Delta Thru-Axle Fork Mount Lockable Fork Mount, Heat-Treated Aluminum, Fits 12mm & 15mm Axles 100–150mm

Delta's Thru-Axle Fork Mount secures bicycles by replacing the front wheel with a rigid fork block that accepts 12mm and 15mm thru-axles, plus spacers for 100–150mm hub widths including fat tire setups.

This compact, heavy-duty fork mount converts any flat surface or compatible roof/bed adapter into a reliable bike transport block. Built from heat-treated aluminum and supplied with adapters and spacers, it allows you to lock the bike to the mount using only the bike’s existing axle, minimizing contact with the frame and simplifying loading for a wide range of bike styles.

How does this fork mount handle different axle diameters and hub widths?

The mount includes interchangeable adapters for 12mm and 15mm thru-axles and a set of adjustable spacers to accept hub widths from 100mm up to 150mm. An easy-to-read marking system helps set the correct width quickly, and the block clamps firmly to the axle so your fork sits centered and stable.

• Includes 12mm and 15mm axle adapters for common thru-axle types
• Spacers accommodate hub widths between 100mm and 150mm
• Marking guides simplify width adjustment and repeatable setup

Will it work with fat bikes and wider forks?

Yes — the Delta fork mount supports fat bike axle standards up to 150mm and has room to accept wider fork dropouts. The design keeps the bike secure without forcing contact on the frame, which preserves paint and reduces strain on delicate finishes.

• Compatible with 125mm, 145mm and 150mm fat-bike hub widths
• Spacers and adapters included to fit oversized dropouts
• Rigid clamp design limits unwanted movement when driving

How does it attach to my vehicle or rack system?

The block mounts to any flat surface or standard roof rack using the included adapter hardware. Whether you’re installing it on a roof tray, truck bed, or custom flat platform, the mount bolts down quickly and gives a stable anchor point for the bike’s fork.

• Mounts to flat surfaces and common roof rack platforms
• Supplied fasteners and adapter plate for easy installation
• Low-profile footprint preserves headroom on roofs and beds

How durable and safe is the construction?

Manufactured from heat-treated aluminum, the block is engineered for stiffness and long service life while resisting corrosion. Delta’s design minimizes contact with the bike frame and relies on the axle for load transfer, reducing wear on paint and sensitive frame tubes.

• Heat-treated aluminum body for strength and longevity
• Minimal frame contact to protect finishes during transport
• Backed by Delta’s industry track record and limited lifetime warranty

Who is this for? Riders who need a dependable, adaptable fork mount for transporting modern bikes — from standard road and gravel bikes to fat-tire and modern thru-axle mountain bikes. If you want a compact, low-profile mounting block that fits a wide range of axle sizes and hub widths and installs on flat platforms or roof racks, this Delta fork mount is designed to be a long-lasting, versatile transport solution.