https://en-gb.facebook.com/evanscycles/videos/1824575427653190/
how is that chain line done?
cargo bike - any good?
Re: cargo bike - any good?
Not sure about the chainline,I suspect two chains.I really like the concept though 
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"All we are not stares back at what we are"
W H Auden
"All we are not stares back at what we are"
W H Auden
Re: cargo bike - any good?
there are two separate chains, and an idler shaft with two sprockets on it. Oddly enough this is probably more efficient when running in the 'cargo-bike' configuration than in the standard wheelbase configuration.
In the electrically assisted version the idler shaft is the location for the assist motor.
There seem to be two prototypes in the pictures; one with a top tube and a right side drive, and another without a top tube and a left side rear drive.
More here
https://bikerumor.com/2018/12/11/convercyle-instantly-folds-cargo-bike-in-half-into-a-rideable-compact-commuter/
in the above article one of the photos shows a bike that has been assembled by someone who has never seen one (or indeed perhaps any working bicycle) before....look at the way the chain ends are joined, where the tensioner is positioned, and what happens to the front chain when the bike is in 'normal' mode.
The second prototype (with a top tube) has an unbelievably wide BB and long BB spindle so that the front chain runs at a chainline wide enough to clear the rear hub when in 'normal' mode.
Needless to say if the rear brake is used in 'normal mode' and the fold isn't fully locked, you will find a new, faster way of converting to long-wheelbase mode.
There are also fairly obvious issues with having a rear mudguard.
cheers
In the electrically assisted version the idler shaft is the location for the assist motor.
There seem to be two prototypes in the pictures; one with a top tube and a right side drive, and another without a top tube and a left side rear drive.
More here
https://bikerumor.com/2018/12/11/convercyle-instantly-folds-cargo-bike-in-half-into-a-rideable-compact-commuter/
in the above article one of the photos shows a bike that has been assembled by someone who has never seen one (or indeed perhaps any working bicycle) before....look at the way the chain ends are joined, where the tensioner is positioned, and what happens to the front chain when the bike is in 'normal' mode.
The second prototype (with a top tube) has an unbelievably wide BB and long BB spindle so that the front chain runs at a chainline wide enough to clear the rear hub when in 'normal' mode.
Needless to say if the rear brake is used in 'normal mode' and the fold isn't fully locked, you will find a new, faster way of converting to long-wheelbase mode.
There are also fairly obvious issues with having a rear mudguard.
cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Re: cargo bike - any good?
One of the characters in the film linked-to has created a unique win double - he has made his bike weigh as much a possible while carrying his possessions in a giant rucksack on his back.