Accurately measure spokes lengths and adjust hubs for 13 inch bike wheel with this strong steel gauges, ensuring precise wheel building and best ridings Crafted from strong strength steel, this 34cm gauges resists erosion and serves multiple functions, including wheel truing and hub centering for smooth maintenance Use in homes workshops, bike shops, or outdoor track to quickly check spokes tension, wheel wobble, and maintain top cycling efficiency Its marking and small design enable easy portability while accuracy for wheel building tool and bike maintenance essential designs for bike repair man, cycling enthusiasts, and DIYers search professional tool to assemble or repair wheel with confidence