badassBox 4 TQ X-Set for TQ 2020-2022 motors

Derestrict your e-bike for a new 31mph (50km/h) speed limit!

eBike tuning kit for all TQ mid-mounted drives, with the sensor mounted in the dropout! Please refer to the sensor pictures and installation guide.

Regular price£140.00
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&Free Delivery Worldwide

You can save money when buying more than one tuning kit. Can be combined with other brand/type tuning kits!
Buy 2 save 3%
£140.00 £135.80
Buy 3 save 7%
£140.00 £130.20

GO FROM CAPTAIN SLOW OF YOUR CYCLING GROUP TO JIMMY JET!

- TOM E.

#1 SELLER
2 YEARS WARRANTY
PREMIUM CUSTOMER SUPPORT
FREE SHIPPING WORLDWIDE
EASY TO INSTALL
UNDETECTABLE

Compatible with TQ motors

Unlock the full potential of your ebike!

  • You will ride faster and experience the thrills of owning a derestricted ebike -you will love the difference!
  • Install it effortlessly - easy and fast installation!
  •  Feel safe for your e-bike and warranty - it's safe for ebike and undetectable to keep your warranty safe!

Quick plug-and-play installation. No setup!

  • Increase the speed limiter from original 16 mph (25km/h) to a new 31mph (50km/h) speed limit!
  • Fully undetectable! After BadassBox removal there is no way to tell if it has been used on your e-bike!
  • Get after-sales support from us and a two year warranty from BadassBox!

The bike feels completely different once derestricted - it's just like a whole different bike! The rides are so much more fun now! Tuning kits are safe to your bike and every ebiker should have one installed! You will love riding your ebike with it - guaranteed!

Matt - Owner of Two Wheels Empire

Frequently Asked Questions

The badassBox is attached to the speed sensor of the e-bike and overrides the 25 km/h speed limit - you can expect to reach speeds of up to 45-50km/h, depending on the bike and gearing. Your displayed speed will be 2 times slower than your real speed. We recommend the use of GPS-related accessories for a more precise data acquisition of driving data (smartphone, bike computer, etc.).

The contactless and wireless badassBox transmits a modified speed signal in order to override the speed limit of your e-bike – without interfering with the motor's electronic circuitry or software. There's no need to open the motor and there is no risk of damaging it, the BadassBox can be fitted or removed in seconds.



Attention, you only need this set if the sensor is integrated in the dropout (see red marked area in the 1st picture) of your bike.

If the sensor is easily accessible on your chainstay (see red marked area in the 2nd picture), you only need a badassBox 4 TQ.



A quality product designed, engineered and manufactured in Germany. The assembly requires a small conversion. Please read the instructions on the left before ordering!

The delivery includes the following parts:
- one badassBox 4 TQ
- one badassBox 4 housing cover
- one AAA battery
- one spoke magnet with thumb screw
- one Universal Adapter
- a pad made of elastic foam
- one M5 nut
- one washer
- one cylinder screw
- four cable ties



The integrated sensor is located in the area of the dropout. To get to the sensor you have to dismount the rear wheel.



Find the position of the integrated sensor* in the dropout of your e-bike. *The sensor shape shown is an example.



Undo the screws of the bracket that holds the sensor* is fastened to the dropout. *The sensor shape shown is an example.

Fasten the Universal Adapter with cylinder head screw, washer and nut (included in delivery) to the sensor*. *The sensor shape shown is an example.



Now you can attach the Universal Adapter with mounted sensor* on the chainstay with supplied cable ties. *The sensor shape shown is an example.



Slide the badassBox onto the adapter until it clicks into place. Reinstall the rear wheel. Mount the spoke magnet and align it with the edge of the badassBox housing. That's it. Have fun with your faster e-bike!

Please note that the operation of this 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 BadassBox products. Electric bikes equipped with BadassBox products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with BadassBox products can be used exclusively on private property and entirely at one’s own risk. The use of BadassBox products may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

BadassBox products are thoroughly tested and we stand by their quality - Badass Box provides 2 years warranty to all their products.

What Our Clients Say About It?

Who Are We?

From Riders to Riders

In Two Wheels Empire, we trust in innovation, premium quality and sustainability - that's what our business is about. Feel assured all our ebike products are carefully selected and we stand by them: if it's on offer here at Two Wheels Empire - it's been tested and selected by our team. Riders working with us are here to help you enjoy your ebike rides!

We are here to build an Empire, of people who strive for freedom, thrills and adventure, it's about time to make the best of your rides!