Convert nonboost hubs to boost spacing quickly and securely. This adapter set lets you use existing wheels with newer boost frames without buying hubs or wheels. Key benefits and features Function: Converts front fork spacing from 15x100mm to 110mm and rear hub spacing from 12x142mm to 148mm (boost), enabling compatibility between older wheelsets and modern boost bikes. Kit contents: Includes 1 adapter, 2 washers, and 6 bolts — everything needed for a secure installation. Material and finish: Machined from aluminum alloy with an anodized surface that increases surface hardness and provides a durable black finish. Weight and performance: Lightweight design at just 27 g so it adds minimal mass while maintaining strength. Secure fit: Manufactured to exact specifications (front 15x100mm to 110mm / rear 12x142mm to 148mm) to ensure proper alignment and reliable mounting across compatible frames and hubs. Practical and costeffective: Avoids the expense of wheels when upgrading frames or standardizing wheelsets between bikes. Compatibility and use Designed for riders who need to adapt older 15x100 front and 12x142 rear hubs to modern 110mm front and 148mm rear boost standards. Suitable for a wide range of bikes and hub models that match the listed dimensions; maintain original hub functionality while fitting boost frames. Typical applications Upgrade scenario: Fit an older wheelset with 15x100/12x142 spacing to a newer boost frame (110mm front / 148mm rear) when upgrading your bike. Bikesharing or travel: Use one wheelset across multiple bikes with different spacing standards while traveling or riding with mixed equipment. Workshop spare/: Keep as a practical adapter to resolve compatibility issues quickly during maintenance or wheel swaps. What you get 1 adapter 2 washers 6 bolts Total weight: 27 g Material: anodized aluminum alloy Conversion specifications: front 15x100mm → 110mm, rear 12x142mm → 148mm This adapter set provides a durable, lightweight, and precise solution for converting hub spacing to boost standards while preserving your existing wheelset and simplifying upgrades.