Rockrider E-ST 900 Speed Unlock

Hello there!
In this video I want to show you how to increase the max speed of your Rockrider E-ST 900! The hack is the same on the E-ST 520.
You can try on other brands, if the components are the same as this bike.

Remember than you cannot use your bike on public roads and area after this kind of modification.
Use them only in private areas!
I'll not be responsable of unproper use of this modification

[tamasmagyar]

Test Rockrider E-ST 500 from 2023
Thank you for your modification I tried. So you can do 450-500 pedals cycle and then the motor goes off without say anything. You have to turn off the computer and then back on. But I did 7km and the engine went off 2 times. The max speed on the flat road 41km/h but the engine still going so you can go faster. But your battery life on mode 1 took 10% in 7km.
Normally I can do 100km range on mode 1, also 65km in mode 2, and 50km in mode 3 on a flat road with AVG speed 22km/h without the hack. So what this video explain is good but your engine going off when you ride more than 3km range.
I hope you guys this review helpful and you can go realy fast in mode 1 with this modification but you know the result. So I do it back for factory result because I am happy with the 100km of range. Peace and love. 😊

[wackitywack]

Thanks to Pasquale! It worked for me. Now I can go 33% faster. My magnet is 15mm x 1mm (North). I used 4x cable ties and some double-sided tape as well. I was a little concerned that the magnet and the sensor were not exactly lining up, but I got them as close as I could. And hey, it works. I'm carrying spare magnets around with me in case something knocks my magnet off. So happy!

[glennshrieves]

I just did this today and it worked a treat, perfect mate thanks

[ataksnajpera]

Very elegant hack! Much better than buying overpriced speedbox and then cutting wires! Thank you! I'm going to use this hack in 520.

[TIXIL]

thanks tested with E-ST 500 works perfectly

[giuliasantucci]

Thanks for the video . I have done it on my new est 900 and it works! In eco mode goes easy to 35km/h , in Standard to 40 km/h . The problem is that with new latest est 990 model, with new Brose lcd control screen , happens that after about 500 pedal turns the power assistance off. Is like the system knows that the speed sensor has been moved . To have the power back I need to off the control screen and on it again. It seems that only the new 900 est model have this problem

[emericperez]

I have already done the same for my Rockrider e ST 900 it works very well, however be careful not to have an accident because they watch a lot, I have unbridled my bike for a few months but I strongly advise you not to unbridle the engine if you live in a city the chances of hitting someone are greater, the brakes are of good quality that's not the question but it will take you longer to stop.
We can go up to 40 km / h on the flat, beyond it is possible but it will be very hard with a motor of about 350W!
At 35km / h on plato doesn't force it too much.
The maximum assistance speed is 75km / h.
(34/11 = 3) 25 x 3 = 75km / h
Above 45 there is hardly any assistance. We pedal too fast for the engine.
The autonomy is 30 km do not hope to do much more especially if you put in mode 3.

[irfanhendrawan]

The speed in GPS showed 47km/h but in speedometer was 15 km per hour, so the motor still gave power until it reached 25 km per hour in speedometer.

[bradmaxwell]

i bought some of the magnets but they are not with adhesive pads, which way around does the magnet need to be should it attract or repel from sensor?

[Xapiro]

Bonita, o mercado brazuca está começando a melhorar... Pena que não fizeram XL.

[officekundig]

I did what you showed on the video and it is working fine. Speed increases till 42km/h. However the motor stops after a while and i need to reset the system. How can i avoid / solve this issue? Kind regards, jan

[thekerryman]

and now to find out how to do it on the new 2023 Rockrider E-EXPL range 😊

[JobjeGames]

Is there a chance that a new rockrider e st900 detects the speedhack? I have seen some people say that it shuts itself off.

[poldecrossmol]

Does this trick affect the lifespan of the battery? Thanks for the help

[sandrosella]

Avrei una domanda!!! Hai solo tolto il sensore perché non lo veda il ferro sui raggi della ruota, o anche altro??? Grazie👏

[reelBorsti]

Great Video...Thank you :-)
It works well

[INSIGHTSAU]

Great video. Thank you, worked perfectly. I know the speed and distance won’t work after the modification but will the battery remaining and distance remaining still be reliable?

[abdihashi]

hey can you do one for the rockride est 100 please theres no unplug wire on the back wheel

[chrisnumnuts]

when i increased the max speed i just messed with the programing and got around 25 miles a hour. but burnt the motor out on 1 bike .and the mid drive motor i broke are someone broke my crank arm on the motor that was connected to the entire motor no way of fixing :( waiting for the battery technology to get better then maybe a new ebike for me .like this 1 in the video

[iamcRuNcHiE]

On my new e-st900 I can’t get the sensor screw undone! Wondering if they have glued it in.
Not reverse thread is it?