The Balkenhol system offers a unique fit and design. The spur straps are threaded through the spur at a 45-degree angle. A special recess on the inside of the attachment eliminates pressure on the rider's ankle and foot, ensuring the spur stays securely in place.