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* The price is inclusive of the dynamo and the USB charger, global shipment, and 1-year warranty
SPIN UP F12W-PRO Bicycle USB Charger Dynamo is a powerful and efficient bicycle dynamo that generates enough power to charge your gadgets and power your lights once you have reached a speed of 15km/h or more. A USB charger is specifically designed and included in the box to help achieve maximum effectiveness of the Dynamo. With a built-in Intelligent Power Management System (IPMS), the Dynamo will monitor your speed and cleverly decide which power source should be tapped into and how, so that the impact of any drag caused by the Dynamo will be minimized all the while you are provided with a stable out of a 1000mA electric current.
With its working temperature ranging between -25°C to 65°C and an IP rating of IPX4, SPIN UP F12W-PRO Bicycle USB Charger Dynamo is able to withstand extreme weather and tough terrain. Even the USB charger is water proof, which makes the Dynamo a reliable companion for your tours and adventures.
SPIN UP F12W-PRO Bicycle USB Charger Dynamo is designed to be mounted on your front wheel and driven by the bike spokes. Installation is simple and direct. You can easily DIY at home with the instruction and mounting component provided. No tweaking or adjustment is required once installed. You can also dismount it and install it on another bike if needed.
Intelligent Power Management System (IPMS)
This is a built-in micro control unit consisting of a cache battery and chips and designed to provide a fixed and stable 1000mA current output. It will automatically switch to low resistance mode (1/3 of the original) when your speed is lower than 13km/hr. During low resistance mode, 1/3 of the power will be provided by the dynamo while the remaining 2/3 provided by the battery.
Dynamo performance
Maximum power output of the Dynamo is 6V12W at 18 km/h. Taking off the 20% loss in the charging circuitry, the output is enough to support the USB charger (5W), the lights (3W), and the cache battery (1.6W).
USB charger performance
- Below 6 km/h : No power
- 6 ~ 15 km/h : Output 5W(5V1000mA) from cache battery
- Over 15 km/h : Output 5W(5V1000mA) directly
- Cache battery will continue to charge your gadget for 1 minute when you are making a brief stop
SPIN UP F12W-PRO, a new front-mount model added to SunUp Eco’s line of bike dynamos released to the market in late 2019, is a high-power low-drag 3-phase bicycle dynamo that promises to keep your smartphones and other electronic gadgets charged while you are pedaling along.
In this post I am going to show you how to install the SPIN UP F12W-PRO Bicycle USB Charger Dynamo. It is pretty easy and the box comes with detailed instructions and necessary tools. What I want to share with you are some little tricks that will make the process even easier.
Specs
| LOCATION | Front wheel |
| OUTPUT | DC6V12W |
| MATERIAL (dynamo shell) | Aluminium |
| MATERIAL (usb charger shell) | Fiber Reinforced Plastic Aluminium |
| WEIGHT (dynamo) | 370g |
| WEIGHT (USB charger) | 125g |
| WORKING TEMPERATURE | -25°C ~ 65°C |
| SPEED LIMIT | 70km/hr |
| IP RATING | IPX4 |
| PATENT | Main Countries |
| WARRANTY PERIOD | 1 Year |
| SPIN UP F12W-PRO Bicycle Dynamo |
| SPIN UP F12W-PRO Bicycle USB Charger |
| Mounting component |
| Parts package |
| SPIN UP F12W-PRO Bicycle Dynamo installation instruction |
| 1-year Warranty Card |
Frequently Asked Questions
SPIN UP F12W-PRO Bicycle USB Charger Dynamo is designed for most wire-spoked wheels that meet the following two requirements:
- Outside diameter of the hub flange is less than 67mm.
- There is enough clearance between the spokes and the fork. SPIN UP F12W-PRO Bicycle USB Charger Dynamo is mounted on the drive side of the front wheel, therefore you will need enough space for the Dynamo’s ring. It means if your front wheel has 2-cross or 3-cross spoke pattern, you will need a minimum clearance of 9.4mm at the radius of 36mm. If your front wheel has radial spoke pattern, you will need a minimum clearance of 11.4mm
Reference: spoke pattern
As long as there is enough clearance between the forks and the spokes as mentioned in Q1, it should be compatible.
Yes. The Dynamo is mounted on the right hand side of the front wheel, while Disc Brakes are found on the left hand side.
Yes, but you need to pay special attention to make sure that the dynamo is centred with the wheel during installation. SPIN UP F12W-PRO Bicycle USB Charger Dynamo comes with an assistive holder (mounting component) for your wheel to keep it lying stably on a surface so that you can focus on working with the screws. But the aligning and locking of the Dynamo to the centre of the wheel only works with a 5mm quick release skewer. You will not be able to secure the wheel to the centre with bikes of Thru Axle wheel attachment systems because most Thru Axles have bigger diameters. Please refer to this video for detailed instruction on installation.
We recommend installing the Dynamo on 26” or 700C wheels with spokes. All the data and test results mentioned in the product description were collected when wheels of these two sizes were used.
SPIN UP F12W-PRO Bicycle USB Charger Dynamo is not just a dynamo. It is also an efficient power management and regulation system that produces a stable power source that can charge your electronic devices directly. The system is designed to work with a wide range of speeds (6km/h to 70km/h) that we see on most bikes. But the circuit is not designed to handle the massive amount of energy generated by the Dynamo when the bike is travelling over 70km/h. When this happens, it may cause irreversible damage to the Dynamo.
Yes, but you will notice that the Dynamo will start charging at a lower speed. For example, for a 26” wheel, the Dynamo will only start charging when your speed has reached 6km/h. But when you are using a 20” wheel, the system will start charging at 6 x 20/26 = 4.6km/h. And the speed limit will become 70 x 20/26 = 54km/h.
Yes. The output of the Dynamo is 12W, which is more than enough to power your lights and the USB charger at the same time. We provide an extra pair of wire on the USB charger for connecting the LED lights. The Dynamo can power a 3W light set and charge your devices at the same time. You may purchase Herrmans Dynamo LED lights set from us.
When you're starting or climbing at less than 6km/h, the Dynamo generates no electricity. The drag from the dynamo is merely the minimal friction from the gear and bearing of the Dynamo. When the Dynamo starts to generate electricity, there will inevitably be resistance as dictated by the law of physics. But, as regulated by the Intelligent Power Management System (IPMS), when the bike is travelling at a speed of between 6km/h - 15km/h, the system will only tap partially from the Dynamo for energy to minimise the impact of the drag. The dynamo will only operate at full throttle when you are cruising at the speed of over 18km/h (i.e. when kinetic energy is abundant). Therefore it's safe to say that the Dynamo will impose minimal impact on how how far you can go when touring.
It depends on the capacity of your phone's battery and the amount of power your phone is consuming while it is being charged. The Dynamo supplies 1A at its USB port (5W) when your bike reaches the speed of 15km/h. A test has been conducted to charge an iPhone 11 Pro with an empty battery. It took less than 2.5 hours to charge it from 0% to 90% when the iPhone was put to low power airplane mode. The last 10% took around 35 minutes to be charged because batteries accept less power and charge slower when they are almost full. Detailed report can be found here.