Have the above mentioned with 16ah battery. Still works ok but the battery is starting to show it's age. So I am looking at alternatives. First is a change of bike and been considering a step through as not quite as agile these days. However I am finding with more regular use it's not such a problem. Got to thinking I have a good bike why not update and customise it. I would like to make it lighter and add a more powerful motor. Any advice on a motor and drive system. I am happy with hub motor but wonder about torque sensors etc. Not really bothered about going over legal speed, but would like it to be more compatible with unpowered riding. Thinking maybe get battery recelled, or would I benefit from a new battery in different position. I am probably overcomplicating this but want to cover all angles. Oh and upgrade brakes from mechanical discs. Also the suspension forks are not particularly good ( RST Angel). Would a mono shock fork be the way to go. I don't do any serious off roading. At this stage I have not thought about changing wheels tyres or going tubeless but could be another aspect. Am thinking of a spend in the region of £600 to 800 . Sorry if this is a bit long and rambling . Any advice very welcome. I am sure someone will tell me if this is not viable