Speed limiter: suppressed
Display shows: actual values
Activated by: WALK button

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Product code: SB2G_SDEVO

179 € incl. VAT

In Stock

SpeedBox for Giant 2017-2018 is a revolutionary process-control module which suppresses the speed limiter of your electric bike.
The display will show the actual speed, also other data such as maximum speed, average speed, daily distance travelled and range are correctly displayed.

If you have a new bike which hasn't been ridden at all, you must ride it at least 1 or 2 kilometers before you install the SpeedBox tuning kit.

The SpeedBox tuning kit is activated by briefly pressing the WALK button, which is located at the front of the control panel. After pressing this button, the current speed of 9.9 km/h will be displayed on the control panel for about 3 seconds. This confirms that the SpeedBox  tuning kit has been activated, and the supplementary assistance of your electric motor now works up to a speed of 99 km/h.

When the WALK button is pressed again, the current speed of 2.5 km/h will be displayed. This confirms that the SpeedBox tuning kit has been deactivated, and everything will work as if the speedbox had never been installed. The supplementary assistance of your electric bike now works up to its original speed limit of 25 km/h.

Please note that the operation of these type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of SpeedBox1 or SpeedBox2 products. Electric bikes equipped with the SpeedBox1 or SpeedBox2 products are not allowed on public roads, bike paths and in public places. Electric bikes equipped with SpeedBox1 or SpeedBox2 products can be used exclusively on private property and entirely at one's own risk. The use of SpeedBox1 and/or SpeedBox2 may void the warranty of your ebike.

SpeedBox2 for Giant 2017/2018:

28. 09. 2017, 19:26

Work excellent with Giant Syncro drive pro engine
Grate job

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03. 07. 2018, 08:29

Fantastic product, seamlessly tapping into the vast reserve of Giant SyncDrive Sport motor without changing the way motor delivers power or draining ... More

Not really a fault of product, but found it challenging find any spare room within the motor cradle to accommodate Speed Box 2 module and cables. More

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14. 07. 2018, 21:19

Fantastic stuff

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18. 10. 2018, 20:45

Working as described.

Assembly lines diffrent colours than in video. Pedal metal ring also diffrent disasembly than in video. Overall its actualy easy-er to disasemble than ...

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03. 11. 2018, 09:03

Excelent product just what i needed, driving to work is now even funnier with the extra speed boost without risking battery power specially using eco ... More


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Terry 01. 04. 2019, 16:46

I live in Canada and have a 2018 Giant Quick E with a cutoff speed of 32 km/h. Will the Speedbox 2 or Premium work on my bike? Will my speed options now drop to 25 km/h and 99 km/h or will the lower speed stay at 32km/h with an upper limit of 99 km/h?
Thank you

Jiří Voldán (Sales Manager) Administrator 01. 04. 2019 | 16:46

Hi Terry, SpeedBox will work. Lower limit remains same.

Luis Guzm 17. 03. 2019, 23:38

Can you assist with this question.

In the description says that after deactivating the speed box my ebike will go back to 25 km/h limit,.
I have a Giant E-Bike Explore E+ 3 GTS 2018 and in Canada is limited to 32 km/h (20 mph). My question is if i install speed box platinum will my E bike go down to 25 km/h after deactivating Speed Box?
Or it will go back to the original 20 mph?
Waiting for your answer.

Kev 14. 01. 2019, 15:41

Hi there, please can you tell me which speed box is compatible with my giant full e+2 2017

Jiří Voldán (Sales Manager) Administrator 14. 01. 2019 | 15:41

Hello. This SpeedBox is fully compatible with your eBike:


Gavin Stronach 11. 01. 2019, 23:05

Hi I have just bought a Giant Explore E+1 (2019 version) with Syncdrive sport motor, please confirm which version Speedbox 2 I require? thanks Gavin

Jiří Voldán (Sales Manager) Administrator 11. 01. 2019 | 23:05

Hi Gavin, this is what you looking for:


Ricardo Amezquita 05. 01. 2019, 07:32


I just received and installed ny speedbox 2 on my Giant thoughroad e 2018 (yamaha syncdrive sport) which is limited to 20 mph. I have two questions.

1. The install went fine altough a nut full of grease (green) dropped from somewhere, I couldn't find where did it came from so I didn't put it back (it dropped when I had the motor hanging from the rear bolt. Any ideas?

2. When I press walt button it shows 6,1 mph (which is equivalent to 9.9 kmh) and when I press again it shows 1,5 mph (equivalent to 2.4 kmh). Is it restricting it below the original 20 mph?

3. I dont feel too much the help after 20 mph, but there is definatetly some help that takes me to around 22mph, is that it?

Thank you

Jiří Voldán (Sales Manager) Administrator 05. 01. 2019 | 07:32

Hello Ricardo,

1 - Never heard of it. Ask your seller.

2 - This causes your display set to mph. Everything's ok. 1.5 - SB2 deactivated / 6.1. SB2 activated

3 - Restriction in Europe is 25 kph (16 mph). SpeedBox2 for Giant allows you to ride up to 55 kph (34 mph). I think you should be able to reach like 38 kph (24 mph) with original front sprocket. To reach higher speed, please let your mechanic change your front sprocket for different one with more teeth. Then you'll be able to reach the maximum from your eBike. Now you're just pchysically not able to ride that fast because of the sprocket.

Design of products

Design of products

Although appearance is not very important for SpeedBox, we want it to excel among others and be among the designer pieces. Components made of high-quality material gives SpeedBox not only mechanical strength, durability and water resistance, but also an attractive appearance.

Top quality

Top quality

We use only electronic components of world's leading producers, during the production of SpeedBox. The processor is certified for the automotive industry, and the SpeedBox is tested several times during and after production to make sure you receive a reliable product.

Easy installation

Easy installation

We use the original keyed connectors to connect the SpeedBox to the electric bike, which are colour coded so you know exactly where to connect the connector. We've put together detailed instructions and videos which could help you easily install the SpeedBox by yourself.