I now have three electric bikes, my original rear hub 2011 cadence Oxygen Emate with unrestricted throttle, very useful, that I bought on a ride to work scheme for £1395 in 2011, a Yamaha entry level Haibike hard tail £1,750 that I bought with money from a personal injury claim after being knocked off my Oxygen Emate in 2015, and a second Oxygen Emate that I bought through pedelec clasified for £100 in 2018 initially for spar parts but it turned out to be in very good nick with 500 miles from new so became an additional bike in the stable, and even the original battery works well enough to get a heavy me and two full panniers 10 miles to work with the motor working hard to average 19.6 miles an hour.
Having a second bike ready to go is very useful when you want to commute to work by bike all the time as it allows you to keep riding to work if a minor mechanical prevents you using a bike half way through some consecutive days at work.
The Haibike after a long period of very good reliability has let me down with a few minor mechanical issues recently that would have meant using the car or trying to fix it between shifts if another bike was not available. The Haibike gets used in a harsher environment off road than the Oxygen bikes.
So as a shift worker 10 miles from work by road I now use the £100 Oxygen for any shift that is too early in the morning to use my Haibike on my preferred cross country route, travelling on the road there and back, 20 miles round trip.
The Haibike gets used whenever I have time to take the longer (12 miles) and more time consuming but much funner off road route to work and then 10 miles back on the road.
I notice as I approach 60 that I am much more tired when I use the torque sensor Haibike, but this may be because I purposely only use eco on the ride to work and quite a lot of the route, maybe as much as a third with no assist.
However if I ride the cadence sensor bikes to 4 shifts in a row, eighty miles, I know I have done a good bit of exercise. I always add a good deal of effort to the pedals. The cadence bikes are very relaxing to commute on the road when it is early in the morning and you are still waking up.
Crank drive bikes wear out their transmissions far quicker than rear hub bikes so using a combination of the two seems to work very well for me. Hub drive on the road and crank drive off road.
I was paid just over £5,000 for my personal injury claim from the insurance company of the Audi driver who knocked me off, and the total cost of my three bikes and two replacement batteries for my original Oxygen comes to £3,870.
So that allows £1,130 for consumables for the 9 years I have been riding them. The Haibike is easily much more expensive to keep in good fettle than the rear hub bikes. Probably an average of a new transmission every 1,500, miles, brake pads, more expensive tyres, and two new rear wheels to date.
So I might just be reaching the point where their use is no longer free after about 27,000 miles shared between them.