NULKOMMA KD718 E-Bike LCD Display Review 2026: Worth $125 for a 36V/48V Conversion Upgrade?
The NULKOMMA KD718 is a replacement e-bike LCD display meter — not a complete electric bike. It adds a 3.86-inch TFT screen to existing 36V or 48V systems, but costs $125 for display functionality alone.
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Best For
How this e-bike scores for different riding styles
The display itself is lightweight at 150 grams and compact at 3.86 inches, but this is just a component. It adds minimal bulk to any bike but isn't a portable transportation solution.
While it supports 36V and 48V systems which are used on performance bikes, the display itself provides no performance capability. It only shows speed and other metrics.
This is a replacement display component, not a complete e-bike. It cannot be used for commuting on its own and only serves as an accessory for existing electric bikes.
As a display meter component only, this product has no off-road capabilities. It's a replacement part that shows information but doesn't enable any riding functionality.
This display component cannot be used for recreational riding. It's an accessory that provides information display functionality for bikes that already exist.
A display meter has no cargo or utility capabilities. It's a handlebar-mounted information screen, not a transportation or hauling solution.
Our Verdict
The NULKOMMA KD718 is a replacement LCD display meter designed for existing electric bikes, not a rideable e-bike. It outputs speed, battery charge level, and ride data on a 3.86-inch TFT screen, supporting 36V and 48V electrical systems.
At 150 grams, the KD718 adds minimal weight during conversion kit installation. The waterproof housing handles rain exposure without damage, making it viable for commute and city riding conditions.
Handlebar compatibility spans 22.2mm to 31.8mm diameter, covering a wide range of e-bike frames including aluminum and carbon steel builds. The seller requires a post-purchase model confirmation step — adding delay before you can complete the conversion.
At $125, the KD718 delivers display-only value. No motor wattage, no battery amp-hours, and no range extension come with the purchase. Riders replacing a broken display on a HIMIWAY or compatible 36V/48V e-bike will find the most value here. For $125, the cost-per-feature is high compared to mid-range display alternatives priced at $40–$80.
What We Like
- Supports both 36V and 48V electric bike systems, covering the two most common ebike voltage ranges
- Waterproof housing survives rain during commute and city riding without signal loss
- Fits handlebars from 22.2mm to 31.8mm diameter, compatible with most aluminum and carbon steel e-bike frames
- Weighs only 150 grams, adding negligible load to the front handlebar area
- 3.86-inch TFT LCD screen displays speed, battery charge level, and pedal assist levels with clear visibility
What Could Be Better
- At $125, costs 2–3x the price of comparable mid-range e-bike display meters ($40–$80 range)
- Requires post-purchase model confirmation from the seller, delaying installation by 1–3 days
- Display-only function with no GPS, no smartphone connectivity, and no watt or torque readout
- Primarily optimized for HIMIWAY electric bikes, limiting universal compatibility across other e-bike brands
- No motor, battery amp-hours, or range improvement included — $125 delivers no riding performance gain
Standout Features
Frequently Asked Questions
Common questions aboutElectric Bicycle LCD Display Meter Key-DISP KD718 ebike Display TFT 36V 48V Speed for Electric Bike Computer Waterproof E-Bike Display Meter Conversion Kit for Electric Scooter Modification
Is this a complete electric bike?
No, this is only a display meter component. You need an existing electric bike to attach this to. It does not include a motor, battery, frame, or wheels.
What voltage systems does this display work with?
The KD718 display works with both 36V and 48V electric bike systems. This covers most common e-bike electrical configurations.
Will this display fit my bike's handlebars?
It fits handlebars with diameters of 22.2mm, 25.4mm, 28.6mm, and 31.8mm. Measure your handlebar diameter before purchasing to confirm fit.
Can I use this display in the rain?
Yes, the display has a waterproof design. You can ride in rainy weather without damaging the LCD screen or electronics.
What information does the display show?
The product description does not list specific display functions. It's designed to show speed and work as a bike computer, but exact data fields are not specified.
Best For
How this e-bike scores for different riding styles
The display itself is lightweight at 150 grams and compact at 3.86 inches, but this is just a component. It adds minimal bulk to any bike but isn't a portable transportation solution.
While it supports 36V and 48V systems which are used on performance bikes, the display itself provides no performance capability. It only shows speed and other metrics.
This is a replacement display component, not a complete e-bike. It cannot be used for commuting on its own and only serves as an accessory for existing electric bikes.
As a display meter component only, this product has no off-road capabilities. It's a replacement part that shows information but doesn't enable any riding functionality.
This display component cannot be used for recreational riding. It's an accessory that provides information display functionality for bikes that already exist.
A display meter has no cargo or utility capabilities. It's a handlebar-mounted information screen, not a transportation or hauling solution.
Scores
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