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TopLoader Top Tube Bag

3.6666666666666665 out of 5 stars
3 Reviews



TopLoader Top Tube Bag

Keep your essentials out in front and easily within reach on your bike with the Topeak TopLoader Top Tube Bag. A lightweight, durable, and water- and stain-resistant nylon material fends off passing rain storms and splashback on the road, while the adjustable nylon straps secure a locked-in fit to your bike without any hassle. The zippered opening reveals divided internal compartments for organizing your tools, phone, wallet, keys, and phone, and an integrated rain cover pops out to truly protect against the elements when the weather takes a turn for the worse.


  • Handy, tough top tube pannier for carrying along essentials
  • Water-resistant fabric keeps light precipitation at bay
  • Adjustable nylon straps attaches securely and quickly
  • Integrated rain cover gives you extra protection in a pinch
  • Divided compartments help you organize your gear
  • Item #TOP003A
polyethylene, nylon
0.75L (45cu in)
divided compartments
[top tube diameter] 35-46mm, [head tube diameter] 34-75mm
9.3 x 4.7 x 2.8in
Claimed Weight
6oz (169g)
Manufacturer Warranty
2 years

Overall Rating

3.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 1 reviews

What do you think about this product?


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2 out of 5 stars

April 7, 2021

Scratched the Clear Coat

I've used it several times

I would NOT recommend putting this on a carbon bike. If you have an AL or steel frame then it is a great option for storing goodies. I could store keys, phone, light, multitool, cliff bars, and a light-weight rain jacket with no problems.

Conner C

Originally reviewed on Backcountry.com

4 out of 5 stars

October 12, 2020

Good Bag

I've put it through the wringer

I like the bag. It does stay straight on the bike and hauls exactly what I wanted it to. The only problem I have experienced is the small end has created a worn spot on the top tube of my bike that's pretty significant. If you can tolerate that it's a great bag. I ride 100 miles a week.. Tony

Tony F
5 out of 5 stars

August 12, 2020

Perfect size, doesn't wobble

I've used it once or twice and have initial impressions

I bought this because during the summertime I prefer a looser fitting tech t-shirt over a jersey, and needed to make up for the lack of pocket space. This bag is nice and sturdy, and doesn't wobble on the frame. I only have a single 1/4 inch spacer underneath my stem and had no issues with the front buckle. I haven't had any issues with my knees hitting the bag as I'm pedaling either, but there is some very slight rubbing if I'm climbing out of the seat. The bag is large enough to fit two inner tubes, phone, ID/credit card, a gel, a couple of fig newtons, and some beef jerky. If you put your extra tubes in a saddle pack though you could fit more snacks. The way the zipper is positioned you could also carry a portable charger and run a cord to your bike computer. It's awesome to have your stuff right there in front of you, instead of having to blindly fumble with jersey pockets or try and pull something out of your saddle bag on the go. I haven't had this long enough to comment on whether it's going to mar the frame long-term, but the lack of wobbling leads me to believe no. There's also a felt piece where the front bottom corner contacts the frame/headset that's intended to prevent any scratches or paint rubbing.

Christopher R

Originally reviewed on Backcountry.com