[Closed] J shaped cranks

If they were yellow and plant based.....

Does that article have a shipping date?

Would be quite cool to turn up on a club run with a set on the bike....

Looks like the company that made them has gone under, they spent a while spamming forums about 6-7 years ago, with lots of scientific data to back it up.

This is real mind you can buy them on AliExpress with a 20% power saving why don't the pros use them?

Isn't that just a dynanic crank length changer, longer at the bottom, shorter at the top?

Same idea as oval chain rings.

Hmm it's an unusual date to be launching such a strange product - don't you think?

Which one?
The PMP L shaped cranks have been around since the 80's.
The j shaped ones about 6 or 7 years (i'd have to check, but i can't be bothered).
The wobbly crank things i've seen several times, usually for people with mobility problems.

Hahhaha OK

I'd assumed it was an April Fool's joke :o)

It's a classic.
Like no-one really uses oval rings 'cos they feel weird.
Same applies to that pedal attachment, any big deviation from circular motion just feels weird when you're pedalling at 90rpm.
Works for hand cycles, though (all the power is concentrated in 30-40% of the stroke).