We wanted a cover that would last in the weather to protect a bike stored outside year-round.
We installed the Team Obsidian: Bike Covers size large onto a bike that measured 71" from the end of each tire.
The cover fits over everything easily but was a little baggy. See the attached picture.
There are buckled straps on either end to secure the cover, and even when tightened all the way, the bag was still baggy. The end straps, along with the center strap, should keep the cover from ballooning off the bike and stay in place in high winds.
The cover reached all the way to the ground.
As the cover is not symmetrical to all wider handlebars in the front, the pattern on the cover, along with a small label, identifies the front of the cover.
The material appears to be a heavier weight that we hope will hold up well to constant exposure to sun and rain. We will update this review after a winter of exposure.

I was looking for a bike cover that would last awhile, and that would keep every part of my bike dry, including the bottom of the wheels, pedals, hubs. gears and other low-hanging parts that have been inclined to rust in previous years due to splashing downpours and heavy wind. It also needed to able to stand up to sunlight exposure between storms without breaking down.

This is the only one I found that has both the size parameters I was looking for, and a heavier weight. I didn't need it to look good, but it does. I also didn't need the reflective seam tape, but I can see how that would be useful to improve the visibility of a bike being stored in a garage.

The rains came late this year so I waited to see how waterproof it is. It did a great job. Tightening the drawstrings was something of a pain, and I didn't get them quite as tight as I wanted, but so far they kept the bottom part of my bike dry better than I expected. I also use the strap across the middle of the bottom.

We haven't had a really heavy rain+wind storm yet - I might tighten a bit more at the ends before that. There was a very slight bit of condensation on the seat, but I don't think there is really any way around that when the coldness of rain rapidly cools a cover that is touching the seat, and the air humidity is upwards of 90%..

I really appreciate the handles at each end to make it easier to put on and take off. While I was waiting for rain, the yard service came and blew dirt all over it on a regular basis, and I was able to easily brush or rinse it off so the cover looked new again. The waterproofing seems to be excellent - water just beads and rolls right off.

I wish there was a way to lock the frame of the bike AND the cover with the same lock. The holes in the cover for the lock to come through are at each end, so you can only lock the wheel. Since I have quick-release wheels, I might hesitate to leave the bike in a public location, but I don't need to do that much, so this is a minor issue for me.

The cover has a bag. I don't bike when rain is expected, and it would take several minutes to get the cover on and off, and into and out of the bag, so I haven't used it. Maybe that would be good for a bike commuter, though. Probably quicker than finding a parking space, LOL! The cover would need to be clean, though, or you'd get dust all over your work duds.

I sent away for the offer for the free light, which arrived promptly and works fine, and for the extension of the guarantee, which was another reason I chose this cover.

So far so good, and if anything changes, I will come back and update my review.

UPDATE 2+ years later: The cover began to fade on horizontal surfaces within the first 6 months, and the top of it became entirely light gray by @14 months. However, though it is not pretty anymore, the heavy duty fabric continues to be flexible and water proof and to protect my bike well.

Due to the height of my bike, there is some exposure of the very bottom of the wheels and from falling rain splashing up, though the drawstrings and strap across the bottom minimize this. I have resolved the issue of moisture condensing on the seat by simply covering the seat with a plastic bag before I put the cover on. I have not had condensation issues in any other part of the bike.

I have a handlebar basket, a back rack with a plastic milk crate strapped to it, and saddlebags, all of which are well covered, though they probably raise the cover a little at front and back, contributing to the exposure of the bottoms of my wheels.

All in all, I am very satisfied with the durability of this cover. It is too bad it faded, but it is out in the weather 365 days a year, and I bought it for its function not its looks. Once I got the drawstrings adjusted the way I wanted, it was easy to put on and remove, even in the dark (my motion detector light often goes out when I'm in the middle of putting it on, LOL). It is very helpful for someone who has to store their bike outdoors.

We have 2 large e bikes and was wary when I ordered it because of some reviews that said to order a 3 bike cover for 2 bikes. I ordered a 2 bike cover anyway and it fits perfectly with a little room to spare. Ordering is confusing as sometimes there is a drop down box for the different styles and sometimes not. Originally I ordered the lighter weight cover and used it for travelling and that did not really work too well. I had to use alot of bungee cords. I returned that one and ordered the 600D for transporting 2 bikes. This one is great. No need for bungee cords. Easy to put on and take off. Great quality.

Before and After photos of the heavy duty cover after driving over 3000 miles. Can you tell which is which? The cover still looks brand new. You simply have to use a lot of bungee cords to keep it from flapping around. Excellent cover

So we already have the XL for two bikes and have been using it to cover our two e-Bikes (a Rad Runner and a Rad Wagon) on our RV bike rack. The XL was a tight fit and rubbed in some areas and worked for about 6 months on the road (12,000 miles) before it started to leak through"¦ so we ordered a replacement and decided to get the larger XXL size in hopes we could use it easier when they are off the bike rack too. But this one seems shorter in length and is a super tight squeeze to get it on the Rad Wagon even all by itself on the ground. (The XL was/is easy to get on/off that bike alone)"¦ so not sure what the issue is. We are going to try it on the RV rack when we leave this location and I hope it stretches/works, otherwise we've kept the old one to use and it will be too late to return since we needed to use it on the Rad Runner by itself before we realized it's too short for the Rad Wagon.