# Can We Even RIDE The Siamese Penny-Farthing? Source: https://www.youtube.com/watch?v=AkNqCJeeC48 Recap page: https://rapidrecap.app/video/AkNqCJeeC48 Generated: 2025-12-04T15:34:14.033+00:00 --- ## Quick Overview The creators successfully rode the Siamese Penny-Farthing, a tandem bicycle built with two penny-farthing style front ends welded back-to-back, completing five specific challenges including riding solo, riding tandem, performing a rear-steer circle, swapping pilot/copilot roles, and crab-walking, proving the highly unstable and counter-intuitive design was rideable despite initial difficulties. **Key Points:** - The Siamese Penny-Farthing, constructed by welding two unicycle-like bicycle front ends back-to-back with a central drive system, was successfully ridden by two people facing opposite directions. - The first challenge, 'Riding Solo,' was successfully completed by one rider, noting that the front wheel's pedal placement caused the front wheel to hit the rider's leg when attempting to turn. - Challenge #2, 'Riding Tandem,' required both riders to pedal backward while the pilot (front rider) kept their arms dead straight, which they accomplished, noting the rear rider's backward pedaling was necessary. - Challenge #3, 'The Rear Steer Circle,' involved initiating a turn by having the rear rider steer, which resulted in a super tight turn, proving the counter-intuitive steering mechanism worked. - Challenge #4, 'Pilot Copilot Swap,' involved reversing roles, where the original pilot (now copilot) had to pedal backward while the original copilot (now pilot) steered forward, which they managed after some practice. - Challenge #5, 'Crabwalk,' involved turning both front wheels sideways and pedaling, causing the bike to move sideways, which they also successfully demonstrated. - The entire process, especially the tandem maneuvers, was described as incredibly fun but very hard and required constant communication and relaxation from both riders. ![Screenshot at 00:02: The two riders successfully mount and ride the Siamese Penny-Farthing back-to-back, demonstrating the initial feasibility of the counter-intuitive design.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-00-02.png) **Context:** The video features two cyclists testing the rideability of a custom-built, highly unusual bicycle referred to as the 'Siamese Penny-Farthing.' This bike is essentially two penny-farthing style bicycles (characterized by one very large front wheel and a small rear wheel, though this custom version uses two equally large wheels connected via a central drivetrain and frame) welded together so the riders face opposite directions. The creators set up five specific challenges to test the bike's stability and maneuverability under various conditions. ## Detailed Analysis The video documents the testing of a custom-built 'Siamese Penny-Farthing,' a tandem bicycle where riders face opposite directions, connected by a central frame and drivetrain (00:04). The host outlines five challenges to test its rideability. Challenge #1, 'Riding Solo,' was completed, though the unique geometry caused the front wheel's pedal to hit the rider's leg when turning (00:47, 01:54). Challenge #2, 'Riding Tandem,' required the front rider (pilot) to keep arms straight while the rear rider (copilot) pedaled backward; they successfully managed this, noting it worked better than expected (00:54, 01:05). Challenge #3, 'The Rear Steer Circle,' involved the rear rider controlling the direction, which they completed successfully, noting the resulting tight turns (1:13). Challenge #4, 'Pilot Copilot Swap,' tested role reversal. The pilot steered forward while the copilot pedaled backward; after some difficulty, they succeeded (1:17, 06:58). Challenge #5, 'Crabwalk,' required turning both front wheels sideways and pedaling, causing the bike to move sideways, which they also achieved (1:31). The creator noted that the bike is inherently unstable due to the reversed steering dynamics and the lack of a traditional crossbar, requiring constant adjustment (04:01, 05:27). Despite the difficulty, they concluded that riding tandem was surprisingly fun once momentum was gained (06:57, 07:34). ### Introduction and Bike Overview - The Siamese Penny-Farthing is introduced as a bike with two riders facing opposite directions, each with their own set of handlebars and pedals connected by a central drivetrain (00:04 - 00:32). ### Challenge #1 - Riding Solo: One person successfully rides the bike alone, though the front rider's leg placement interferes with the front wheel's pedal stroke during turns (00:47 - 01:54). ### Challenge #2 - Riding Tandem: Two people ride facing opposite ways, with the pilot (front) steering straight and the copilot (rear) pedaling backward, which they successfully achieve (00:54 - 05:57). ### Challenge #3 - The Rear Steer Circle: The riders successfully turn in a tight circle by initiating the turn with the rear rider's steering input (1:13 - 02:22). ### Challenge #4 - Pilot Copilot Swap: The riders swap roles, with the new pilot steering forward and the new copilot pedaling backward, which they manage after some instruction (1:17 - 08:53). ### Challenge #5 - Crabwalk: The riders attempt to steer both front wheels sideways simultaneously to move the bike laterally, which they also achieve (1:31 - 02:55). ### Conclusion and Engineering Notes - The riders conclude the bike is incredibly hard to ride but fun, noting that the frame flexes significantly and the center wheel is purely ornamental (07:50 - 08:33 - 10:18). ![Screenshot at 00:03: The two riders stand on either side of the custom-built Siamese Penny-Farthing, highlighting its symmetrical, head-to-head design.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-00-03.png) ![Screenshot at 00:33: A comparison shot showing the Siamese Penny-Farthing next to a standard single penny-farthing, emphasizing the unique dual-rider construction.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-00-33.png) ![Screenshot at 00:47: Challenge #1, 'Riding Solo,' begins, showing the single rider struggling slightly with the unusual setup.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-00-47.png) ![Screenshot at 01:14: Demonstration of Challenge #3, 'The Rear Steer Circle,' where the bike turns sharply due to the rear rider's steering input.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-01-14.png) ![Screenshot at 08:23: A computer rendering in Photoshop shows the exact design specifications the creator provided to the fabricator, confirming the symmetrical, large-wheel design.](https://ss.rapidrecap.app/screens/AkNqCJeeC48/00-08-23.png)