So after some small issues with the clipping in and out of the tuned pedals i built detailed in this thread, i took a revised look at my design and did a whole new concept.
I took the old bow ties and flipped them (inverted them) the theory behind this was because on the mills i have access to, 1) they arent electronically controlled, only manual. and 2) the curve of the bow ties is god damn impossible to perfect. AANNDD because i think i have micro OCD that wont do... plus to make one of the parts took me 2 hours. Screw that.
So i decided to use the old bow ties to make the cleat interface. this way the curve to the bowtie is identical and the cleat can engage un interupted. In the following photos i have detailled the proccess...
For a start i used a grinding wheel to cut out the section where the sticky outy bit in the cleat will engage and disengage from. I have shown in blue where the cut out will be.
Now the cut out vs standard version
Next the old bowtie is cut in half, so it can sit under the Ti bowties that is in the normal position. Also so it can sit in the slot that the Ti bowties sit recessed into. This is mainly cosmetical buit also functional as the now cut bowtie cannot twist out of position when the cleat is disengaged (which was a version 1 prototype failure)
This picture shows you where the cut bowtie sits on the old one, and how slotting the end for the cleat sticky outy bit will sit in there.
Next a small carbon spacer is cut (4.5mm) to seperate the two sides of the pedals, at the same time the existing threads in the cut bowties are removed if you want to, (i didnt) Note, this carbon tube is to big (diametre) but its the smallest i had in the bike spares shelf. I will fix this later in the week.
And finally we rebuild the pedal, its a bit fiddly but not to hard, tighten the torx bolts and mount them back up. Here is a picture of the pedal fitted to my Old Single Speed (sorry about the mud
) and my old road shoes engaged into the pedal.
Early riding (down the street and back) has seen a massive improvement in engagement and disengagement, it feels snappier and more like the orignals. i plan a decent proper ride this week but with work (It was easier to train when i was at school) its proving un likely. Test review to come. Ill also weigh them too, hopefully <110 grams a pair!
Anyone got some questions or comments or design improvements for me? Im always open to being helped!