Why Tailfins Top Tube back is almost perfect

I've used the Tailfin Top Tube Bag for over a year and it's simply the best bag for any bike, except for one main issue!

[@saturdaynightmodular2254]

I have the zipper version. It's really good. I've mounted it on two bikes - one with no frame bosses and one with. Both worked very well, whichever you choose. If you can mount it directly on your frame without straps, it would be better, as the gap between the bag and the frame will be narrower. The only issue I have with this is that it isn't 100% waterproof. I ride in heavy rain a lot and my stuff inside got wet from the first ride I had with it. Maybe I'm expecting too much? I'm not sure.

[@SpinAnGrin]

Interesting, I've never had mine let any water in. Do you mount via the straps or the screws

[@mkenyon7429]

I have the same bag on my 58cm Checkpoint screwed down. Great bag. Note the larger size is recommended for mountain bikes. It is wider and knees may tough it on a road bike. I also have the 3.8l half frame bag. Note their fit application made the next larger size look like it would fit. I cut out the templates from their site and it would not. So measure three or four times before ordering. On the half frame bag I was at first disappointed because it is not screw mounted. But the straps work fantastically. And it is easier to attach and detach. For know I use it with a Platypus 2l water bladder. The pack has a port at the front for the water tube. There is still room for my size for food and a couple TPU tubes. I also use water bottle mount shifter plates to lower the cages slightly I can use larger bottles. These also fit my 2021 Domane SL6 but using only the straps. Nice video. Get a frame bag from Tailfin. You’ll like the interface with the top tube bag. Print and cut out their templates.

[@SpinAnGrin]

That's great information, thankyou. I have tried to the AI generated guide and I'm still debating sizes. Im not worried about ordering the wrong size as I know I wouldn't have any issues returning it for another. I hadn't thought about using a bladder in there 🤔

[@user-cx2bk6pm2f]

Tailfin mounting system is second to none... best in the industry.

[@forest7424]

Great review. Ill be ordering one now

[@SpinAnGrin]

Nice, let me know how you get on with it

[@SimonTaplin-x8r]

I'm also going down the slippery slope you mentioned. Also in Australia, I have a combo of the 1.1 top tube bag and a 4.5 litre frame bag. Perfect fit for my large Curve Kevin. I already had an earo pack that I have swapped between my gravel bike, hard tail mtb and full suspension mtb using the universal axel mount. As you mentioned, customer service is great, quick replies with any questions.

[@SpinAnGrin]

Great to hear that I'm not the only one 😅 I don't think I have the need for the panier rack but that doesn't stop me wanting one.