The daft and dangerous system for hanging bikes up by the back wheel on these trains could easily have people forced to lift a bike (12-19Kg) entirely off the floor with the weight and means of lifting, often on a moving train, and not in line with the hook, outside the envelope set by the HSC Manual Handling Regulations - any injury might well trigger action linked to Section 3 HSAWA 1974 concerning the duty of care towards non-employees.
With the handlebars then on bikes which can swing around freely (a detail enhanced by the poor design) at knee level, we also have the greater potential for bashing legs, and laddering tights.
The problem is worsened by the poor design of a single bolt fixing with no 'second point of location' (a second bolt, a dowel pin, or a registration face), and the hooks keep coming loose as these clips show.
https://www.flickr.com/photos/h52/36670736885/in/datetaken/
https://www.flickr.com/photos/h52/36501187142/in/datetaken/
https://www.flickr.com/photos/h52/35835679514/in/datetaken/
Those using the Shotts, East Kilbride, Stranraer, and Dumfries services might want to check the trains thay catch to see the extent of loose hooks around the fleet.
Note that the hooks fitted to Cross Country and Virgin Class 220/221 trains are equally useless aned I worry that the illustrations of the Scotrail HST have exactly the same kit fitted in equally inaccessible cupboards where bikes have to be lifted with 'straight' arms, which requires strong arms and a decent body mass to counterbalance the weight of the bike - I cannot lift a 19Kg Glasgow Hire bike on to the hook in a Voyager and I weigh in at just over 100Kg, am 2 metres tall and am fairly fit - imagine a more typical 1.7m adult weighing 60-80 Kg and you might get the picture.
As many used to moving bikes around in shops and confined spaces, it is easy to flip a bike vertical on its back wheel by pulling back & up on the handlbars whilst nudging the back wheel away from you, and then wheeling the bike around on its back wheel. Try doing the same with the front wheel!
Even for vertical hanging on a hook it is not necessary to actually lift a bike off the floor, and a properly designed bike storage arrangement with vertical bikes can be delivered with the weight of the bike keeping it secure and firmly in place, with front wheel on a hook and rear wheel located in a vestigal ramp that guides the bike up on to the hook, and then allows it to roll back a short distance.
A clever trick with the hook and side plates in a design used since the late 1980s uses the weight of the bike in any position from vertical to almost both wheels on the floor to secure a bike without the need for straps or clips. if only more train builders would use them.