Why Don't ALL E-Bikes Weigh Under 40 lbs?

I'm gonna tell you the differences in lightweight versus heavy ebikes and if going the lightweight route is better or worse? Pick up the X-LAB SP5+ here - https://xds.co/products/sp5-plus?srsltid=AfmBOooeSxpVtAtFockcdrbMJPsufyNsrHXuOx3y6PuLF7bZcmzUWDwb #xlab #ebikes #electricbike