---
product_id: 94356357
title: "WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y))"
brand: "wuxing"
price: "€ 0.84"
currency: EUR
in_stock: false
reviews_count: 4
url: https://www.desertcart.es/products/94356357-wuxing-electric-bicycle-thumb-throttle-ft-21x-finger-throttle-accelerator
store_origin: ES
region: Spain
---

# 12-72V universal voltage Waterproof wire option Easy install on 22mm handlebars WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y))

**Brand:** wuxing
**Price:** € 0.84
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Take control of your ride with precision and power!

## Quick Answers

- **What is this?** WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) by wuxing
- **How much does it cost?** € 0.84 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/94356357-wuxing-electric-bicycle-thumb-throttle-ft-21x-finger-throttle-accelerator)

## Best For

- wuxing enthusiasts

## Why This Product

- Trusted wuxing brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Installation:** Right-hand design fits most electric bikes and scooters with a simple 22mm handlebar clamp.
- • **Precision Speed Control:** Smooth finger throttle ensures responsive acceleration every ride.
- • **Durable ABS Construction:** High-quality ABS material built to last through all your urban adventures.
- • **Waterproof Wiring Options:** Choose between standard or waterproof connectors for reliable performance rain or shine.
- • **Universal Voltage Compatibility:** Works seamlessly with 12-72V e-bike systems for ultimate flexibility.

## Overview

The WUXING FT-21X Electric Bicycle Thumb Throttle is a versatile, high-quality finger throttle designed for 12-72V e-bikes and scooters. Made from durable ABS material, it features easy installation on 22mm handlebars and offers both standard and waterproof wiring options, ensuring smooth and reliable speed control for a wide range of electric bike motor controllers.

## Description



## Features

- Ebike Thumb Throttle Feature: Long life, High Quality ABS Material, For Electric Bicycle, Scooter, Razor and More.
- 12-72V Electric Bike Universal, Finger Throttle Suitbale for Bike Hub Motor, BBS01 BBS02 TSDZ MXUS KUNRAY E-bike Hub Wheel Motor Controller.
- Two Type Wire Plugs: Speed Control Throttle With Normal Connector and Waterproof Plug, Can Use for Normal Brushless DC Controller and KT Controller, Water proof Wire.
- Right Hand Finger Throttle: Easy To Install and Smooth For Use, Compatible for Most Electric Bike, Electric Bicycle, Mountain Bikes MTB, Folding Ebike Scooter with 22mm Handlebar Tube.
- Cable length: SM-3Y connector throttle valve 150 cm (59 inches) length cable, waterproof plug 29 cm (11.4 inches), diameter 22 mm. The SM-3Y plug and waterproof connector are both 3-pin and female connectors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | WUXING |
| Speed | 21 RPM |
| Voltage | 12 Volts, 72 Volts |
| Material | ABS |
| Manufacturer | Kunray |
| UPC | 734779299302 |
| Item Package Dimensions L x W x H | 5.59 x 3.15 x 1.65 inches |
| Package Weight | 0.05 Kilograms |
| Brand Name | WUXING |

## Product Details

- **Brand:** WUXING
- **Speed:** 21 RPM
- **Voltage:** 12 Volts, 72 Volts
- **Material:** ABS
- **Manufacturer:** Kunray

## Images

![WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) - Image 1](https://m.media-amazon.com/images/I/51Ql-GvUOKL.jpg)
![WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) - Image 2](https://m.media-amazon.com/images/I/419sPBTLHmL.jpg)
![WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) - Image 3](https://m.media-amazon.com/images/I/71UnaGubf8L.jpg)
![WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) - Image 4](https://m.media-amazon.com/images/I/61fETdyQEUL.jpg)
![WUXING Electric Bicycle Thumb Throttle, FT-21X Finger Throttle Accelerator, Speed Control for Ebike Pocket Razor Scooter Accessories Part, 12-72V Universal (Normal Plug (SM-3Y)) - Image 5](https://m.media-amazon.com/images/I/518cXpctfvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with my AddMotor bike after simple modification
*by J***N on July 7, 2021*

I suspect AddMotor uses a different pin mapping for their +5V, (-)Negative, and speed signal than this plug, possibly all plugs, and they do not sell a thumb throttle so I had to order one.Simply cutting the plugs alignment key with a razorblade allowed me to plug it in with a different pin on top, and then the throttle worked. Easy fix

### ⭐ Does not work with Himiway ebikes
*by C***S on September 18, 2022*

Kept getting an error code and would not engage motor.

### ⭐⭐⭐⭐⭐ Works Great!
*by S***R on February 14, 2022*

I accidentally smashed my original thumb throttle. Oops. This one is affordable and works great!The red/black/yellow wires don't exactly match the red/black/white wires from my controller. But I connected the reds, the blacks, and the yellow to the white and it worked fine!

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**Shop now:** [https://www.desertcart.es/products/94356357-wuxing-electric-bicycle-thumb-throttle-ft-21x-finger-throttle-accelerator](https://www.desertcart.es/products/94356357-wuxing-electric-bicycle-thumb-throttle-ft-21x-finger-throttle-accelerator)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-25*