Haibike hardseven 5 model year 2021 my left hand crank is wobbling and worn I've seen it has half round splines any idea were I can get one

[Stevegee]

My left hand crank is wobbling and worn I've seen it has half round splines on it but most replacement cranks ive seen have squared off splines ( flat topped ) also larger securing screws my particular model has a screw that goes into the crank stem any idea were I can get one
Many thanks

 

[Anders]

My left hand crank is wobbling and worn I've seen it has half round splines on it but most replacement cranks ive seen have squared off splines ( flat topped ) also larger securing screws my particular model has a screw that goes into the crank stem any idea were I can get one
Many thanks

It might help if you told us what kind of motor you have.

 

[Sander23]

My left hand crank is wobbling and worn I've seen it has half round splines on it but most replacement cranks ive seen have squared off splines ( flat topped ) also larger securing screws my particular model has a screw that goes into the crank stem any idea were I can get one
Many thanks

Your bike has a bosch gen 4.

So any bosch isis crank will work I think