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🚴♂️ Ring in safety and style with ROCKBROS Electra – your ride’s new best sound!
The ROCKBROS Electra Bike Bell is a compact, electric horn delivering a powerful 90dB alert with three selectable ringtones. Its water-resistant silicone cover ensures durability and a universal fit on most bike handlebars without tools. Lightweight and easy to install, it’s designed for urban commuters and cycling enthusiasts seeking reliable, attention-grabbing safety in a sleek package.










| ASIN | B08TLV69VC |
| Best Sellers Rank | #24,014 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #41 in Bike Bells |
| Brand | ROCKBROS |
| Brand Name | ROCKBROS |
| Color | Red |
| Customer Reviews | 4.0 out of 5 stars 3,629 Reviews |
| Included Components | Silicone+PC |
| Item Weight | 33 Grams |
| Manufacturer | ROCKBROS |
| Manufacturer Part Number | CB1709RD/US |
| Material | Silicone |
| Material Type | Silicone |
| Model Number | CB1709RD/US |
| Mounting Type | Handlebar Mount |
| Product Style | Electric,bike Bell |
| Size | One Size |
| Style | Electric,bike Bell |
| Unit Count | 1 Count |
M**O
I've never been disappointed with a ROCKBROS product
And this one is no exception. It's all about the design. Having one button matters. My previous horn had 3 buttons and the one to sound the horn was in the middle. It was hard to hit reliably without looking as is the case 90% of the time. This ROCKBROS horn is great that way, there's only one button and can be found fast by feel. The next great design feature is the whistle sound. It sounds like a police whistle and gets the attention of drivers. This unit is not as loud as my previous horn but it is adequate. Don't expect this to stay put on the handlebars with only the rubber strap. In my experience, no rubber strap you can pull tight without breaking is strong enough to hold the horn in place when you sound the alarm. Fortunately, this unit rests against my brake lever at an acceptable angle. YMMV. About the lack of rechargable battery, I have come around to it. I think this design holds up to the weather better; especially when transported at highway speeds on a rack. I think that was a factor in the demise of my previous horn.
B**H
Fits and bike and is LOUD with 3 different sounds
So easy to put in any bike with any size bar and LOUD! We used them for our NYC rides and loved them. People heard us coming and we passed more safely. Plus was how they fit any bike
J**L
ROCKB4OS Electra Bike Bell and horn
Gave to my brother. He liked it, but he told the horn isn't that loud.
M**S
Very Cool But Doesn’t Project Sound Well
Great bell with 3 noises. However it does NOT project well while cycling medium or fast paced - therefore 80%+ of folks don’t hear it or notice it as a warning bell. Had to buy another bell instead. It’s better perhaps for a kids bike for fun or for slower-moving cyclists.
U**L
Item Arrived Non-Functional
Just received this item, and had to order a replacement. Pressing the button to activate did absolutely nothing. It was DOA! I can see what some complained about regarding charging. There is NO charging port, and apparently no way to change the battery. Apparently this is a self-contained unit and when the battery dies, it is just dead and you have to purchase a replacement. Cannot say that I am happy about that and most likely would not purchase again, due to this. I also would hesitate to recommend the item for purchase, as you do not know how 'fresh' the battery is in it. Your usage period would be totally determined by how fresh the battery was, when you received it. You are essentially rolling the dice here. -------------------------------------------------------------------------------------------------------------------------- UPDATE: In the initial review, above, you pretty much get my initial reaction to this item. I then started looking closely at the item, finding that I could pull back the rubber covering from the item. Well, I kept pulling, to see what was underneath the covering. I found a 'battery tab', where you have to pull a covering item, which had been placed to prevent the battery from making contact and draining. I pulled the covering out, and tried the whistle, now that the battery was making contact. The horn worked!! BTW, there is a battery 'tray', so you CAN replace the battery, when needed. Without instructions it just was not obvious as to what was happening. I imagine others have also returned the item, thinking it did not work, due to the battery being prevented from being operational, until you removed the material preventing the battery from making contact. The replacement that I requested has already been shipped, so I could not cancel it. I will just keep both of them, and just have a spare. I would now give the item a FIVE STAR rating.
R**.
Excellent product!! Thank you.
Excellent product!! Thank you.
J**E
It works well and looks good in my bike.
This bell fits my handle bar with the grip wrap. There are only 3 sound choices but I found one that works. It does the job of warning those that I am approaching.
S**R
Good little compact horn, unsure of durabilty
This is a good bike horn design. It's compact, easy to use, mounts on a wide variety of bars. However I have not had good results with durability under the Rockbrothers brand. For the second time it stopped working after a few short months. The last time all was good until a battery change was needed after 8 months. This time, I began having reliability problems after four months. Sometimes works other times doesn't. I have one other like it without the Rock Bros label. It is still working fine after 2 years and at least one battery change. I'm only giving two stars now due to reliability and durability. As mentioned I also have a NO NAME device that looks just like it. Ive had that one for 2 yrs through a couple battery changes and it works fine. After another cyclist abruptly made a uturn today into my right chainstay as I was passing at 16 mph I am convinced of the need for a dependable horn. It was a pretty bad crash and I now ordered another horn, not a Rock Brothers. The new one cost less but takes longer to deliver. I am hoping this item works as well as my two year old NO NAME.
A**E
Sound quality
Best of quality for product quality price best
K**D
Useful
Important for rider in park loud sound too
A**R
Excelente
Tinham enviado apenas um. Reclamei. Mandaram o outro. Tudo 100%. Não se compara com um apito, mas chama a atenção das pessoas. Dos carros é impossível ouvir.
S**T
Does not work
I purchased two of these… one worked… the other did not. The one that worked though always moves and is not right against the handle bars. Not very loud either. I’m returning them both.Arrived BROKEN...DO NOT BUY!!!!! They are JUNK! and no communication from the seller. THAT should tell you something!
P**R
Replace metal strap instead of Silicon Strap
Everything is good except its silicon strap to tie with cycle steering, instead of silicon it should be of metal , aluminium for longer life, Silicon. Straps breaks due to heat , reuse again and again
Trustpilot
3 weeks ago
3 weeks ago