Some bad ideas like characters in a bad horror movie just refuse to die. Enter the Dpardo crank. The website is in chinese but the bad physics are universally understood. Trust me, I’m not an engineer (not even on the internet), and I can assure you these cranks will not increase your performance.
The “Sickle and Monster Disc” Cranks are only available online via Dpardo’s chinese website. Interested? They’re a steal at only 19,932
Yuan (~$200 USD) NTD (~$726 USD)! No word on weight but they’re “suitable for all types of vehicle (road bike, mountain bike, folding and other types of vehicle)” and available for isis bottom brackets.
Hop past the break for another diagram…