"Awesome, makes me want to try use a straight razor. Although what would stop the lever accidentally opening as someone shaves (due to improper technique or whilst shaving a tight contour and catching the corner of the unit rather than the blade)? "
"Hi David thank you for your continued feedback. Perhaps this will work for some people such as yourself and that is great. However, cycling shoes (as I am sure you know) have a stiff sole plate that makes them very difficult and uncomfortable to walk in. Not to mention that they will be covered in mud and debris in the winter/autumn months which might not look the most professional (dependant on work-place), and the cleaner won't be thanking you either.In addition, for commuting to other places than work this would obviously not be viable.1"
"Hi Mik, thank you for your feedback. The target market would be the UK - so relatively cold (and wet). The need for good water protection and some abrasion protection drove the material choice. I did explain some more of the detailed features of the overshoe when I submitted however, they didn't make it into the final post. Your concerns about the heel lifting would be an issue if there was not a small heel cup within the upper material attached to the sole. With the angle of the large PU strap pulling the most effective portion of the foot into the heel cup the inner shoe will not be able to move - even on an upstroke [please see bottom left drawing -up one] "
"Hi David thanks for your feedback. I am aware that the 'power transfer theory' is still in hot debate within cycling communities. However what I think we can say is that there are certainly benefits, with most people who start using clipless pedals continuing to do so. Whether that is; the ability to generate torque from different portions of the pedal stroke, reducing foot flexion because of the stiff sole, allowing for a more consistent and energy efficient pedal stroke or the reduced concentration and energy keeping your feet in position - is yet to be quantified.In addition, I will say "power transmission" (at least for this consumer type) will be more about reducing inefficiencies and reducing fatigue than it will be about increasing speed or "racing".And regards to "Strava-addicted roadies" adjusting their "seat post 15mm" - cycling fit can be very important ;)1"
"Hi, thanks for your comments. I did address these point in the 'detailed explanation' when I submitted, but for whatever reason hasn't made it to this post.The base of the overshoe would be 15mm deep, and the upper material 1.5mm thick laminated neoprene (which due to its slight stretch hugs the inner shoe) ensuring its compacted size is as minimal as possible whilst still maintaining the performance of a clip-in shoe (The physical prototype visible is not representative of the final product spec). The pouch is not required for its portability, it was implemented in-case the overshoes were covered in mud and moisture after a journey. In regards to other pedal options that you rightly pointed out - I found during my research that :-Toe cages are efficient however they can be very dangerous with users often tightening the straps to increase pedalling efficiency which can make them notoriously difficult to get out of at traffic lights or in an emergency (also from experience aha)- Casual SPD shoes (with the recessed clips) are often overly expensive, unsuitable for work environments, limited in style /brands and are prone to dismantling due to the weakness of the SPD attachment to the walkable rubber sole. "
"I think context is crucial here. Where are they situated, who is using them and in what spaces - this alone could void or justify these designs. I think there is also is something to be said about designers often been so focused to conceive something that 'does' something, that they miss the 'why'. Not saying either of these designs fall victim to this just a possibility. "