Such a stunning build, I'm in awe.
Just to be clear here my comment on motor was not meant as a criticism on Tenchs stunnIng bike - the only reason I mentioned it was related to the power you can actually get away with when driving through a normal derailleur setup, I have the hs myself which I think is 16lb? I was only wondering how small/light you could go with a hub bearing in mInd the standard drivetrain will only take a certain amount of power.
Having toyed with the idea of a cyclone quite a few times and always canned it due to the noise my mInd is running riot as to how light and quiet a hub mid could be.
To emphasise how impressed I am with Tenchs bike I'd be first to say - Simon, how much for a frame?
Stunning build, cannot wait to see the vid f5 f5 f5
D, building a frame is not as straight forward as it might seem, every aspect of the bike has an influence on the frame, to do a good job the bike has to be designed as a whole, the choice of motor, controller, batteries, cable routing, cable securing, wiring routing, sufficient space for the the wiring all these things have to be taken into consideration and integrated into the design, basically the whole bike has to be designed down to the last detail before any of it can be built, that is if you want to build things the way i like to. i have about 3mm clearance between my pedal cranks and the motor mounts on either side so even the motor spindle could not be designed untill i had chosen my pedal cranks and BB, those details dictated the motor offset which dictated the design of the front sprocket carrier and the chain run. Finding the right cranks to cut the spiders out of to allow me to fit it all between the pedal cranks whilst keeping it looking central and getting the chain where i wanted it. on this build everything just fits. To build a frame would involve designing a whole bike and making many more components than just a frame. I started this one by cutting some cardboard templates of the motor, batteries and controller, then i taped them to the bike frame, i spent a couple of evenings moving them around thinking of all the possible implications associated with that layout untill i found the layout that i have now, then i stuck them in place and sat with a note pad and a couple of rulers, i try to think of every single small detail and how i will do it, when every single problem has been solved and i know exactly how i am going to do it down to the last tiny detail i will set about it with the hack saw and get stuck in.
Some details that might not have been noticed, one leg of the motor mount spiders is inline with the incline of the battery compartment, another leg is inline with the centres of the pedal cranks and motor spindle, they dont just look in line, they are bang on! the 2 carbon fibre side panels are identical in size and shape due to the effort i put into getting the frame right, the angle between the back and the top face of the side panels is the same angle as the weave in the carbon fibre. The bike stands on my bike stand with both wheels the same height off the floor due to the position of one of the motor side plate fixing bosses, the controller is at a slight angle to the top battery, this was to make room for the controller lower fixing screws or they would have touched the battery, and it goes on and on. I supose it is a learnt trait from many years as a vehicle builder, cutting the side out of a new Merc to design make and fit some new doors for a dissabled persons vehicle teaches you to plan a job to the end down to the last detail before you start as mistakes could be dissastrous!! But mostly, it is because i enjoy seeing the end result
The wife says i have OCD, i tell here i have CDO, its similar but worse,, i had to put the letters in alphabetical order
But really it is just because i care, i believe if your going to do something do it to the best of your ability, so there are no obvious fails that you wish you done differently, achieving the "Factory" look. There are a few things i dont like, the crank chain wheels, one is on a 5 stud pattern and the other 4, the motor mounts are on 5 stud and the brake discs are 6, it doesnt match, i can do something about the chain wheels though and probably will change them.
Now what was the question,,oh yes,,how much for a frame