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ALLEN 103DN 3-Bike Trunk Rack Instructions

Safety and installation guidelines for the Allen 103DN 3-Bike Trunk Rack to ensure secure transport of bicycles on your vehicle.

Table of contents

Product Overview and Safety

The Allen 103DN is a trunk-mounted bicycle rack designed to carry up to three bicycles. Safety is the primary concern when using this equipment. Improper installation or failure to follow these guidelines can result in the rack or bicycles falling onto the road, potentially causing serious accidents and bodily injury. Always ensure the rack is compatible with your vehicle before attempting installation.

Installation Guidelines

Proper mounting is essential for safe operation. The top hooks must be completely secured over solid metal edges at the top or front of the trunk lid or rear door. Never attach these hooks to rain gutters, roof racks, vertical glass, or rubber/plastic moldings. The bottom feet of the rack must be placed on a rigid surface of the vehicle, never on glass, and the bottom foot assembly must be fully extended to provide stability.

Usage and Capacity

The rack has a maximum capacity of 100 lbs (approximately 45 kg) and is designed to carry a maximum of three bicycles. It is not suitable for tandems, mopeds, or recumbent bicycles. When loading, ensure that the vehicle's tail lights remain visible to other drivers. Bicycles must be securely tied to the rack using the provided tie-downs or additional straps if necessary to prevent movement during transit.

Driving and Maintenance

When driving with the rack installed, exercise caution, especially when navigating over bumps or uneven road surfaces. The rack is strictly for road use and should never be used off-road. Do not use the rack on trailers or mount it on the front of any vehicle. Before every use, inspect the rack thoroughly. Do not use the equipment if any part is damaged, worn, or missing. If you identify any issues, contact the manufacturer for replacement parts. Always drive conservatively to ensure the safety of your bicycles and other road users.

Manufacturer information

Allen Sports

Brand profile

Practical help

Common problems

Rack parts are damaged or missing

Do not use the rack and contact R. A. Allen Co., Inc. for replacement parts.

Bicycles are moving during transit

Ensure bicycles are securely tied to the rack using tie-downs or additional straps.

Before use

  • Verify the rack is compatible with your vehicle.
  • Ensure top hooks are secured to solid metal edges.
  • Confirm bottom feet are on a rigid surface (not glass).
  • Check that the bottom foot assembly is fully extended.
  • Ensure tail lights remain visible.
  • Check that all parts are free from damage or wear.
  • Confirm total weight does not exceed 100 lbs.

Specs in practice

Max Capacity
100 lbs (approx. 45 kg) total weight limit for the rack.
Bike Capacity
Maximum of 3 bicycles.

Model compatibility

  • Never use on trailers.
  • Never mount on the front of vehicles.
  • Do not attach hooks to rain gutters, roof racks, or glass.
  • Not suitable for tandems, mopeds, or recumbents.

Manual page author

Michael Turner

Technical manual editor

Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.