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Rooftop Bike Racks category

Bike Frame Adapter

R-ADA-01

The Rola Bike Frame Adapter helps you carry bikes that don’t have a traditional straight top tube, including step-through and sloping-frame bikes. It fits between the seatpost and headset area to create a stable “carry bar” so the bike mounts more securely on mast-style carriers. With an adjustable length and a 20kg load rating, it’s a simple add-on that makes transporting different bike styles easier.

Compatible with the Rola Hitch Mount Bike Carrier range (2, 3 & 4 bike).

$59.00 (RRP)
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Item number: R-ADA-01

Australia Wide Installers

Specifications Overview Downloads
Product Weight 1.05kg
Product Dimensions 63 x 4 x 9cm

Rola Bike Frame Adapter

Creates a stable carry point

Forms a straight mounting point between the seatpost and the front of the frame, helping awkward frame shapes sit level and secure on mast-style bike carriers.

Durable and travel-ready

Lightweight, with a protective coated finish for regular use on the road and backed by a 5-year warranty.

Fits a wide range of bikes

Adjustable from 588mm to 792mm, with sizing limits to help confirm fit:

  • Seatpost diameter: up to 30mm
  • Headset clamp diameter: up to 55mm
  • Load rating: up to 20kg

Key Features

  • Helps carry step-through and sloping-frame bikes on mast-style carriers
  • Creates a straight, stable mounting point
  • Adjustable length: 588mm to 792mm
  • Seatpost fit: up to 30mm diameter
  • Headset clamp fit: up to 55mm diameter
  • 20kg load rating
  • Durable coated finish with 5-year warranty

FAQs

What bikes is this adapter best for?

Bikes without a standard straight top tube, including step-through frames and frames with heavily sloped or unusual tube shapes.

How does it attach to the bike?

It clamps between the seatpost and the front of the frame near the headset area to form a straight carry bar.

How do I check if it will fit my bike?

Confirm your seatpost is 30mm diameter or less and the headset clamp area is 55mm diameter or less, then ensure the adjustable length range (588–792mm) suits your frame.

What’s the maximum weight it can support?

The adapter is rated to 20kg. Always check your bike carrier’s per-bike rating as well.