Towing a Trailer with the GSD Gen 1

Contents

1. Frame-Mounted Method
   • What trailer hitches are compatible with the GSD frame?
   • Where do I mount the trailer hitch?
   • Can I use panniers or other accessories and tow a trailer at the same time?
   • Compatibility notes
2. Thru-Axle Method
   • Can I use panniers or other accessories and tow a trailer at the same time?
   • Compatibility notes
3. Always Pay Attention to Safety Guidelines

We know many riders chose the GSD to carry their little ones. In this article, we cover the two best methods to attach a trailer to your bike.

1. Frame-Mounted Method

For GSD S10 and S00

The GSD frame has already been tested for strength by EFBE Prüftechnik GmbH, one of Europe's leading bicycle test laboratories. But we wanted to go one step further and do one additional test to include a frame-mounted bike trailer.

So we've partnered with EFBE again to test the GSD frame according to EN15918, a European standard for trailer safety. In short, the GSD has exceeded the test requirements for a trailer of up to 53 kg attached to the rear mount of the bike frame.

(For reference, 53 kg is what you'd be carrying if you had two 18-kg kids in a 17-kg trailer.)

What trailer hitches are compatible with the GSD frame?

Many trailers come with a hitch cup designed to fit an M10 bolt. We have tested and can recommend the following trailer hitches for the GSD Gen 1 frame:

• Burley Steel Hitch (SKU: 960116)
• Thule Axle Mount ezHitch Cup (SKU: 20110720)

You don’t need an adapter for any of the brands mentioned above, but you may need additional nuts and bolts, depending on what comes in your trailer package.

Where do I mount the trailer hitch?

Using an M10 bolt, attach the trailer hitch cup to the GSD frame, on the same mounting point used for the Sidekick Lower Deck:

Can I use panniers or other accessories and tow a trailer at the same time?

It depends on the accessory. If using this method, please keep in mind that the left-sided Cargo Hold Pannier may interfere with trailer arm movement and should be removed. As an alternative, the smaller Cargo Hold 37 Panniers offer plenty of room for trailer arm movement.

If using this method, please keep in mind that the left-sided Cargo Hold Pannier may interfere with trailer arm movement and should be removed. The new Cargo Hold 37 Panniers that we've designed for the Tern HSD also fit the GSD and offer plenty of room for trailer arm movement.

GSD Gen 1 with Cargo Hold Panniers

GSD Gen 1 with Cargo Hold 37 Panniers

Compatibility notes

This method is compatible with:

• Yepp seat(s)
• Sidekick Wheel Guard
• Right-sided Cargo Hold Pannier
• Cargo Hold 37 Panniers

This method is NOT compatible with:

• Sidekick Lower Deck
• Left-sided Cargo Hold Pannier

2. Thru-Axle Method

For GSD S10 only
The Robert Axle Project offers a thru-axle that allows for even weight distribution when adding a kid trailer to your GSD:

• Robert Axle Project's 12 MM Thru Axle for Kid Trailer (SKU: KID216)

The KID216 thru axle is available online for USD 61.00 + shipping. And they ship internationally!

This product is compatible with several kid trailers, and you can find this information on the website, under Specification.

GSD Gen 1 with KID216 thru axle and a trailer

Can I use panniers or other accessories and tow a trailer at the same time?

Unfortunately this method limits the number of accessories you can use. See the compatibility section below for more information.

Compatibility notes

This method is compatible with:

• Yepp seat(s)
• Sidekick Wheel Guard
• Right-sided Cargo Hold Pannier
• Right-sided Cargo Hold 37 Pannier

This method is NOT compatible with:

• Sidekick Lower Deck
• Left-sided Cargo Hold Pannier
• Left-side Cargo Hold 37 Panniers

3. Always Pay Attention to Safety Guidelines

No matter what trailer or hitch system you choose, it's always best to test it yourself before using it to carry children, pets, or cargo. Pay particular attention to the trailer's arm angle; make sure it won't hit the GSD when maneuvering the bike.

In addition, always stay within your bike's max gross vehicle weight. The GSD has a MGVW of 200 kg (440 lb), and that means your whole setup—including bike, trailer, accessories, cargo, passenger(s), and rider—should not exceed that limit. The only exception is if your trailer has its own braking system.

One important reminder: To safely carry your loved ones, finding a compatible trailer is only the first step. Always follow the safety guidelines of the trailer manufacturer. Exceeding the trailer's weight limit or using it in ways it wasn't designed to be used may pose a serious risk, and should be avoided.

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Note: This article on trailer towing, along with other guides and how-to articles on this site are intended to serve only as a helpful resource for Tern bicycle owners. They are for informational and educational purposes only and should be used at your own risk. Consult with your authorized Tern dealer for professional advice and assistance specific to your bicycle.