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🚴♂️ Slim, smart, and ready to roll—your ride’s new best sidekick!
The ROCKBROS Top Tube Bike Bag combines a narrow, aerodynamic design with a spacious 1-liter capacity, weighing only 90 grams. Featuring three adjustable straps for universal bike compatibility, it offers quick installation and one-handed zipper access. Reflective elements enhance night safety, while durable ripstop polyester and a non-slip base ensure long-lasting performance. Perfect for road, mountain, and triathlon cyclists seeking sleek storage without compromising speed or style.













| ASIN | B07YWXS4RL |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #5,512 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #12 in Bike Handlebar Bags |
| Brand | ROCKBROS |
| Brand Name | ROCKBROS |
| Capacity | 1 liters |
| Closure Type | Zipper |
| Color | STYLE 1 |
| Compatible with Vehicle Type | Bicycle |
| Customer Reviews | 4.6 out of 5 stars 2,923 Reviews |
| Handle Type | strap |
| Item Dimensions L x W x H | 8.66"L x 2.16"W x 3.93"H |
| Item Highlight | Adjustable Straps,2 Inner Net Pockets,Elastic Rope,Reflective, Compatible with iPhone 14/13/12 Pro Galaxy S22/S21,Road MTB |
| Item Type Name | bike bag |
| Item Weight | 98 g |
| Manufacturer | ROCKBROS |
| Manufacturer Part Number | 039BK |
| Material | Polyester |
| Material Type | Polyester |
| Model Number | 039BK |
| Mounting Type | Frame Mount |
| Number of Compartments | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | top tube bike bag |
| Pocket Description | Cargo Pocket |
| Product Dimensions | 8.66"L x 2.16"W x 3.93"H |
| Shell Type | Soft |
| Size | one-size |
| Strap Type | Adjustable, Stretchable |
| Style Name | Style 1 |
| Unit Count | 1 Count |
| Vehicle Service Type | Bicycle |
O**O
Decent sized boom bag for recumbent trikes
Decent sized boom bag for recumbent trikes. The straps are just long enough to go around a squared boom, with ample length of strap for the front post. Secure seal on the zipper with a tuck underneath the flap when fully zipped. Easily used even with cycling gloves. Two inside mesh pockets to separate cards, tools, etc. Main compartment is large enough to hold a face mask for chilly rides, a pair of gloves, power bars, energy drink packets, electrolyte tablets, and more. One side has laced elastic cording that can hold a variety of items close at hand and away from the legs when pedaling. I lace a power cord from the lower Rock Bros. bag to a phone mount above this orange bag. Elastic cording keeps the power cable close to the back. Even have a Brook Pocket Catcher I attach to the side of the bag. Would recommend to the manufacturer to supply longer straps on front and rear areas of the bag, and perhaps offer a 4 inch longer bag of the same height and angle. Also have the elastic cording to be on both sides of this bag. Do treat the bag as have noticed fading of the material on the zipper side. Note: There is a Rock Bros Frame Bag In have underneath to boom to hold a large power pack that recharges the phone when out and about. Also carry extra tools, a cloth rag, and gloves when working on the chain when necessary. (ASIN B07QM4X22Z) I recommend both bags for use on recumbent trikes.
G**Z
Very happy with this bag
Very happy with the new "Style 2" bag. I've gone through a number of brands and styles, and this one is by far the best. Large enough to hold my iPhone 14 Pro, snacks and a power bank, but narrow enough that my knees don't bump the sides. I also like that it holds its shape, unlike other bags I've had that tend to get a bit floppy over time. Looks great on my matte-black road bike with its clean lines, nice material and subtle branding. Maybe the best feature is the attachment system, which uses elastic bands rather than velcro straps. It looks much better, is easy to get on and off, and is more secure, IMO. Other notable features include a cable opening (which is maybe a bit too tight), a stretchy side pocket (which could be a bit deeper), and a protective hood for the zipper. Note that there are no holes in the bottom of the bag for bolt attachment, but I've moved away from that approach anyway, so no big deal. I'm so satisfied with this bag that I bought a second one for my gravel bike.
M**E
Nice bag on the small side for my needs
An attractive bag made well. But I returned it because it was just a bit too small. My phone fit in there with the case on but I had to use both hands to get it zipped with the phone in there. I found a larger bag.
B**N
Perfect Bike Accessory – Sleek, Functional, and Durable!
I recently purchased the ROCKBROS top tube bike bag and couldn’t be happier with the product. It fits securely on my bike’s frame with zero wobble, even during longer rides or bumpier terrain. The material feels high-quality and weather-resistant, so I don’t worry about my phone or essentials getting wet. The best feature for me is the convenient phone compartment. It’s the perfect size to hold my iPhone and keys, without getting in the way of pedaling. For under $25, this is an incredible value. If you’re a casual rider or a more serious cyclist, this bag is a smart upgrade. Highly recommended!
P**Z
Seems perfect!
I bought this top tube bag to replace a bag that was too small for my new phone. I am 5'3" and my bike is a 50" frame, so I don't have a lot of extra space to work with. I was concerned at first that this bag would be too big, and in my way. The slim design alleviates that concern because I can still straddle my bike with enough room for my legs. I don't notice it on my bike at all, and it will fit my phone, wallet, and other small personal items that I don't want to put in my jersey pockets. I like the elastic attachments...fits my bike great and looks clean. I've only had it a week, so I don't know how the elastic will hold up, but it's a plus over the velcro. Hoping I will get substantial use from it.
B**I
Perfect slender fit!
Perfect! I wanted a bento bag that could fit my iPhone, sunglasses, tissues, and a chapstick. Since it’s for a road bike, I needed something slender enough that my knees would not hit it. This fits perfectly over my top tube and it’s stiff enough that it doesn’t flop around. Bonus points for the color matching my bike!
A**G
As advertised
The ROCKBROS Top Tube Bike Bag lives up to its promises and has proven to be a great addition to my cycling gear. One of the standout features is its perfect fit for larger phones, like the iPhone 15 Pro Max, making it a practical solution for cyclists who want to keep their phone easily accessible while riding. The bag is lightweight and portable, which doesn’t add unnecessary bulk or weight to the bike. Its new mounting system is secure, ensuring the bag stays in place even on bumpy rides. The design is sleek, and the material appears durable, holding up well against different weather conditions. Overall, this top tube bag is an excellent, straightforward solution for cyclists needing a reliable, compact storage option for their phone and other small essentials.
A**R
Sturdy and seems waterproof
fits well on the bike and seems like it will be waterproof. I rode with it once and it did not wiggle and kept my phone and a couple packets of chews inside. Hopefully it will last.
J**Z
Excelente
Muy funcional
S**A
Fit for one mobile and sleek wallet
A**N
Very nice and fits pro max iPhone
Amazing. Light weight and material feels really nice. Can easily hold my iphone 17 pro max and can easily fit 2-3 phones and your wallet and car keys.
匿**名
小物収納に便利!
容量はそれほど大きくありませんが、スリムで脚が当たることもなく、チェーンロック、補給食、財布などの小物を収納するのに重宝しています。ゴムのドローコードがついていて、脱いだ薄手のウインドブレーカーなどを括りつけることもでき便利です。
A**A
GREAT!!
Great bag very stable and stays on, fits soo much stuff and even has a little pouch on the side which I can use for snacks and tissues it also is a great size and material and I can fit my phone and thing (wallet) in the pouches built inside and also good in the rain (waterproof)
Trustpilot
1 week ago
2 weeks ago