I don't have this but I do have the earlier version, ie E-Mate with a similar spec and the 15Ah battery. I reviewed it on the Oxygen website although the bike is now no longer listed.
" I ordered this bike as an upgrade from my 20” wheeled folding bike which I’d happily zipped around on but felt a larger wheeled bike with a greater battery capacity would be more suited to my cycle touring and, having looked at many models, chose the Oxygen due to its potential 70-mile range, its size – not many step-through bikes can cater for my 34” inside leg, its chunky tyres, front and rear disc brakes (upgrade), suspension forks for our bumpy lanes and its overall design. When it arrived, I was not disappointed.
Delivery was exactly as advised and it arrived in perfect condition, despite the courier company clearly standing the packing box in water rendering it a soggy mess. Luckily the original manufacturer’s box was inside the retailer's additional box providing double protection. The bike arrived ready set-up, with even the computer set and, once the pedals were screwed in and the handlebars straightened, I spent a few minutes adjusting the saddle and handlebar heights, oiling moving parts and then it was ready to go.
Build quality is good with branded components used and it looks like a quality bike. It is very smooth to ride, the twist-grip engages all gears accurately with no grinding and the 5 pedal assist power levels cater for all riding styles: levels 1 and 2 would be ideal for rough canal towpaths with no danger of the bike zooming into a canal, 3 is the default for flattish roads while levels 4 and 5 are needed for inclines and hills and can be supplemented by a boost from the throttle. The saddle is a bit on the hard side but soon remedied via the use of a gel cover.
The range appears to live up to its stated specification of up to 70 miles with pedal assist. I’ve taken it on a 45 mile hilly ride with 20% gradients and on returning home, 3 of the 6 bars on the battery power display remain even following this quite challenging ride.
Although this is a pre-2016 model bike, ie prior to the 2016 change in legislation, I had expected the throttle to work independently of the pedal assist but – no, it doesn’t. The pedal assist must be engaged and activated via pedalling then the throttle provides an additional boost, unless the motor is already working at capacity.
There is nothing I dislike about this bike and it is one I would highly recommend, particularly for longer rides and cycle touring."
I love the bike and would happily buy it again.