Past Projects Posts

Child’s First Pedal Bike

Child’s First Pedal Bike

Having previously made a balance bike I now need to follow this up with a pedal bike. This has proved to be quite a challenge. Having come up with a design from the child’s existing measurements using BikeCad I needed 14 inch wheels. These are almost impossible to find as is a suitably small chain set. Eventually after much searching I decided to buy a donor bike for some of the parts. I wasn’t able to find a suitable one in a hurry on Ebay so headed to my local Argos (other retailers are available) and purchased  very heavy 14 inch bike. Like all similar bikes it has very fat tyres and weird caliper brakes that make contact on the undersurface of the rim. The chainset is basic press fit with cheap bearings and lightweight 1/8 inch chain. Surprisingly the bottom bracket was a standard adult width and the dimensions of the bottom bracket very close to a standard PF86, though not quite. Having started down this road it looks like I will have to bite the bullet and use the wheels, chainset and brakes and maybe the chainguard.

953 /Carbon Semi-Lugged Road Bike

953 /Carbon Semi-Lugged Road Bike

I have previously built a Road bike using Reynolds 953 and Llewellyn lugs with a Dedacciai carbon fibre rear triangle. This was something of an experiment as, whilst it was a standard thing to do, I was unable to find any real information about how to go about it, especially in relation to the glueing process. I have now been riding the bike I built for two and a half years and have had no issues with it other than a minor problem I will mention later. Using the experience I now have I am going to build a similar frame. This will again use 953 oversize  main tubes (35.9,31.7,31.7) with stainless Llewellyn lugs. The rear triangle  is supplied with it’s own bottom bracket so this has to be fillet brazed in. Although the rear triangle is supposed to be a  Dedacciai Firebox as before, from Ceeway, it is a slightly different shape from the previous one and is marked “Black Box and Black Tail”.

Lugged 953 Winter Road Bike

Lugged 953 Winter Road Bike

I decided I wanted to try another all stainless frame, this time in Reynolds 953 and return to a lugged design. I also plan to try and mirror polish the whole frame then perhaps decide on some additional graphics to complement it. As in the past I wanted to build with oversize (XL) tubes, partly because I already had the tube set and partly so I could again use the Llewellyn XL lugs with a sloping top tube design. There are several problems inherent in this plan which will have to be overcome. The 953 seat tube tapers to 29mm at the top from 31.75 to accommodate a 27.2 seat post. This means it will be too loose in the Seat lug. On my last similar build when I realised this I simply turned the seat tube upside down and used a shim for the seat post, but this time I shall probably fillet braze  the top tube to the seat post (In fact the whole frame will be silver soldered). Only one stainless oversize lugged bottom bracket with oval chain stay ports for greater tyre clearance is available from Ceeway and the 953 chain stays are a poor fit as they have a pointed profile at the bottom bracket end, so I will have to use XCR chain stays which should be a better fit. Also an XCR head tube as the 953 head tube is too wide to fit the head lugs and also too short for my selected head tube length.

Columbus XCR Audax Frame

Columbus XCR Audax Frame

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.

Child’s Balance Bike

Child’s Balance Bike

 

Customised frame parts courtesy of The Bicycle Academy. Wheels and saddle Strider Bikes

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Forks for 12in wheels. Only way I could think to do these forks was to make them to match a full size drawing

953 Road Bike with Carbon Fibre Rear Triangle

953 Road Bike with Carbon Fibre Rear Triangle

Compact Road Bike: Reynolds 953 oversize main tubes. Columbus XCR head tube. Llewellyn XL compact stainless lugs. Dedacciai firebox carbon fibre rear triangle with matching steel bottom bracket, alloy dropouts. All parts apart from the Reynolds 953 from Ceeway, Paint job Atlantic Boulevard.
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Medium Weight Rohloff Tourer

Medium Weight Rohloff Tourer

Fillet brazed Reynolds 853. Columbus seat stays,Reynolds R fork blades. I admit I was inspired by the Thorn Mercury.IMG_0974

 

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20 inch wheel Frame for Loopwheels (Sturmey Archer 3 speed)

20 inch wheel Frame for Loopwheels (Sturmey Archer 3 speed)

Columbus Zona frame and forks. My first fillet brazed frame. Custom mudguards

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26 inch Lugged Shopping Bike Frame with Custom Rear Rack

26 inch Lugged Shopping Bike Frame with Custom Rear Rack

Tubing Columbus Zona, Forks Reynolds R. Rack 10mm chromo plain gauge

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Lugged Winter Road Frame

Lugged Winter Road Frame

Tubing Reynolds 853, Columbus/Dedacciai rear triangle.

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