I don't know if this is getting too much off topic, but Chimera Engineering has 300cc conversion kit for Honda Grom.
Instead of making 125cc into 150cc, maybe save money for engine conversion?
I know Honda engine would be too expensive, but maybe one of those Lifan 229cc engine?
Also if the kit is too expensive, maybe you might be able to find somebody who can fabricate a bracket?
https://www.steadygarage.com/store/c...kit-honda-grom
