An e-MTB as versatile as you: FOCUS THRON²

The THRON² gets much more out of every ride thanks to the Bosch Performance CX e-drive and a battery with up to 750 Wh. With 120 to 130 mm suspension travel and 29" wheels, it is the perfect e-MTB for endless tours in the forest, but also suitable for light trails. What makes the THRON² particularly versatile: the retrofit options for rack, fenders, lighting system, and kickstand open up new possibilities for you, from bikepacking to commuting. The THRON² EQP models are already fully equipped as standard and also available with Bosch ABS which makes your ride particularly safe as it prevents your wheels from locking up during braking.

Technical support for the thron²

thron² Faq
thron² downloads

ABS

Which THRON² models have ABS?

All THRON² models with ABS in the name are equipped with Bosch ABS: THRON² 6.8 ABS and THRON² 6.9 ABS. Unfortunately, we have to disappoint you if you want to retrofit the THRON² 6.7 with ABS. This is not approved and is not recommended with the other components installed.

How does the ABS system work?

The Bosch ABS system makes it easier to brake safely. This has two decisive advantages when braking: Skidding front wheels and going over the handlebars are now a thing of the past. Sensors monitor the front wheel speed. If things get dicey and the front wheel threatens to lock up, the ABS regulates the braking pressure. This provides significantly more control, especially on loose gravel and in wet conditions. At the same time, it prevents the rear wheel from lifting during heavy braking. In addition to the safety feature, the ABS also has a trail mode. This adjusts the brake assistance more quickly to changes in the terrain and is more responsive. This has a noticeable effect on riding enjoyment and manoeuvring on the trail – and thus ensures more confidence on the trail.

Which ABS modes are installed on the THRON² models?

The THRON² is equipped with the Allroad and Trail ABS modes. In addition, the ABS can also be switched off.

Where can I choose between the different ABS modes in the menu?

In the settings on your KIOX, the first item is ABS. You can then choose between the different modes.

When does the ABS system work?

The ABS system supports you in many braking situations. To make it work, the e-bike must be started and accelerated once above 6 km/h. The ABS system also works at speeds above 25 km/h, even when the e-bike is no longer supported.

What can I do if ABS errors are displayed?

If errors are displayed for the ABS system, please contact your FOCUS dealer immediately.

Parts

Does the THRON² have a chain guide?

The THRON² already has an integrated chain guide.

How much drop has the dropper post?

You can find this information per size in the specs under ‘seatpost’. The drop differs depending on the seatpost fitted.

Can I change my dropper post?

Yes, all our THRON² models are specced with a dropper post. The dimensions are: 34,9 mm diameter and a maximum insertion depth per size: S: 220 mm; M: 250 mm; L: 270 mm; XL: 290 mm.

Can I change the drop of my dropper post?

Yes, the in-house post moderne dropper post can be reduced in travel using the spacers included in the scope of delivery.

Can I change to electronic shifting/ mechanical shifting?

Yes, both is possible.

What kind of headset does the THRON² use?

The THRON² uses headsets with ZS56/ZS66 standard.

Can I change the length of the stem?

You can order a different stem length via your dealer. All cables run directly into the frame below the stem, so you don’t have to open brake lines or shifting cables when changing the stem. But you should consider the following: Switching to a longer stem might require longer cables. Make sure the cables are long enough. Switching to a shorter stem might lead to long cables which could be shortened for a cleaner look. Here are all stem lengths with their order number:
Art. No. 250002700 C.I.S. 2.0 stem 50 mm lang
Art. No. 250002600 C.I.S. 2.0 stem 40 mm lang

How can I switch the lighting on and off?

The lighting can be switched on and off by pressing and holding the plus button.

Can I convert the THRON² so that it has mudguards, a rack, a light and a stand like the THRON² EQP?

Yes, that's possible. The rear light of the THRON² has to be removed. All screw points for the mudguard, top load carrier and pannier rack and kickstand are already in place. Stands that fit our standard should have the 40mm standard mount. A light cable for a front light is already prepared in the down tube. But be aware: the standard THRON² tyres are a bit too wide for the mudguard upgrade kit. You can use a maximum of 62 mm wide tyres here. To purchase the EQP kit (item no: Carrier Set: 31303810002; item no. Fender & Carrier Set: 31303810001), please contact your local FOCUS dealer.

C.I.S. 2.0

What kind of stem do the different THRON² models have?

All models are equipped with our C.I.S. 2.0 stem with a length of 50 mm as standard.

Dimensions / Standards

What is the fork standard?

The headset is sized for forks with 1 1/8" - 1,8" steerer. The travel must be 160 mm. Also check all other standards like post mount, axle dimensions, etc., if you want to change your fork. Additionally, the one you choose has to be approved for 150 kg system weight by the manufacturer. If you are in doubt, please contact your local FOCUS dealer.

What is the maximum brake rotor dimension?

You can use a maximum rotor dimension of 223 mm.

What is the maximum insertion depth of the seat post?

The maximum insertion depth of the seat post in the frame depends on your frame size: S: 220 mm; M: 250 mm; L: 270 mm; XL: 290 mm.

What is the maximum system weight?

The total weight limit is 150 kg for the THRON². It includes the weight of the bike, the rider and all equipment.

What is the maximum tire width?

The maximum tyre width is 2.6‘ or 66 mm (29’ wheels).
Please note: If you want to retrofit mudguards, the maximum tyre width is 2.4’ or 62 mm.

What is the wheelsize? Can I change the wheelsize?

The THRON² comes with 29" wheels. We do not recommend changing to a different wheel size. It is designed for 29" wheels exclusively.

Which groupsets do fit? With what dimensions?

The largest chainring you can use has 36 teeth, the biggest cassette up to 52 teeth.

I need more details on dimensions (shock standard, bottom bracket, headset, etc.).

Please see the exploded drawing for all details:
THRON² MY25

E-bike

What do I do in case of material damage at my bike?

Judging a damage from the outside or based on a picture is almost impossible. In case of damage, you should visit your FOCUS dealer.

Can I buy a replacement battery and a replacement charger?

Replacement batteries and chargers for our bikes with BOSCH motors can be purchased through your FOCUS dealer at BOSCH. Pay attention to compatibility with the BOSCH Smart System

Battery: BOSCH PowerTube 600/800
Charger: BOSCH Standard (Smart System)

Can I change the battery size/capacity?

Yes, the THRON² 6. series is available with both the compact 600 Wh battery and the larger 800 Wh battery. Both are removable and differ only in the larger cover for the down tube. In addition, the THRON² is compatible with the 250 Wh range extender in all sizes. That means: four battery configurations from 600 to a whopping 1050 Wh.

What parts parts do I need to change battery size?

Other than the new battery of course, you only need the fitting down tube cover (600 Wh: Art.No. 998929000; 800 Wh: Art.No. 998930000). Please contact your local dealer about this.

Can I connect a light or other equipment to the battery?

Yes, that is possible. If a front light is to be retrofitted, the light cable has already been laid in the down tube for this purpose. It can be found in the upper part of the down tube behind the battery. Please contact the FOCUS dealer in your area.

Can I connect my smartphone to the bike?

Yes, you can control all functions of the Smart System with the e-Bike Flow app and also customise ride modes to your liking.
See Bosch Flow App for more information
With the KIOX displays of the THRON² 6.9 ABS and THRON² 6.8 ABS, you can even navigate.

Can I tune my e-bike?

No, that's not possible.

How do I do a firmware update? Is it recommended?

We recommend getting updates for your bike. If there is a new firmware, you can update your e-bike firmware via the Bosch e-Bike Flow app or ask your local dealer.

How do I get my battery out?

Remove the cover with the locking system, turn the key, press the button on the top of the battery and hold the battery. Be careful not to drop the heavy battery.

How far can I ride with the THRON²?

There is no definite answer to that. Different factors have an impact on your range. Your weight, riding type, the terrain you ride, which support mode you prefer and and even the temperatures can influence how long your battery will last. Use the Bosch website beforehand to make an educated guess which battery size fits you best: Bosch range assistant.
Or you check out different scenarios here: Bosch Performance CX.
When you buy it, make sure you get the right battery size or ask your local dealer for help if you are not sure if 600 Wh or 800 Wh is the best battery size for you. Keep in mind that the THRON² offers full exchangeability between those two battery sizes and is compatible with the 250 Wh range extender for all sizes.

What parts am I allowed to change at my e-bike?

For changing wear parts and components, only use original spare parts. Besides original spare parts, it is allowed to use compatible parts that have been explicitly approved by us. If you are in doubt, please contact your local FOCUS dealer or ask our customer service.

Can I add a range extender?

Yes, all THRON² MY25 models in all sizes are compatible with the PowerMore 250 Wh range extender.

Cable, in the length we recommend for the range extender - Model code: BCH3925_100; Article number BOSCH for your local FOCUS dealer: EB12.120.04D
PowerMore 250Wh - Model code: BBP3620; Article number BOSCH for your local FOCUS dealer: EB12.100.02S
Holder PowerMore - [No Modelcode]; Article number BOSCH for your local FOCUS dealer: EB12.110.01A
Screw M5x12, needed x2 - [No Modelcode]; Article number BOSCH for your local FOCUS dealer: EB12.110.01B
Bottle Cage for PowerMore Holder- [No Modelcode]; Article number BOSCH for your local FOCUS dealer: EB12.100.03W

There are also kits available on the aftermarket for the Power More with PowerMore 250Wh, mounting plate incl. screws and the bottle cage. Cables must then be purchased in the appropriate length.

How much does the batteries weigh?

The MY25 battery weights are approximately 3,0 kg for the 600 Wh battery and 3,9 kg for the 800 Wh battery.

Where is the charge port for charging the THRON²?

The THRON² can be charged via a charge port on the seat tube or directly on the removed battery.

I need more detailed information on the e-drive.

Please check out:
Bosch Performance CX

Can I add a Bosch connect module?

Yes, there is space for a Bosch ConnectModule under the motor cover. However, it is not included in the scope of delivery and requires an additional paid subscription if it is retrofitted.

I get an error message when connecting the range extender. What do I have to do?

In the case of error message F10004, the software version of your e-bike does not match that of your Range Extender. You can fix this by updating via the Bosch Flow app. The range extender must be connected to your e-bike for this. Alternatively, you can also go to your FOCUS dealer who can install the update for you.

Equipment

Can I attach a bike trailer?

Yes, the THRON² is approved for the attachment of a bicycle trailer. Please note the authorised total weight of 150 kg.

Does the THRON² have a storage box or bag? Which sizes feature one?

The THRON² comes with threads. No bag is included in the scope of delivery. Sizes M-XL have threads to screw on a bag or mounting plate. Unfortunately, we cannot use threads for size S due to the frame size in combination with the battery.

How can mount an Airtag or Chipolo via the integrated mounting options?

An Apple Airtag or Chipolo Gen. 2 can be placed in the down tube under the battery. To do this, two cable clips must be pushed together to attach the Airtag or Chipolo. Then the cable clips must be pulled together with two cable ties to clamp the Airtag or Chipolo. The whole thing is then hidden and locked by the reinserted and closed battery.

What is in the scope of delivery for the THRON²?

All parts required for changing the display or mounting a GoPro are included. All spacers for reducing the suspension travel of the dropper post are also included.

Suspension

I want a different fork. What do I need to take into account?

Our advice is to use the specced fork because we optimised it for the bike's kinematics and its use case. If you want to change your fork, the one you choose has to be approved for 150 kg system weight by the manufacturer. The headset is sized for fork steerer with 1 1/8" - 1,8". Please check the steerer dimensions of your new fork and choose the matching base plate. You can get the matching base plate by our dealer. The travel must be 160 mm. Also check all the other standards such as post mount, axle dimensions and ABS mounting point, etc. If in doubt, contact your local FOCUS dealer.

I want a different shock. What do I need to take into account?

Our advice is to use the specced shock because we optimised it for the bike's kinematics and its use case. If you still want to change it, you should speak to your local FOCUS dealer and try if another one fits. As there are many shock models in the market, we cannot guarantee that another one will work. The shock dimensions are 210 x 55 mm // 25 x 8 / no bushing.

How much travel has the THRON²?

The THRON² has 150 mm of travel at the fork and 140 mm at the rear triangle.

Technology

Doesn't the THRON² feature a flip chip?

No, the THRON² does not have a flip chip.

I want to ride with less spacers. Is this possible?

Yes it is possible to remove spacers. All cables run directly into the frame below the stem, so you don’t have to open brake lines or shifting cables when changing the height of your cockpit.

Can I change the Bosch display?

All THRON² are compatible with the Purion 200, LED remote, KIOX 300 and KIOX 500. you can retrofit or change between these configurations. All mounting parts (excluding the display and interface) are in the scope of delivery.

To which bike classification does the THRON² apply?

The THRON² applies to condition 3. Type of bicycle: Cross-Country (XC) & Trail bikes.

What can be charged using the USB-C port on the top tube?

Almost all smartphones and other devices can be charged with the USB-C port. The port has an output of 10.5 W.

Can I navigate using the display of the THRON²?

You can navigate with the THRON² 6.9 ABS and the THRON² 6.8 ABS directly via the built-in display and the Bosch Flow app. If you also want to have the full navigation features on the THRON² 6.7, you can retrofit a navigation-capable display from the Bosch smart system.