Sunday, October 11, 2009

Lowracer concept - first appearance

'Sister-project' I would say, but to be able to make decisions, I need a good platform to test particulary driving position, which is the most critical and also unknown, how else you could ride hours unless you feel comfortable. However, these bikes are not ment to replace your livingroom sofa, but if you make a critical error in your positioning, you may not be able to pedal properly or get a good breathing. Also to driveability and manoeuvrability is very important to test, and does it have some bad habits. The design is different when it's a lowracer and not a streamliner, but at least you can have a hint of the future what's head of us. That is the meaning of the lowracer concept.

There is one thing that might look odd, it's mainly because the construction is different what it would be in a monococue streamliner, but the ground clearance is very low mainly because of the main tubing under the seat. The seating height represents the height what it would be in a monococue construction, you literally 'sit on the bottom', so that is where you need to sit in this lowracer.
Steering is something you can't deside before you have something you can fit yourself in, so that will be a matter of experimenting and it is left out at this point. Three different ways are possible, downbar, upbar or sidebar. Sidebar and 'side-steering' sounds complicated and strange.., but I feel I will give it a try :)

The height of the construction is very important, if you want to make it look like a typical lowracer, it would be much "flatter" , driver laying more in his back than sitting upwards, but streamliner is a vehicle of compromises. More upwards it means shorter lenght, better view, bigger overall height. Laying down means longer bike, low view, perhaps heavier bike. As we know now, pedal-box is the critical and most guiding issue in a liner where everything must fit inside the fairing and still make a good aerodynamics. So if you have a big pedal box like I have (big feet, long cranks), it's pointless to make a long vehicle because it also needs to be quite high. So before you think that more lower the better, maybe, but not in all cases.

Here we have a sketch of the lowracer design.

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