The same bike advertised on Amazon, says the "one size"
frame is 17". If you are 5'10" I would expect that to be a tad on the the tight side. Sports Direct didn't let you return bikes to local stores either. You can have them delivered to a local store, but returns (at your cost) have to go back to their warehouse. Avoid!?
This might have been a better choice .... If you MUST have new....
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Even comes with hydraulic brakes... Out of stock online, but might be available in a local store.
Not got 26" wheels though. Slim tyres (Marathons) will make them seem like 26" wheels....
You've already had some good advice on this project, and the couple of bits I would offer are:
You will appreciate the weight of an alloy bike with an alloy
rigid front fork, if you are hoofing the bike in an out of a car boot. The Suntour XCT fork on the front of my Kona, is a significant weight, (pushing 3kgs) and I can't wait to get rid of it. A light front end is necessary for anything other than road work IMO, because uneven ground can be a disaster if your front wheel wants to dig in. I'm another who would suggest a front hub motor on an
offroad bike would not be prudent.
Finding a used 26" MTB in a Large, and in good serviceable condition shouldn't be that difficult. You will need a Large I would think, and the bigger the triangle, the better anyway. If you are determined to get a rear hub (a solution I personally favour) then having a 'practice' project with a used bike in good nick makes sense. If it doesn't work out, or you want to invest in a more exotic bit of kit when you are happy with your first try, you losses are minimised. Could be, you get a used bike for £0 from Freecycle.
Given your apparent need for wheel removal, I'm not sure you will find a hub motor the best solution for your project. I'm not a fan of mid-drives, because they are basically, super-ugly. (Aesthetically displeasing.) But, a mid drive would seem like a better solution for someone who needs to remove wheels to get their bike in the boot of their car? If you find size, or weight, demands that you are removing a rear hub motor every time you travel with the bike in your car, I would expect you to get pretty fed up with faffing around with connectors, and possibly re-zip tying cables away from hazards on your ride.
It would seem the bike size, followed by bike weight, are your two main challenges. Nothing stopping you putting 26" wheels on a new 27.5" wheeled bike. You plan to replace the back wheel with a hub motor anyway? A 26" front wheel with disk hub will be very cheap - assuming you have to buy one. Stick with alloy frames,
possibly a rigid front fork, and your weight issue will be minimised.
Something like this?
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Sold bikes in
vaguely your area....
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