Topeak TC2261B Aero Wedge Pack with Strap Mount, Medium, black

Purchased this under-seat pack after the zipper broke on my previous saddle bag. Installation is quick and easy. Though it does seem the seat-post strap Velcro isn’t stuck to itself much. Despite this, it’s remained attached without issue. It does have a tendency to slide down the post, causing the bag to tuck further under the seat, making it difficult to access the zipper. Putting a bit of rubber on the inside of the strap would likely solve this. The straps that attach the bad under the seat are a bit long, though a remedied that with the help of a little zip-tie to hold them coiled up. The pouch size is great. It holds my phone, wallet, and keys when I ride, along with a tire patch kit and multi-tool. I would note that the current iPhone 14 Pro Max is about as big of object it it’ll fit (without opening up the saddle bag extension). It’s just the right size to carry the things I need along for the ride, without weighing me down. It’s a great saddle bag that’s just the right size for everyday riding.

The wedge under your rear bicycle seat has a humble function--to transport the stuff you need to get back on the road in case you get a flat or another mechanical problem. You wouldn't think making one would be rocket science, but, in fact, these items do actually differ significantly one from the other. Most I've used are decently well made, but the difference is in the little extra things you might not have thought to ask about before you pick one up! PROS *Perfect size. Like Goldilocks: not too big ,not too small, just right! A small-size pack is not going to hold everything you need and a larger one is not going to fit neatly under the seat. When packed carefully, this holds: two extra tubes (when I ran over some briar thorns in California and instantly created Swiss cheese out of TWO tubes I realized, really, you need two!), patch kit, three tire irons, a multi-tool and $20 extra cash. *Attachment to the top portion of the seat uses velcro strips and buckles rather than a plastic "T." At first I liked the plastic T design, but I later realized this design can be very easy to install under some seats and a pain (possibly even impossible) under others. I would rather have one that won't create an issue if I switch it to another bike or get a new saddle. *Two nice elastic rings under the wedge for additional storage. I use it for the Lezyne Pressure Drive Hand Pump . Wow, amazing...you don't need a pump on your frame if you use this combination of products! *An attachment point on the rear for a light. Since I occasionally ride at night (sometimes unexpectedly if my ride goes longer than expected) this is a MUST HAVE. I simply put a red flasing LED light on the back of my wedge pack and if I need it, I switch it on. Really, there's no reason a wedge pack should ever be built without this attachment and thank you, Topeak, for understanding that. *Zipper appears strong and I expect it will take abuse. I abuse it by riding in rain, packing bag tightly etc. I will post if it ever breaks, if not, you can figure it is still going strong! CONS *Doesn't come in pretty colors. This replaces a really pretty blue one which matched my bike...but that saddlebag didn't have many of the features of this one, so out it goes. I also want to give a tip for those who were disappointed that wallet, cell phone and keys don't fit in this along with your emergency supplies. The purpose of this bag is not to hold that stuff. It's darn inconvenient since this type of bag is not designed to be easily opened to pull out one or two things and it's not designed for easy-off, easy-on if you go into a store. What you want is something in the handlebar bag family, for example, I have this one: Sunlite Handle Bar Bag, 2011 Model, Small, Black . You can put your wallet, keys, a snack and cell phone in here. If you have to lock your bike and go inside, you take it off in just a few seconds and carry it with you.

I've had this back strapped to my bike for three years now. I purchased the one with two straps because I wanted to avoid the plastic clip. This is a great pack and holds a lot. I like the cornucopia shape; the large opening makes it easy to use the pack. The velcro straps work well keeping the pack attached to the bike. I don't have any problems with it moving around or rubbing against my legs when I ride. The back of the pack has a strap sewn onto it so you can attach a light/reflector if you wish. In my pack I have a spare inner tube, a large multitool, an innertube patch kit and two tire levers. There is a mesh pocket on the rear flap that is great for holding small extras. I put a spare battery and a work gadget that is a bit smaller than a lighter. I also can fit my Razor phone in here too. I commute to/from work fairly regularly so I open/close it often. The zipper is very sturdy. I have yet to try it in expanded mode. This pack is well constructed and roomy. The large mesh pocket is very nice feature. I highly recommend this pack. Edit: I'm taking away one star because this is not waterproof. I rode home on slightly wet roads and noticed there was wetness inside when I took out my cell phone. I still like the pack though; it holds a lot.

I had difficulty deciding between this Topeak seat bag and the Avenir Bigmouth Velcro Seat Bag (Large- 73/106 Cubic Inches) . I also had difficulty deciding between the medium and large size Topeak seat bags. I wanted the largest seat bag I could get but I didn't want the chance that it would rub on my legs while pedaling. For certain, Topeak's website and catalog have a dizzying array of seatbags. I would have preferred the Aero wedge that has the "fixer" (the plastic connection to the seat), but I read far too many reviews stating that the plastic breaks far too easily. In the end, I'm glad I chose the large Topeak seat bag for my Trek DS 8.5 hybrid with stock seat. It fits perfectly under the seat and doesn't interfere while pedaling (see update below). The straps hold it very tightly to the underside of the seat and to the seatpost. The bag also has flexibility that allows it to be shifted in a downward direction on the seatpost rather than hanging the bulk of the bag from the bottom of the seat. For example, since my seatpost is rather high, I can shift the bulk of the bag onto the seatpost. I think it's better than the Avenir Bigmouth bag for one reason: The Topeak's cornucopia shape allows it to hug the seatpost a little better whereas the Avenir Bigmouth, to me, just looks like a big chunk hanging underneath the seat. The bag has a zippered expandable section. With the bag in its fully open position, I can fit the following items (see my additional uploaded pictures): IceToolz Steel Tire Levers Set, 3 Piece 2 valve adapters ( Kool Stop Brass Card/12 PV Valve Adaptor (Pack of 12) ) inside the patch kit Innovations Air Chuck Elite Inflator including sleeve and CO2 cartridge 3 additional 16-gram CO2 cartridges 3" Pocket knife Replacement 29er tire tube 2 AA batteries in plastic storage case for my GPS 4 AAA batteries in a plastic storage case for my Portland Design Works Radbot 1000 1W LED Tail Light 2 CR123 batteries in a plastic storage case for the Fenix PD30 flashlight/headlight Fenix PD30R2 6 Level 235 Lumen LED Flashlight Beretta 84FS small frame pistol in holster (biggest item by far in the bag) Park Tool VP-1 Vulcanizing Patch Kit Driver's license & other identification and a little cash in a tiny envelope There's a bit more room to spare for a couple more items the size of CO2 cartridges, but there's no room left for a sandwich, wallet, or snack bar. One minor gripe. With the bag tight against the seat bottom, it's a little difficult to get the zipper open. Other than that, I'm so pleased with the bag that I also bought one for my wife's bike. Update: After getting more comfortable with the bike, I decided to adjust the stock seat forward for better posture. My legs now do touch the bag a bit while pedaling since I'm not able to move the bag toward the rear as far as I used to. I guess your mileage may vary depending on how your seat is positioned, and different seat bags that hang further back rather than snaking down the seatpost are probably less likely to interfere while pedaling. See extra uploaded pictures for a "top down" view of the bag under the seat. To solve this problem, I put two heavy duty zip strips at the appropriate height on my seat stem. This prevents the bottom velcro from sliding down the stem further than I wish. It works perfectly and prevents the bag from getting in the way of my legs while pedaling. Also, be careful when carrying a lot of weight and attempting to use this on mountainbiking trails. After carrying the items listed above on intermediate singletrack for about 15 miles, the rear seam of the bag ripped. (See additional uploaded picture). I foresee no problem when using this bag on smooth trails, but--depending on the weight you're carrying--it might not be sturdy enough for offroad trails. I repaired my bag with heavy duty black quilting thread and just kept on trucking.

Good size. But very expensive

I like this bag a lot. I got the medium bag and it has lots of room especially when you expand the bag. Nice fabric, zippers and straps. Fits very discreetly under my seat.

Wish I bought the medium again. Small is a little too small.

I bought 2 of the large version of this bag about 1 year ago and gave them 5 stars in my review. I still use one of them regularly and I gave the 2nd bag to my daughter when she started cycling. I bought 2 of these bags in the medium size and they are the same great construction bag with one minor, but important, exception - the seat post strap. When my 2 medium bags arrived today I put one on my Giant Defy Advanced Pro bike and the straps worked perfect to secure it to the seat rails. However, when I wrapped the seat post strap around the seat post of my bike, the velcro only overlapped about 1/8". The strap itself was a couple inches longer but the velcro on the strap just barely touched. If my seat post was a lot larger diameter everything would have been fine but this has never been an issue using the large version of this bag on the same bike. The 2nd medium bag I received today was for a friend of mine who rides a Trek bike and he had the exact same problem. The bag fit great under the seat but the velcro seemed to be in the wrong place on the seat post strap so it only overlapped about 1/8". We were both concerned that the bag would come loose from the seat post the first time we hit a bump since it was not securely attached. I plan to return both of these bags on Monday and order 2 of the large bags to replace them. I don't know if this was a design issue or a manufacturing defect on the seat post straps. Other than that these are great bags that are very affordable, made of good materials and have well designed features.