Yakima TubeTop Adapter – Bike Frame Crossbar for Mast-Style Hitch Racks

Transport Any Bike with Confidence

Stop struggling with unconventional bike frames and get on the road faster. The Yakima TubeTop Adapter is the essential solution for mounting “funky” top-tubed bikes—including step-throughs, kids’ bikes, and full-suspension mountain bikes—to your mast-style hitch rack. By creating a temporary, level top tube between your seat post and stem, it ensures a secure, balanced fit every time.

Visual & Functional Excellence

Constructed with high-strength, oversized diameter tubing, this adapter provides superior stability. The large molded collars protect your bike’s finish at the contact points, while the anti-rotation inserts keep the bike from shifting during transit. Whether you are using a single or dual-arm mount, the TubeTop ensures your ride stays level and safe.

• Versatile Compatibility: Makes odd-shaped frames compatible with most mast-style hitch racks.
• Quick Installation: Securely attaches to seat post and stem in seconds.
• Rock-Solid Stability: Oversized tubing and anti-rotation inserts prevent swaying.
• Frame Protection: Soft, molded collars prevent scratches on the stem and seat post.
• Universal Fit: Adapts to a wide range of bike geometries and sizes.

Specifications

• Brand: Yakima
• Product Style: Hitch Rack Frame Adapter
• Compatibility: Single and dual-arm mast-style racks