Is everything alright with my Bonfire?

Man walks to motorcycle

Great, you have finally received your Bonfire. Now you might have tons of questions and you want to make sure that everything is alright with your Bonfire. Perfect! We are here to help you. Here are some common questions:

My MIL is always on, is there a problem with my drivetrain?

No, as long as your motorcycle is driving and working, you do not have to worry because everything is alright. In most cases our OBD-System which manages drivetrain detects something and lights on the MIL to signalise there might be a problem. However, in over 90 % of the cases, the OBD system is too sensitive and there is not really a problem. 

Legally the MIL has to be on for the next 3 rides. Only if there is no other error in the next 3 rides, the MIL is allowed to turn off. You can try this: Fold up your side stand. And turn your motorcycle on and off 3 times. Then your MIL should turn off. 

You can remember this: As long as your motorcycle is driving and working, there is no real problem in the drivetrain. The ECU is configured in a way that only with a real problem, the motorcycle stops and the ECU gives you a beep sound. The beep code tells you what problem the ECU has. You can find more information regarding the beep code in your manual

PS: Sometimes the MIL turns on when you fold down your sidestand. This shouldn't happen and will be fixed in the next software update.  

The right brake lever for the front brake of the CBS is weak, is that normal?

Yes, the front brake is not as strong as the CBS brake. Due to the EU regulations the CBS brake has to brake extremely good while the front brake only has to brake half as good as the CBS brake. That is the reason why with the CBS brake activates 2 pistons on front and 2 pistons on the rear while the front brake activates only one piston on the front. 

The left lever of the CBS brake can be pulled close to the handlebar, is that normal?

Yes, this might happen. As mentioned above the CBS brake activates in total 4 pistons that is why more brake fluid has to be pushed through the brakes. That is why the lever can be pulled closer to the handlebar. 

PS: In 2023 the brakes will be updated to make the right and left brake lever movement similar. Currently a 14 mm piston diameter is installed on the left lever and a 12.7 mm piston diameter on the right lever. In 2023 this will be changed to 15 mm on the right & 11 mm on the left. 

When I pull the CBS brakes the rear wheel blocks, is that normal?

Yes if you only pull the CBS brake, then the rear wheel will block first to due safety reasons. However, we recommend to use always both CBS & front brake together to get the best braking results. When using both brake levers, the resulting braking force distribution will optimise the braking performance and reduce the brake distance.

Are the Dual Sport Tires mounted correctly?

Yes, they are. It might seem strange that the front tires are mounted the other way round but this is how Heidenau wants the tires to be mounted. Our explanation is that the front tires need more grip while braking not while accelerating. 

The brakes are dragging, is this normal?

Yes, the Bonfire has brake calliper that are actuated only one side. That is why one side of the brake pads is always dragging at the brake disc. This sounds changes with speed and can also have a rotating noise due to the characteristics of the brake disc. You shouldn't worry because combustion motorcycles do make the same noise but it is not possible to hear it because the engine is very loud. 

The Bonfire squeaks while driving, is that normal?

Yes, that is normal. The Bonfire has two rotating parts: the front wheel and rear hub motor. Each wheel has two haft seals to protect the axle and the bearings from dirt. The shaft seals are made out of rubber and touch both the rim and the axle. Due to the rotation they make squeaking noises sometimes. 

If they make noises, you definitely know that they are working and protecting your bearings from dirt. The noise comes from the rubber touching the metal. You might clean your axle & use some oil to reduce the noise.

The Bonfire squeaks while braking, is that normal?

Yes, this can happen because we have sinter brake pads. Sinter brake pads are known to more noisy than normal brake pads. Often the brakes squeak because you did not use them for a longer time. In that case, we recommend to use the brakes a few times. Normally after a few brake procedures they should be more silent. 

If the brakes are still squeaking, you might have to clean them. We recommend getting special brake cleaner to clean the calliper and brake disc. 

My rear wheel is not mounted in the middle?

Yes, the rear wheel of the Bonfire should be mounted closer to the left side. Since the Bonfire has more weight on the left side due to the large front brake and the hub motor, the rear wheel is often mounted up to 5 mm closer to the left.

My wheels and rim are not perfectly round, is that ok to ride?

We have 2,8 mm tolerance for both sidestroke and radial run-out for spoked rims. Since rims with spokes have to be centered manually, it might happen that your rim is not perfectly round. As long as your rim is within the given tolerances, your riding behaviour won't be affected.