---
product_id: 172652360
title: "Bike Rack Cross-Bar Adapter - Universal Top Tube Frame Mount for Car Racks - Adjustable 18-28in Bike Accessories for Step-Through & Suspension Frames - Tool-Free Installation, 45lb Capacity"
brand: "retrospec"
price: "VT17829"
currency: VUV
in_stock: true
reviews_count: 13
category: "Retrospec"
url: https://www.desertcart.vu/products/172652360-bike-rack-cross-bar-adapter-universal-top-tube-frame-mount
store_origin: VU
region: Vanuatu
---

# Tool-free setup in seconds Adjusts to 18-28" stems Supports up to 45 lbs bikes Bike Rack Cross-Bar Adapter - Universal Top Tube Frame Mount for Car Racks - Adjustable 18-28in Bike Accessories for Step-Through & Suspension Frames - Tool-Free Installation, 45lb Capacity

**Brand:** retrospec
**Price:** VT17829
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Elevate your ride—fit any frame, fast and flawless!

## Quick Answers

- **What is this?** Bike Rack Cross-Bar Adapter - Universal Top Tube Frame Mount for Car Racks - Adjustable 18-28in Bike Accessories for Step-Through & Suspension Frames - Tool-Free Installation, 45lb Capacity by retrospec
- **How much does it cost?** VT17829 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/172652360-bike-rack-cross-bar-adapter-universal-top-tube-frame-mount)

## Best For

- retrospec enthusiasts

## Why This Product

- Trusted retrospec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Adventure:** Robust alloy steel design supports up to 45 lbs, perfect for weekend warriors and daily commuters.
- • **Secure Adjustable Fit:** Spring tension system locks bikes with 18"-28" stem-to-seat lengths firmly in place.
- • **Effortless Installation:** Clicks into place without tools, so you hit the road faster and stress-free.
- • **Scratch-Proof Protection:** Durable coated hooks safeguard your bike’s finish, keeping it pristine ride after ride.
- • **Universal Frame Compatibility:** Transforms any hitch rack to fit step-through and full-suspension bikes effortlessly.

## Overview

The Retrospec Bike Rack Top Tube Adapter is a versatile hitch rack accessory designed to securely hold bikes with 18"-28" stem-to-seat measurements, including step-through and full-suspension frames. Featuring a tool-free, quick-click installation and protective coated hooks, it safeguards your bike’s finish while supporting up to 45 pounds. Engineered from durable alloy steel, this adapter transforms your existing bike rack into a universal powerhouse, perfect for millennial professionals who demand convenience, style, and reliability on every ride.

## Description

Our Retrospec Bike Rack Cross-Bar Top Tube Adjustable Adapter was engineered to give you the ability to mount bike frames with openings between 18”-28”, such as women's step-thru frames, full-suspension, and other unconventional designs. A built-in internal spring creates the tension needed to keep your bike safe and secure during travel. The durable plastic coated hooks ensure the paint on your bike frame is protected from any scuffs and scratches. Whatever your cycling destination maybe be, the Retrospec Bike Rack Cross-Bar Top Tube Adjustable Adapter will be sure your bike arrives safe and ready to ride!

Review: So easy - Works perfectly, went together easily and fit my bike.
Review: Seems Sturdy Enough, Whatever it is! - To be honest, I don't even know what this is used for. I bought it to attach to my bicycle cargo trailer because the attachment broke and I had no way of attaching it to my ebike. The usual attachments are so expensive so I saw this on sale and grabbed it! I'm sure it'll work just fine pulling my cargo trailer. Update: Nope, it doesn't pull my cargo trailer. It's quite dangerous to use it for that.

## Features

- COMPATIBILITY: Transform any hitch bike rack into a powerhouse that fits it all - from step-through frames to full-suspension bikes. No more struggles mounting unique bike designs (Not intended for e-bikes)
- QUICK & TOOL-FREE SETUP: Skip the hassle of complex installations. This crossbar adapter clicks into place in seconds, getting you and your bicycle accessories on the road faster than ever
- FRAME-FRIENDLY DESIGN: Protective coating on every hook keeps your bike's finish flawless. Whether you're hauling road bikes or beach cruisers, your frame stays scratch-free mile after mile
- ADJUSTABLE FIT MAGIC: Handles any bike with 18"-28" stem-to-seat measurements. The built-in spring tension system locks your ride securely, ready for every car bike rack adventure ahead
- TRAVEL-READY STRENGTH: Built tough to support bikes up to 45 pounds, this truck bike rack adapter keeps your wheels steady. Perfect for weekend warriors and daily riders alike

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0817M1S8Y |
| Best Sellers Rank | #5,119 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #119 in Cycling Accessories |
| Brand Name | Retrospec |
| Color | Black |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,760) |
| Global Trade Identification Number | 00810015702727 |
| Included Components | Adpater Bar, Installation Instructions |
| Is Foldable | No |
| Item Dimensions | 14 x 16 x 4 inches |
| Item Type Name | Retrospec Bike Rack Cross-Bar Top Tube Adjustable Adapter |
| Load Capacity | 45 pound |
| Manufacturer | Retrospec |
| Manufacturer Part Number | 3545 |
| Manufacturer Warranty Description | Limited Warranty |
| Material Type | Alloy Steel |
| Model Number | 3545 |
| Mounting Type | Hitch Mount |
| UPC | 810015702727 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Retrospec
- **Color:** Black
- **Global Trade Identification Number:** 00810015702727
- **Is Foldable:** No
- **Item dimensions L x W x H:** 14 x 16 x 4 inches
- **Load Capacity:** 45 pound
- **Manufacturer:** Retrospec
- **Material:** Alloy Steel
- **Mounting Type:** Hitch Mount
- **Vehicle Service Type:** Bicycle

## Images

![Bike Rack Cross-Bar Adapter - Universal Top Tube Frame Mount for Car Racks - Adjustable 18-28in Bike Accessories for Step-Through & Suspension Frames - Tool-Free Installation, 45lb Capacity - Image 1](https://m.media-amazon.com/images/I/71K-BMwiALL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ So easy
*by J***. on March 4, 2026*

Works perfectly, went together easily and fit my bike.

### ⭐⭐⭐⭐⭐ Seems Sturdy Enough, Whatever it is!
*by C***Y on January 10, 2026*

To be honest, I don't even know what this is used for. I bought it to attach to my bicycle cargo trailer because the attachment broke and I had no way of attaching it to my ebike. The usual attachments are so expensive so I saw this on sale and grabbed it! I'm sure it'll work just fine pulling my cargo trailer. Update: Nope, it doesn't pull my cargo trailer. It's quite dangerous to use it for that.

### ⭐⭐⭐⭐ The best for this price
*by H***S on April 22, 2025*

The product does what advertise but is not as fancy or flashy to the ones costing a lot more. In this case, the product came without a a bolt but was an easy fix. Its doing the job very well

## Frequently Bought Together

- Retrospec Bike Rack Cross-Bar Top Tube Adjustable Adapter
- Retrospec Lenox 2-5 - Bike Hitch Rack for Cars, Trucks, SUVs with 2” Hitch | Foldable Steel Frame with Anti-Rattle Adapter, Tie Down Cradles and Straps - Fits Most Frames
- SANNIX Reusable Bike Wheel Strap Adjustable Bike Wheel Stabilizer Straps Bike Rack Strap with Durable Hook (Black and Orange)

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**Shop now:** [https://www.desertcart.vu/products/172652360-bike-rack-cross-bar-adapter-universal-top-tube-frame-mount](https://www.desertcart.vu/products/172652360-bike-rack-cross-bar-adapter-universal-top-tube-frame-mount)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*