Built in 1994, this frame has a foam core and wet laminate layup. It was completed the night before my club time trial, which I then went on to win in spite of not having had a chance to familiarise myself completely with the new frame. This frame was definitely a one-off.
Details to note are the lack of a bottle cage due to the narrow time trial focus, high bottom bracket for cornering pedal clearance, and chain keeper for the single chainring (installed after that first race when I dropped the chain and had to stop and remount it).
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Built in 1996, this frame is still my favourite. It is the first of my female moulded autoclaved prepreg frames, the method I use just about exclusively now. The cantilevered top tube provides a small amount of suspension to smooth out the ride. In spite of the large sections and cantilevered members, this frame weighed only 1800g. Three examples were built.
Details to note are the second bottle cage behind the seat, the top mounted rear brake and standard components all round – which can be a challenge on a frame of this type.
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The second of two BMX bikes built for my nephews in 1998 and 2001. The first was a single speed with coaster brake (later converted to 7 speed), and the second was built up with freestyle components. These were also the first ones I designed completely using AutoCAD. The design is similar to a road bike I penned in the early 90’s (before the Hotta was released) and was completely built in autoclaved prepreg.
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Having not raced competitively for a number of years, I was in no rush to build a new road bike to replace the beam bike. In 2004 however I dove in and built this frame with an integrated seatpost and seat. It was with trepidation I first got on this bike when it was built. During the first ride I hardly noticed the seat position – the best indication I could have that I got it right. The front triangle is moulded in one piece from autoclaved prepreg and the rear end is made from wet laminated and prepreg components. The bare frame weighs 1540g (including seat of course) though I plan to build a new one from the same mould with a completely new rear end in 2007 and a weight target of 1300g.
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This frame was a long-term project spanning 2004-2006, but was conceived just before 2000. Never scared of pushing the boundaries, on this bike I pushed just about all of the UCI design rules at the same time! I also used it as an opportunity to try a different construction method – joining pre-made tubes with wet taping (a method for making custom geometries). It is a UCI legal time trial bike that has yet to be used in anger. I hope to change that soon.
Features.
24” (600) wheels front and rear. (Minimum legal commercial size).
60/58t front chainrings.
Near maximum front centre dimension.
Near minimum seat setback.
Near minimum seat length.
Near maximum top tube slope.
Near maximum aero bar extension.
Aero sections close to aspect and dimensional limit.
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2006. This is the prototype for my first commercial frame. This is my most complex moulding to date, with the majority of the front triangle and the whole of the rear triangle moulded in one piece. A separate moulding for the head tube and seat mast allows one standard main moulding to be the basis for several different sizes of frame. This frame is currently undergoing rigorous testing at the hands of a nationally ranked junior rider, and has been ridden to numerous national records and titles, and most recently a Junior World Championship medal. A final decision whether to proceed with a production version is pending.
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