Intro: Ninebot G30 Max front wheel repair
Hi everyone, in this tutorial we will show you how to change the tubeless tyre on the front wheel of a Ninebot Max G30.
The goal here is not to show you that it’s an easy repair.
But rather to show you that it’s feasible using the right technique and tools.
🛒 Tubeless Tire for Ninebot G30 with Preventive Gel
🛒 The perfect valve extension to inflate your tyres easily
🛒 Hercules Tyre Levers
We tried several different methods before doing this tutorial and this is the one we think is the easiest.
Removing the front fork covers
Alright, let’s start by removing the yellow stickers.
To do this you can slide the tip of a cutter under the sticker, to lift the first part and remove it. If you have a hairdryer, you can heat them up, the glue will stick less and it will be easier to remove. Next, remove the two small rubber covers to access the screws of the mudguard. For this, you can use any sharp object like the tip of a knife or a cutter. Remove the 3 screws with a 3mm Allen key. Repeat the same procedure on the other side of the scooter. Now you can pull the two plastic covers of the front fork to unclip them and remove them.
Releasing the brake
In order to remove the front wheel, the brake must be released.
So remove the cap nut at the end of the brake rod with an 8mm spanner. Then unlock the two top nuts with a 14mm and an 8mm spanner.
Then hold the brake cable with a clamp so that it does not spin on itself and remove the locknut with an 8 mm spanner. And now you can lift the brake lever and remove the adjusting nut by hand.
Next, we unscrew the top nut with an 11mm spanner.
Lift the brake cable upwards and you can now remove the spring, the nut and the pin.
Removing the front wheel
Finally, the front wheel can be released by unscrewing the two nuts with a 15mm spanner or socket. Pick up the small washer that is placed on the left side between the wheel and the fork. And remove the removable part of the drum brake. Next, you remove the valve cap and check that there is no air in the tyre.
You can also simply remove the valve cap, that’s also a good option.
Removing the tyre from the rim
Let’s move on to the key step of this repair, which is to peel the tyre off the rim.
For this, I’m going to use a corner of the table and two good clamps. Personally, without using clamps, I find it to be a real pain. But by using this technique, it becomes very easy and does not require any force or effort.
To avoid scratching the front wheel, place a cloth on the corner of the table. Then place the rear wheel of the G30 Max on the corner of the table. Tighten the edges of the tyre with both clamps until the tyre bead comes out. We’ve managed to get the first side unstuck.
To get the second side out, just turn the wheel over and repeat the same procedure.
Removing old tyre
Now that the tyre is unstuck, we can take it out of the rim. To achieve this without forcing, press on the sides of the tyre and fit one part into the rim. Then hold the part of the tyre that is in the rim by tightening it with a cable tie.
Lubricate the tyre so that it does not stick. Using nothing more than soap and a little water.
Tighten the tyre a little more in the rim. Now you can see that by having tucked part of the tyre inside the wheel, the opposite part is already almost out of the rim. Now take our famous Hercules Tyre Levers, put some soap on the edges and go around the tyre to get the first sidewall out.
Once half of the tyre is off the wheel, remove the cable tie so that the rest can be removed. To remove the second part of the tyre, simply remove it by hand.
Mounting the new tyre
Then we move on to fitting the new tyre.
To avoid mounting everything upside down, first check the direction of rotation of the wheel and the tyre. And the direction of rotation is indicated on the side of the tyre.
Add a few drops of liquid soap around the tyre and rim.
Insert the first part of the rim into the tyre. Then carefully go around with the tyre lever to get the first sidewall in. Then place a cable tie loosely around the wheel. Put both sides of the tyre into the wheel. Only then do you tighten the cable tie so that the tyre stays in the rim. Then continue to install the tyre on the wheel using the cable ties and tyre levers. The trick is to get the tyre into the hollow of the rim. And to move slowly, without forcing it and without wanting to mount a whole rim at once. Now that the tyre is mounted on the front wheel, you can remove the cable ties. And press on the edges to centre the tyre as much as possible in the middle of the wheel.
Pumping and pressuring the Ninebot G30 Max tyre
Let’s move on to the next step: inflating the front wheel of our Ninebot G30 Max.
Since it’s a tubeless tyre, you have to pump a lot of air in all at once, so that the air can push the edges of the tyre against the rim, causing the tyre’s beads to “snap” into place. In technical jargon, we say that the tyre should “snap” because when the tyre is correctly positioned you can usually hear it snap. The recommended maximum pressure is 3.8 bar, which is equivalent to 55 PSI.
Remounting the front wheel
Then you can put the drum brake and the little washer back on the front wheel.
And install the whole thing on the fork.
Remounting and setting the brake system
Next, we’re going to reassemble the brake system.
So first slide the nut and then the spring onto the brake cable. Then pull the brake cable upwards. Install the pin on the lever. And pass the cable through the hole in the axle. Next, push the brake cable down and tighten the top nut with an 11mm spanner.
Then install the adjusting nut. After that, screw the locknut and the small cap nut back onto the brake cable. Adjusting the brake is quite simple.
You tighten the adjusting nut until you hear the pads rubbing. When you hear the rubbing noise, loosen the nut slightly and fix its position with the locknut.
Finishes touches: changing front tyre Ninebot G30 Max
Then we replace the plastic covers of the front fork. All that remains is to reinstall the screws. Stick back the stickers and finally, put the rubber covers back on.