This is to be my first use of the BikeCad program and also to incorporate a bike fit into the design, making it my first truly custom frame. The program certainly revolutionises the design processes allowing you to constantly adjust the design whilst keeping an eye on the aesthetics and geometry. We wanted a full stainless steel frame with accommodation for mudguards and a lightweight pannier rack. The only stainless fork blades available are Reynolds 953, but the frame will be in XCR. The steerer tube has to be non stainless, from Columbus. Apart from the fork crown, it will also be my first fully fillet silver soldered frame.
As usual I make the forks first, managing to produce a fork rake of 43mm from the 30mm rakes blades.
Whole frame cut, mitred and assembled before any brazing, then bottle bosses and internal brake cable guide added before final frame assembly
Also decided to add chain stay gussets for added strength and a sleeved section to encompass the lower down tube/bottom bracket junction.
I had to use slotted dropouts because I couldn’t find any socket types that fitted XCR chain stays. Combining these with seat stay top eyes then putting them all together was particularly challenging. The XCR top eyes are supposed to be sized to fit but they are in fact rather loose and due to the thickness of the seat stays, rather bulky. In retrospect I would choose to do a fastback seat stay cluster with XCR seat stays.
At last all assembled apart from a few hours polishing before taking it to the painters.
All polished sections done and finally on it’s way to the painters.
The frame is now painted but I’ll be exhibiting it at this years Bespoke bike show in Bristol on 17th,18th,19th April. So I will refrain posting a picture of the completed bike until then. Hope to meet many enthusiasts and potential contributors there. You can check it out at http://www.bespoked.cc