Thanks! I'm also looking forward to see your frame project finished
I trust my work and it's also one of the best parts to test the frame by yourself! I already compared the stiffness of the chainstays/seatstays by "squeezing the dropouts" together, and it is even stiffer than PROTO-TYPE 2, even without the brake-bridge! This time I made the chainstays a bit wider and also the BB is for press-fit bearings (the BB is wider) and that sure provides some better results.
I already wanted to test the frame, but it was just to expensive for me.. I would love to test it. If you could really do it after 2 years, then you could maybe test this frame
that would be really great. It would be also my dream job to have my own small company some day,..I already made a few custom products and it would be great if I could make more products. I also already have access to autoclave and the things are getting very interesting,..slowly the progress is better and better...
A couple of questions. Is it the same no. of layers at the joints as the previous frame? What are the main alterations have you gone through to loose approximately 200g?
No, this time it is even stronger
. The nuber of layers is not the same, but this time I used also 250g/m2 carbon, for PROTO-TYPE 2
I made a bit more layers, but also only with 130g/m2 carbon etc.,..if you would calculate how much carbon was used at the end, you would see that it would be around 2 layers of 200g/m2 carbon less. Hopefully you know what I mean..
I changed all the ALU parts for carbon parts. The bottom bracket is for press-fit bearings and also the dropouts are 100% carbon fibre. Only this is more than 120g less. And after more than 3000km with PROTO-TYPE 2
, I saw what I can do different, more improved,.. First I changed the tubes for some round one. The toptube is now a "ellipse" and it is around 20g lighter than the "trapezium" toptube from P-T2, but still very stiff (you cant squeeze it like on some lighter frames like Addict etc.,.). Also the downtube is a bit lighter because the shape, and it is a bit stiffer. I used only top-quality carbon fibre for the carbon tubing and also some improved methods.. You can see this even on the surface of the rough tubes. Also the chainstays are lighter, most of the tubes are lighter also because their shape.. The chainstays probably aren't lighter, but are a bit wider and of course stiffer... I expect that this frame will be even a bit stiffer that the first one and a bit more comfortable. If I would cut the ISP the frame would be around 70g lighter (the frame would be only around 860g) with integrated cable routing etc.,.. There are a lot of details and I give attention to any detail to make "the ultimate" frame. For the reinfocements I worked more than 4 hours only to prepare all the pieces of carbon, each piece is on his place with a reason and task.. And I made it 300g lighter than the P-T2
I trust my work because there were a lot hours of work on the paper and quite a lot of testing with my P-T2 frame. I noted any noticing in a notebook (more than 30 sites!), and after +3000km I already knew how to make a better, lighter frame..and here I am, pushing the limits of my skills, and this frame for sure won't be the last one! Aftir this frame I will sure try to make a new, lighter, better frame,...will see...and some day I also have to make a TT frame, I already have some ideas on paper,... Will see, I'll keep you updated after I come back home (after 20 June), just can't wait to do some more work! Thanks for your attention
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