It’s taken awhile, but adding bags to your bike is finally “cool”. OK, maybe cool isn’t the right word, but at least you can mount up as many bags to your bike as you want without people thinking much other than, “hey, that guy must be into bikepacking.” As a result, or maybe the other way around, a number of companies like Wolf Tooth Components are creating better and better ways for you to transport your gear on your bike instead of on your body.

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Adding to their B-RAD collection of bags, tools, and mounting accessories, WTC has added their Pump Bag and Roll Top bag to the mix. Measuring in at  12 in x 2.5 in x 2.5 in, the bag is big enough to fit a 12″ hand pump along with tube, multi tool, and possibly other items depending on the size of each one. It’s lower profile than most bags which means it could work well as a top tube bag, which is how I’ve been running it for the past few months.

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

However, versatility is the name of the game here – it can be mounted almost anywhere – your seat tube, down tube, or any other tube, really. To mount it, you have three options in either the standard water bottle mounts, using one of the B-RAD adapter plates (had to use the B-RAD 3 above, to get the bag to clear the steerer tube), or attaching it with silicone backed velcro straps which will fit tubes up to 2.5″ in diameter.

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Our sample weighed in at 122g without the mounting hardware, the bag is built from PVC backed 420D ripstop nylon with a water resistant YKK zipper. The bag sells for $39.95 with straps and mounting hardware (B-RAD plates not included).

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Another option is the new Roll Top bag which has a larger 1.1L capacity but the same PVC backed rip stop nylon build. Only this time, the bag has a roll top closure with a Duraflex buckle to keep things cinched tight.

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Wolf Tooth Components adds extra baggage with B-Rad Pump Bag & Roll Top

Again, there is quite a bit of versatility built in with mounting available through the included silicone backed velcro strap, or with the included mounting hardware to be used with a not-included B-RAD base. Between the two, you can mount it almost anywhere including the saddle rails on a dropper post.

The Roll Top has a claimed weight of 76g without the adapter plate, and sells for $31.95 for the bag and strap, or $39.95 with the adapter plate included. Note that if you pick the latter option, you’ll still need to purchase a B-RAD base to use with the adapter plate.

Both bags are available now.

B-RAD System


  1. Smart to put a bag around a pump, too may times have reach for a pump only to find it unusable due to dirt and water intrusion. Been wrapping my bike pump inside an old inner tube to keep it working.

  2. Love your stuff, WTC. We all use various pieces on personal bikes, and we even partnered with WTC, incorporating the Valais 25 into our groundbreaking Black Dragon dropper seat bag.

    As for the “new” Roll Top, though – I guess we’re… flattered?

    Designed – and made – in Colorado.

      • Hmm. So, to you $20 is worth buying a Chinese copy of the original, worth lower quality materials, worth American jobs? Okay, noted. We’ll keep coming up with original ideas, using better materials, and manufacturing in Colorado, for people who care about these things.

        • Offer a Chinese made one and and American made one and get back to me with sales numbers. American made does not have the same ring of quality it once did nor does Chinese made have that ring of cheapness. When I see American made it usually means erogance and over priced. If you were competing on price and quality you would not have to put “American made” all over your marketing materials. People would want it because it is better. You just spout the jobs and quality BS as a way to make people feel guilty so they buy your product.

          And yes 40% of the purchase price is worth jobs and assumed quality. You didn’t invent the roll top bag. And if you did you should have patented it. And if you have a patent you are either licensing it so you can complain or you have a lawsuit to go win.

    • Mark,

      If you don’t need the bosses for a bottle then you can mount the plate directly- you just might want to put it on backwards or add a thin spacer to keep the ribs from contacting your frame.

  3. So the adapter plate is curved? Thanks, it was hard to tell from the photo. This’d be for tools and spares under my downtube where I might prefer the adapter plate instead of the strap- worries about abrasion or slipping, especially after a dirty, hasty trailside repair.

  4. @bedrockbags – Is this really where you are going to make your stand? You have build an entire company on ripping off the original designs of Epic Eric, and you are going to get your undies all bunched up over a ditty bag with a strap on it?

    Lets be clear here – your website has a claim of you guys making bags “way back” in 2010 – yet Epic Eric made frame bags and seat bags quite a bit earlier than that, he was the first, and I was riding his stuff in 2008. There are not many ways to slay a seat bag, but damn, you guys didnt even try to make something different, it looks just like a Revelate, you just added some bent metal.

    Directly on topic – if you think you can lay claim to a simple bag with a strap, you guys need to step out of the dispensary. There were dudes riding bikes in the woods with ditty bags strapped to their bikes before you fells stopped leaving greasy deposits in your underoos. Shit, Granite Gear (now Cedaero) had a roll-top bag with a strap that you put under your seat in the f*cking 80s. Damn thing was made in neon.

    I used to have a lot of respect for you guys, but this is just comical. Bros were strapping bags to bikes before you were an itch between your dads legs. And even when it became the cool thing to do, you were what, like 9th to the party?

    • Well, that’s an interesting perspective. Unfortunately, it’s also extremely incorrect.

      Let’s be clear here, indeed, and leave out all the personal attacks. Eric is a personal friend and we value his obviously large impact on the bikepacking world. But if you think he was the first to create, make, and sell the modern version of what we call bikepacking gear, you’re wrong. He was simply the first to do it on a large scale, which is why you’re familiar with him and Revelate (Epic). We were part of the “second wave”, along with Porcelain Rocket and a few others. Anyone who creates things stands on the shoulders of those before them; but there is a line between building a similar-purpose piece (bikes all have two wheels) and a copy (bikes that are the same). According to your perspective, every bikepacking bag ever made has no improvements over the early gear.

      Speaking to seat bags, since you brought it up: The fact that you think our seat bags are the same as Revelate’s just shows that you’re looking at the “two wheels on the bike”. If you got into the details a little you’d find that they are exceptionally different. In fact, our seat bags are unlike anything else on the market, period, both in functional design and performance.

      As for the Sinbad: Until now, nothing quite like it that we’ve seen, anyway. Yes, a simple idea. But disheartening all the same to see a Chinese version, especially from a company whose products we use, who appreciates domestic manufacturing. (We’ve been in touch with WTC directly and we’re all good.)

      Finally – if you “used to have a lot of respect” for us, and this very mild “hey, WTC, what?” is what pushed you to slam us publicly with a bunch of incorrect info, then your definition of respect is very different from ours.


  5. I’m late to the game here, and I rarely bother to comment, but @Bedrock Bags here is some input from an average consumer, so take it for what it is, one common man’s opinion. As a former small business owner, I learned to really value feedback, positive or negative. Your responses on this thread, while likely well intended, read as petty and quite frankly, whiny, and they influenced my purchase decision. Granted a very small purchase, which has no real impact. Maybe others have done the same after reading this, or maybe I’m an anomaly. I too have purchased and used Wolf Tooth Components and feel like they have really filled a nice niche with some cool innovation. I’ve read good things about your products and I think it’s great your company collaborates with others like Wolf Tooth. I was going to buy a Sinbad, but like I do in most cases before making a purchase, I poked around doing a little research. I ran across this thread. I’m going to stick with Wolf Tooth.

  6. Not sure what the really happened with regards to WTC copying a Bedrock Bags design. But to whoever from Bedrock that thought it was a good idea to call them out here, I say this: imitation is highest form of flattery. Move on. If your products are as amazing as you say they are, this shouldn’t have any effect.

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