Inside or outside motor ? ground clearence.

outside motor kit ebike

There are two support frame support designed to allow to fix the engine below the lower tube of your frame, or the internal support that allows to fix the engine inside the frame ...

Whatever happens to ground clearance is usually much better than Bosch or Yamaha and bafang engines.

As you can see in the photo below, the system offers an ideal ground clearance.

Click on the links in red to see our:

Article on the compatibility of the electric motorbike LIFT-MTB Inside or outside version.


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For the under the frame it is extremely rare that the engine kit touch the ground because usually, if it must touch it is at the sprocket (which is in principle the same height as a conventional bike).

Indeed when we get down an obstacle with the momentum we never touch as high as the positioning of the engine, It would be necessary to touch as high to get really lowspeed on a step without pulling on the handlebars ...

If by accident you touch the engine, will always be better that it is the engine support which comes to the contact to the ground  because is a block of aluminum 7075 machined in CNC of 8mm of thickness to fix on the studs iscg in the manner of a bash guard (so binding provided for this purpose).


That will be better than the down tube frame which is not more than 2mm thick  carbon or aluminium...

So in practice no chance that it moves !

inside ebike motor

Above, bash protection plate in ISCG fixing like the LIFT MTB support.

Nous avons innové un système de protège plateau / Basch Guard adaptable aux platines moteur de la version V3 à V4. 


Ci-contre un article à ce sujet. 

commencal ebike


Generaly a bike with the electric motor MTB LIFT-MTB is except special case usually always higher than some model like for exemple the commencal suprem sx 2018 on the photo at the left (non electric bike) or yeti sb 130 or sb 150.


Below in the photo that proof so motors mounted under frame, have sometimes offers more ground clearance than the models in internal mount.


So in this case ,it will be better to touch the strong aluminium 7075 main plate LIFT-MTB , than YETI superlight carbon frame !

yeti carbon sb150
yeti carbon sb150
Giant AC
Giant AC



You can try to do the cardboard test version for have a better idea of the result, or find our on galery if there is some photos of the same bike as yours.

Battery with Inside version :

battery on frame
battery on frame



With the outside version you can sometime use battery or bottel on the frame, that not Always possible with Inside version.

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e-bike kit made in france