Chase Harper USA 450M Magnetic Tank Bag, Water-Resistant, Tear-Resistant, Industrial Grade Ballistic Nylon with Anti-Scratch Rubberized Polymer Bottom, Super Strong Neodymium Magnets

I have this bag on my BMW R100RS airhead. I tried several Chase Harper bags, including the 1602M and the 1700M (I was determined to find the right one) and this is the one that fits the contour of the tank best - both fore and aft and side to side. I like the size and shape of the bag - it fits the tank quite well without covering the filler cap (don't want to plug the vents) and without interfering with my knees or the bars. For me, it's a good height: it allows me to get down in the crouch but still holds enough to be quite useful. If you had a more upright setup (the R100RT for example) and wanted more storage, you might like the taller 650M, which seems to have the same footprint. The quality of the bag is superb - strong stitching, thoughtful placements of pockets, and very strong magnets. I use the stem strap for an extra level of safety. I also have to admit that the fact that it's made in the USA made me feel good about spending a few extra dollars on this bag.

This Chase Harper 450M tank bag is the perfect size for my Triumph Speed Twin 900. I’m very happy with it. Great quality and fit. And magnetic mounting makes for easy on and off (on a steel tank, of course). It’s not big, but it’s certainly big enough for my needs. It’ll hold a couple of bottles of water, maybe some snacks, an extra pair of gloves or socks, phone, wallet, car keys, glasses, a baseball cap, and whatever other small stuff I need on a day trip or don’t want to risk losing from my pockets just running around town. Maybe even a light rain slicker too (though at worst there are cross-laced bungees on top for that sort of thing). The four neodymium magnets are plenty strong enough to hold it in place at speed. It comes with a head-stock safety strap, but it’s really not necessary. To the design’s credit though, if you do use the safety strap, it’s got a quick-release buckle. A shoulder strap and a clear map pocket that can be clipped on top are also included. Very well thought out. Construction is tip-top quality. Very well designed and sturdy. It’s padded and keeps its shape even when empty. Best of all, really, is how well it fits a teardrop tank, being roughly oval shaped (top view). I highly recommend this tank bag, especially for retros, if you want some on-board storage capacity that's not too unwieldy.

I tested this tank bag on my sportbike. It's an '02 (AKA "K2"), so there's much more real estate on the tank than newer bikes. This tank bag exceeds my expectations. Ironically, my first impression was a bad one: I thought it was ridiculously small. Maybe it appeared so tiny because I had a full size tank bag years ago. I was concerned that the small wings that contain the magnets wouldn't be nearly enough to hold it in place. Let me disabuse you of any such notion. This bag is freaking awesome. It's the perfect size. I think the magnets would keep the bag firmly in place even at 180 mph. Neodymium magnets are no joke. The bag is light weight, and comes with a belt in case your tank is a composite. Just be careful placing the bag on your tank. The magnets can bang against your tank. Same goes with pulling them off. I might try a thin microfiber in between the tank and magnets. As per the instructions, keep computers and drives away from this bag lest you corrupt your data from the magnets. I attached the clear tablet/phone sheet to the top of the bag. At first I was disappointed because touch wouldn't work at all. I decided to flip the sheet, not expecting any change. On the other side it worked perfectly. The bag is well made and has a ton of compartments that use zippers. I believe it's supposed to be water resistant, and it has a lifetime limited warranty. Definitely rate this bag with 5+ stars. PS: The pics are lackluster due to the poor lighting in our parking stall.

I have been very impressed with this little tank bag. It seems to be of good quality, has lots of pockets and compartments for which I have found great uses. The magnets are plenty strong to hold my bag on the tank of my Honda NT1100 with no worries that it might move during a ride. I don't use any tethers as the magnets hold very well by themselves. It appears that it would offer some protection from water, at least in a brief rain shower. The handle makes it convient for moving from the bike to other locations. Great purchase and highly recommended.

I put this bag on a 2008 Suzuki V-Strom 1000 which has an oddly shaped tank with more plastic on the side than metal, so I ordered the strapped version instead of magnetic. Straps, buckles and attachment points are strong. Once strapped in, the bag doesn't move. Bottom of the bag has a rubber feel to it which also helps it stay put on the tank. Doesn't budge even with the bike fully leaned over. Have had it at triple digit speeds and off-road. Never moves. For a small bag, it has a number of well thought out pouches. Zippers are high quality and operate smoothly. Main compartment is plenty big enough for a couple small water bottles, couple smart phones, wallet, sunglasses, keys, etc. The bag also comes with a clear, touch sensitive pouch that secures to the top of the bag to hold your smart phone, iPad or tablet. When not in use, it tucks away in one of the many pouches the bag has. Nice touch. The bag is just what I was looking for to hold all the items I use frequently while out and about in the bike. No need to dig around in the top box or panniers. It's all right there in the tank bag. Very high quality bag that's priced right. Also made in the USA!

The bag mounted real simple the keeper strap around the steering head was a nice touch. The bag is well laid out easy to get into and use. The map pocket that can be removed in 1 min is a nice touch. The junk that was in pockets . Now in Bag plus a little extra room.

Même rempli au maximum, donc pesant, et à 100 km/h, il reste en place sur le réservoir. Les aimants sont vraiment incroyables! J'ai une Indian Scout Rogue et il fit super bien en terme de grosseur. Et il est assez grand pour mes lunettes, porte-cartes, clés, cigarettes et même mon manteau de pluie. Et non, il n'égratigne pas le réservoir grâce au matériel qu'ils ont mis sous le sac. C'est rare que je suis satisfaite à ce point d'un achat sur internet. Plus cher que les autres alternatives mais il vaut très certainement son prix. Je le recommande sans hésitation.

Love this bag , worth every cent..

It is quite good quality and sticks to the tank so well i have no worries about it coming off. However, it is very small and if I could go back in time I would return it and get something bigger. I'm going to have to do so anyway ...

I was really excited about the bag when I got. The magnetic feature was one of the best I have had, unfortunately the main zipper started failing about 3 months into having the bag. I contacted Chase Harper and they were very responsive in ensuring that the issue was addressed. Although I only get 50% of the replacement bag, they are looking into the failure of the zipper.