Will a rear mounted bike seat be a solution for you and your family?

Rear child bike seats are a very versatile design and are compatible with a wide range of bike types.  However, they can not be attached to full suspension mountain bikes or carbon frames/seat posts.

A Rear Seat has two options for mounting to your bike:

Frame Mount to your bike frame – the part of your frame called the seat post tube

Carrier Mount onto a rear carrier


Detailed info on the BoBike Rear Frame & Carrier Seat coming December 2019… you can view the Click & Go carrier mount system

The frame clamp for the BoBike seat requires 8cm of clear space on a 28 to 40mm diameter round seat post.

Is the FRAME Mounted Seat the right solution for YOU?

This rear seat is called the Yepp Maxi and it requires an attachment clamp to be mounted onto the seat post tube of your bike. Please watch the video.

The frame size of your bike needs to be 51cm or more. To measure the size of your bike frame place your tape measure between the centre of the crank, up to the top of your seat tube (do not measure any of your seat post).  See photo below for guidance. This frame size ensures that the centre of gravity of the child seat is not more than 10cm behind your rear wheel axle. This will prevent your bike from rearing up/tipping backwards with the weight of your child.

Measuring your bike frame. Yepp Maxi Frame Mount. goRide

Measure your frame size from the top of the seat tube to the middle of your crank

You also need at least 12.5cm of clear space on your seat post tube for the clamp to attach onto and a tube that has a diameter between 28-40mm.  Ideally this space should be near the middle of your tube as the attachment needs to clear your rear wheel by 4cm or more.

12.5cm of clear space. Yepp Maxi Frame Mount. goRide

Your seat post tube needs 12.5cm of clear space ideally near the middle

Yepp recommends a bike with a wheel size 26- 28 inches – this along with a frame size of 51cm or more will give you the required wheel clearance of 4cm from the top of your wheel to the bottom of the child seat.  

Note: 29inch wheels will not allow enough clearance for a frame mount rear bike seat.

Yepp Maxi seatpost 4cm space above wheel

For safe use of the Yepp Maxi frame mount seat you need 4 cm clearance over the rear wheel

Call us 0800 443377 we are here to help

Is the CARRIER Mounted Seat the right solution for YOU?

This rear seat is called the Thule Yepp Maxi Nexxt and it requires a carrier to be attached to your bike. It attaches by clamping around your carrier.  Your carrier must have a load capacity of up to 25kg and can be between 110 to 170mm wide with rail diameters of 11 to 16mm.


Yepp maxi Next Clamp v2

There are lots of different types of bike carriers.  To attach a Thule Maxi your carrier will need to be able to take a load up to 25kg.

Rear bike carrier attachment to rear seat stays & rear dropouts. goRide

Topeak Explorer Rear Bike Carrier – load capacity up to 30kg. Two styles are available

  • carrier for bikes with disc brakes
  • carrier for bikes without disc brakes (rim brakes)
Kids Bike seat attached
Urban bike and Yepp Maxi Nexxt Carrier mount

NOTE: Mounting a Frame Mounted seat over the top of your carrier would also be an option if your bike meets the frame mount requirements.

Call us 0800 443377 we are here to help

get Ready and goRide – Will a Rear Mount Kids Seat fit your bike?

Thanks for reading. Used together our stories, resources & products support you to achieve and develop as a rider.

Related Resources:

Will a Front Mount Seat Fit on Your Bike?

Kids Bike Seat Buying Guide

goRide helps you find your riding SMILE.  Now it’s your turn….Contact goRide. Your thoughts, comments or feedback will make us SMILE.

Other resources to help make you SMILE when you goRide

Riding gear
Ride more places
Types of Riding
Women and families learning