Search  for anything...

Redcomets USB Rechargeable Bike Handlebar Extender,7.8in Bike Handlebar Extension and Built-in 4000mAh Bike Phone Charger, for Holding Bike Speedometer, Phone Mount Holder and Bike Lights.

  • Based on 823 reviews
Condition: New
Checking for the best price...
$19.98 Why this price?
Save $10.01 was $29.99

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, May 21
Order within 18 hours and 7 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • USB Charger and Power BankThe bike handlebar extender with rechargeable feature ,It can charged by USB port of computer or other power supply. You can use it to charge your phone,don't worry that your phone will power off outdoors. ensure the charging spot remains closed on rainy days.
  • Sturdy and DurableThe clamps are well designed and sturdy, made of light aluminum alloy which is durable and resistant to corrosion, rusting, or color fading.The screw buckle is durable. Use high quality screws, double protection. Equipped with hexagon wrench, easy to install and detach, use and adjust.
  • Multifunctional Bicycle Extender-The practical bike rack adds extra space to your bike, used to fix bike lights, speedometers, GPS devices, smart phone racks, etc.
  • CompatibilityThe bike handlebar extender fit most bikes, suitable for various handlebar sizes ranging from a diameter of 22 mm to 31.8 mm.
  • Excellent Customer ServiceIf anything goes wrong with the item, please contact us at any time, we will provide you with customer service in 24 hours.This bike handlebar extender is also an excellent gift for your lover, family or friends.

Color: Black


Brand: Redcomets


Material: Aluminum


Product Dimensions: 7.8"L x 0.87"W


Item Weight: 0.44 Pounds


Manufacturer: ‎Redcomets


Brand: ‎Redcomets


Model: ‎TZ-X


Item Weight: ‎7 ounces


Product Dimensions: ‎7.8 x 0.87 x 0.04 inches


Item model number: ‎TZ-X


Batteries: ‎2 Lithium Polymer batteries required. (included)


Exterior: ‎Polished


Manufacturer Part Number: ‎TZ-X


Special Features: ‎Extendable


Date First Available: November 4, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Faith Renewed
I was so hopeful when I received this yesterday and out off the box the charging function did not work. I then contacted Amazon who shipped me a replacement over night. It's now installed and working. There were some bad reviews that have merit. One, no matter how tight I make the screws it's still not secure. I secured the bar with a small black zip ties. Now it's exactly where I want it to be and it's secure. The second was the battery. I replaced the low grade battery from China with higher end JESSY 18650 batteries bought from Amazon. I don't know for sure but I am hopeful these new batteries will have greater performance and duration. I'm give this fixes a week and update this review. ... show more
Reviewed in the United States on October 1, 2024 by Marvin Robinson Marvin Robinson

  • Has replaceable batteries
Fits nicely keeps things moving
Reviewed in the United States on January 29, 2026 by Steve

  • Doesn’t stay charge long
Doesn’t stay charge for long even being plugged in for hours
Reviewed in the United States on February 8, 2026 by Isaacc arnaldy

  • Bad clamp tolerances.
Junk clamps. I cannot mount this properly. The included clamps do not clamp tight (even though the description says 31.8mm clamp) without the shim and with the thinnest shim, the bolt angle wants to cross thread. When I finally squeezed the clamp enough to start threading but even when fully tightened, it just wants to spin on the cheap rubber shim. Not secure at all. Imagine losing your phone or expensive action camera because of a cheap junk clamp. I have mounted hundreds of things on handlebars and I have never struggled like this. I felt so stupid until I realized it wasn’t me that was the problem. So no actual review of what this actually does because I can’t use it. It’s too heavy to lug around without anything mounted to it. Foiled again. Maybe the folks with 22mm bars will have better luck. ... show more
Reviewed in the United States on February 8, 2026 by Jess Jess

  • Great charging device
When your on extended bike rides and need to recharge this product gives you that ability. I’ve used it for my cell phone safety lights and it was incredibly eases to install and accepts type c chargers . Great product.
Reviewed in the United States on November 20, 2025 by Walter Touchette

  • like the product but could be better
i like the product it could be better, no directions on how to charge the unit, the usb c only works for charging the unit im guessing, the usb a can charge other devices so if you have a usb a to usb c you can charge your device if its usb a to micro usb but need a usb c youll need an adapter which amazon sells otherwise great product if you dont mind using different cables or adapter ... show more
Reviewed in the United States on October 24, 2025 by Anthony Guastavino

  • Just got it delivered, so I have only installed it, will update after using it for a few days.
My initial impression of it is that it seems to be made of quality lightweight materials and have good durability, has a new look, with adequate space making its functionality good. It was easy to install and seems secure i will update after I use it some.
Reviewed in the United States on January 18, 2026 by Justin Schexnayder

  • A great addition to my bike.
This is a nice addition to my ebike. It allows me to space out all the accessories I have which results in an organized and balanced layout. I have a phone holder and a bell on this extender. Thanks to the spacing the bell sounds awesome.
Reviewed in the United States on January 18, 2026 by T.M.

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...