Im tryiing to convert my old nishiki royale into an electric bike. Its a road bike and has 700c wheels. I can only find kits for 26" and 28" wheels. But none for 27". Most of the kits i see are on mountain bikes or foldale bikes. Has anyone done a road bike conversion? Im looking for a kit at about 400$. And able to do 25 miles on the batteries for commuting.