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  1. Bike Accessories
  2. Thule
  3. Child Seat
  4. Handlebar Stem Mount
  5. Front Mount
  6. 9 Months to 3 Years
Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange

Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange

Item # TH12020104
Our Price: $135.94
Bike Accessories
Shipping Weight: 8 lbs
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Designed for everyday rides, the Thule Yepp Mini child bike seat allows your child to sit in front of you while you ride. The comfortable and sturdy seat ensures a happy rider with a happy parent. 1-800-940-8924 to order Thule bike accessories part number TH12020104 or order online at Free expert support on all Thule products. Great prices and Fastest Shipping for Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange. Bike Accessories reviews from real customers.
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  • Used (1)

Thule Bike Accessories - TH12020104

  • Child Seat
  • Handlebar Stem Mount
  • Thule
  • Front Mount
  • 9 Months to 3 Years
  • Orange
  • 33 lbs

Designed for everyday rides, the Thule Yepp Mini child bike seat allows your child to sit in front of you while you ride. The comfortable and sturdy seat ensures a happy rider with a happy parent.


  • Child bicycle seat is designed for everyday rides
  • Easily mounts on the front of your bike with included handlebar stem adapter
    • Fits steel quill and most ahead stems
    • Adapter for wider ahead stems sold separately
  • Safety features
    • Childproof safety buckle and sturdy foot straps
    • Steel frame with EVA seating and polypropylene parts
  • Comfortable design
    • Adjustable harness straps, footrests allow bike seat to grow with your child
    • Padded, 5-point shoulder harness
    • Soft, shock-absorbing seat
  • Convenient extras for parents
    • Easy-to-clean, water-repellent material
    • Seat locks securely onto bike adapter to prevent theft


  • For children ages: 9 months to 3 years
    • Note: Consult pediatrician for child under 1 year old
  • Weight capacity: 33 lbs
  • Seat weight: 7.7 lbs
  • 5-Year warranty

Yepp Mini Stem Fit

Bike Fits:

  • Compatible with steel quill stems with a diameter of 0.83" to 1.10" (21-28 mm) and ahead stems with a diameter of 1-1/8".
  • Some bikes with wider ahead stems may require an additional adapter (sold separately).

The Thule Yepp Mini front mount child bike seat allows you to take your child along on all your biking adventures. The seat's soft and sturdy construction ensures a safe and comfortable ride.

Easy Installation and Removal for Stress-Free Biking

The included SlimFit adapter fits around the stem of your bike offering a secure location for the Thule Yepp Mini to mount. The bike seat features a latch and security button on the bottom of the seat for instillation. This two-step process ensures the bike seat is securely attached and cannot detach during rides.

Yepp Mini two-step safety attachment

The Yepp Mini includes an integrated barrel-lock on the seat to deter theft while you're away from the bike. Leave the SlimFit adapter bracket on your bike so you can easily attach the child seat the next time you take your baby for a ride.

Thule Yepp Mini Lock

An additional adapter bracket (sold separately) can be installed on a second bike to make it easier for 2 people to share carrying duties.

Thule Yepp Mini Bike Seat Grows with Your Child

The adjustable seat harness straps and footrests allow you to customize the bike seat's fit for your child. The harness straps can be lengthened easily to fit over a bike helmet. The footrests raise or lower depending on the height of the passenger, and the foot straps adjust to fit growing feet.

Thule Yepp Mini Adjustable Foot Straps

Safe Child Bike Seat Gives You Peace of Mind

The Thule Yepp Mini bike seat is designed with your child's safety in mind. The seat's 5-point harness has a childproof buckle, so your child can't accidentally undo the harness.

Thule Yepp Mini Safety Harness

The seat is constructed with a robust steel frame but utilizes EVA seating and polypropylene parts for a softer ride.

Thule Yepp Mini Child Bike Seat

Comfortable Child Bike Seat Keeps Your Toddler Happy

Thule's thoughtful design details make this child bike seat super comfortable. The shoulder harness is padded to prevent the straps from cutting into your child's neck and shoulders.

Thule Yepp Mini Harness Adjustment

The handlebar gives your child a place to hold on and helps them balance as you travel on the bike.

Thule Yepp Mini Handlebar

The water-repellent seat makes it easy to keep the seat clean and dry. Holes throughout the seat allow rainwater or other liquids to quickly drain from seat and also promote air ventilation during warmer rides.

Lots of helpful accessories (sold separately) are available for your Thule Yepp Mini bike seat. Add a padded sleeproll to give your child a place to rest their head; also available with removable plush Miffy toy. Or attach a clear windshield that blocks bugs and wind making the ride more enjoyable for your little one.

12020104 Thule Yepp Mini Child Bike Seat - Front Mount - Orange

Installation Details TH12020104 Installation instructions

Video of Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Thule Bike Accessories - Child Handlebar Mount Bike Seat - TH12020104

Mike: Hi there. I'm Michael with Today, we're going to take a quick look at the Thule Yepp mini child bike seat. This is going to be a very easy and convenient way to take your little one on your frequent bike rides with you. This is going to mount on the front of your bicycle. So unlike some of the other bike seats that mount behind you, this is going to allow you to keep an eye on your little one throughout the whole trip.

And it's going to give them a much better view as well. So they can see what's coming and be more engaged with the ride, rather than just looking at your back the whole time.This is designed to have a weight capacity of 33 pounds. So it's going to be great for those little ones that are nine months up to three years of age that fall into that weight category. Keep in mind, if you do have a little one that's younger than a year, you will want to make sure that your pediatrician clears them to ride along with you. But if they are ready to go, this is going to be a great option.It's very comfortable and very safe.

So should be a good time for everyone. This is going to mount onto your bicycle's handlebar stem. This is going to fit with your steel quill and most ahead stems. If you have a steel quill stem, it's going to work on your 0.83 inch up to a 1.10 inch diameter steel quill stems. And if you have a head STEM, it's going to work with your one and one eighth inch diameter head stem.

If you have a wider head stem, there is also an adapter available that's sold separately that will adapt to wider stems, so just something to keep in mind.But it is very easy to get installed. Take the bike seat off here so you can see. This is just going to screw or bolt on with these Allen bolts here. They do include the Allen wrench for you to tighten those to your stem, so a very simple installation. Once you have that on there, you can very easily just set your bike seat in place very easily.

There we go. All right.So let's go over some of the other nice features of this. One, it is going to be very comfortable for your little one. We have padded padding on our straps here. The seat itself is very cushy. So it's going to absorb a lot of that road shock and things to make it more enjoyable for them. It is a really nice material seat too. So if you have any leaks or spills or anything like that, very easy to clean off, just spray it down. Maybe put a little bit of soap on there and rinse it off.But another really nice feature for me at least, is that it grows with your child. So these feet straps and foot holders do adjust to your child's size. So as they get bigger, you can extend these down. It's very easy to do on the backside here. There's just this little lever that you pop out and then pull down. There are these little notches as you go along there that you can set them in nearest one for your child's leg length. So that's going to be a big feature. Obviously, kids grow very quickly. So rather than having to buy a new bike seat, as they continue to grow, this is going to grow with them. So you're only buying one.Also the straps here are going to adjust, obviously, as they're smaller, can tighten these down, make it tighter for them. And then as they grow, you can expand them out. This is another nice feature of this bike seat; it's the five point harness. So it's going to make sure that they're strapped in properly. The buckle here is a childproof buckle. So you have to push in on the sides and in the middle to release it so they can't get themselves out. And then of course, the foot holds there to make sure that their legs are not kicking around and causing you to get off balance or anything like that.So it's very safe design, make sure that everyone's going to have a good time. It is mounted on a steel frame here. So again, it's going to help support the weight and make sure that everything's going the way it should. Overall I'd say this is going to be a great option for those of you who enjoy bike rides and want to take your kids along.It is very easy to rock in place on the backside here. You can see we've got a lock that do include two keys. So if you ever have to stop for a bathroom break or anything like that, take your little one out and then very easily lock this in place so that no one can come along and take the bike seat off the bike. Walk away with it. But when you do want to remove the bike seat, just make sure that that's in the open position. There is a red button down there, and then this gray slider. When you don't have the red button pushed in, that gray slider won't go anywhere. Same way when it's locked, that's not going to move at all. But then when you do want to remove the bike seat, push in on the red button and then lift up on that slider. That's going to release it and allow you to lift the bike seat up and off.And this is pretty lightweight. It's only about seven pounds. So it's not going to take much to remove it and adjust as needed. We'll note that the handle here is just for the kids to use, little handlebar there for them to hold on to. It's not designed to be a carrier. So don't carry this with the handle when your kids are in place. There is a little cutout there at the top that you can hold on to, to lift as you need.But like I said, very easy to remove and put back in place so that you can get back to enjoying your trip. Now, this does come in three different colors. This is the black color obviously. It also comes in blue and orange. You can find those using the part numbers that you see on the screen there.Overall again, I think this is going to be a great option for you. Thule does have several different Yepp products. So this one is the smallest. There are bigger ones. So if your child is above that 33 pound weight rating, I would recommend one of the other Thule Yepp products because they do a great job of making sure that they're going to be comfortable and enjoyable and safe for your little ones.So I would highly recommend this child bike seat for you if you enjoy bike rides and want to take you a little one along with you. So that's going to complete our look for today. Again, I'm Michael with Thanks for watching.

Customer Reviews

Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange - TH12020104

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)

Designed for everyday rides, the Thule Yepp Mini child bike seat allows your child to sit in front of you while you ride. The comfortable and sturdy seat ensures a happy rider with a happy parent.


High quality child seat.
Works best
with a step-through European/Cruiser-style bike and mustache/cruiser-style bars, but can also work with other geometries and riser bars.

etrailer’s shipping is careful and expedient and their prices are great


See what our Experts say about this Thule Bike Accessories

  • Will The Thule Slim Fat Ahead Mounting Adapter Work With 1-1/8 Bike Stems?
    I went ahead and checked with Thule, and the Slim Fit Ahead Mounting Adapter for Thule Yepp Mini Child Bike Seat # TH12020413 will fit your 1-1/8" bike stem. Additionally, the ahead mounting adapter you mention will also fit onto 1-1/8" stems. Finally, for your Thule Yepp Mini Child Bike Seat # TH12020104 I recommend going with the Slim Fit Ahead Mounting Adapter for Thule Yepp Mini Child Bike Seat # TH12020413. Attached is a product review video for you to check out as well.
    view full answer...

Used Items Available
Used Picture for Thule Yepp Mini Child Bike Seat - Front - Handlebar Stem Mount - Orange

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $117.95
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Info for this part was:

Employee Amy B
Written by:
Amy B
Employee Matthew S
Updated by:
Matthew S
Employee Michael B
Updated by:
Michael B

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