Thanks for those Brucey. The one with the fabricated truss carries the load a bit high compared to trad design, thus raising the COG, which somewhat defeats the object. Interesting though.
I like the detail that you point out re the bracing where the steerer tube passes through the main spar - a good point.
Ian
Building a Cargo Bike
Re: Building a Cargo Bike
http://grindinggears.co.uk/how-to-build-a-cargo-bike/
quite funny; the bike itself is far from perfect but it shows what can be done on a budget.
'Cargo bike collective' described here
http://velo-city2013.com/?p=2906
maybe this is what is needed in many towns and cities? Most people only need a cargo bike a fraction of the time.
This is an interesting idea
https://argobikes.com/
but the load capacity is limited and there may be fundamental problems such as
a) how the thing attaches at the BB (where all the twisting loads are borne); you need to be able to fit a ~2mm bracket each side and many current BBs won't allow that
b) there may be a basic problem with the steering if the head angles don't coincide accurately or the fork offset isn't set properly
The cable splitter for the front brake is pointless BTW; if you have flat bars you may as well disconnect the cable at the lever in most cases.
So it is expensive for what it is, and as a DIY proposition has limited appeal; more complexity for little gain. If the conversion folded to a small size it might have more attraction to folk with limited storage space. If considering a DIY version you would weld beefy brackets to the BB shell so that the loads were better accommodated.
cheers
quite funny; the bike itself is far from perfect but it shows what can be done on a budget.
'Cargo bike collective' described here
http://velo-city2013.com/?p=2906
maybe this is what is needed in many towns and cities? Most people only need a cargo bike a fraction of the time.
This is an interesting idea
https://argobikes.com/
but the load capacity is limited and there may be fundamental problems such as
a) how the thing attaches at the BB (where all the twisting loads are borne); you need to be able to fit a ~2mm bracket each side and many current BBs won't allow that
b) there may be a basic problem with the steering if the head angles don't coincide accurately or the fork offset isn't set properly
The cable splitter for the front brake is pointless BTW; if you have flat bars you may as well disconnect the cable at the lever in most cases.
So it is expensive for what it is, and as a DIY proposition has limited appeal; more complexity for little gain. If the conversion folded to a small size it might have more attraction to folk with limited storage space. If considering a DIY version you would weld beefy brackets to the BB shell so that the loads were better accommodated.
cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Re: Building a Cargo Bike
All food for thought. Thanks.