Trikemare
| Trikemare | |
|---|---|
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| Built By | Alex Shakespeare |
| Theme | Christmas Trike |
| First Race | Scrumpy Cup |
| Current Status | Retired - Dismantled |
| Motor | MY1020 2000W Brushless Scooter Motor |
| ESC | 2000W Unbranded Brushless E-Bike ESC |
| Battery | 12S 12Ah LiPo (2x6S Series) |
| Transmission | Single Stage T8F Chain Reduction |
| Contact | |
| View all Racer Profiles | |
Background
Trikemare is one of the early Hackys of the series and the first build of Alex. It's name was earned due to it's uniquely terrible handling characteristics making it a nightmare to drive. The original theme was intended to be a WW2-esque fighter plane look but was hastily equipped with half a christmas tree and tinsel. Trikemare never ran a fully fledged theme before being retired partly on safety grounds.
Having a light chassis and geared for high speed meant Trikemare was capable of a competitive race however it's lack of cornering ability severely hampered consistent performance especially on smaller tracks. Reverse trikes are inherently less stable which when combined with the fact it was a first Hacky build with questionable vehicle dynamics meant Trikemare rolling in corners was a frequent sight on the track.
Trikemare was retired in favour of CyberQuad donating it's motor and ESC to the new build.
Construction
Trikemare had a very simple and light steel frame. Initially plywood and then HDPE mounts were used to hold components onto the frame. The front steering setup uses go-kart parts while the rear uses mini-moto parts.
The electronics were all held in the rear section with an ammo box holding the battery above the rear wheel with the ESC on the side. The MY1020 2000W brushless scooter motor is underslung beneath the frame rails. This did however force the frame rails higher leading to a higher centre of mass. The chain run was also fairly long and was unable to be easily tensioned leaving the chain to be a continual problem over the life of the Hacky. The underslung motor would occasionally move laterally enough to unseat the chain. A single cable operated brake was placed on the rear wheel. The drive was geared to 27MPH, faster than typical.
The front section held the steering of the trike made from off the shelf go-kart parts. Trikemare notably has the wheels setup in reverse camber, initially this was done to prevent it striking the ground on rougher fields. After having the front end rebuilt (Into the red version) this allowed the front wheels to be flipped to the correct camber, however this introduced a death-wobble at higher speeds so was not run. The steering column was well braced to allow the rider to lean their weight off the column which was needed for best performance when racing.
The seat (From an IKEA stool) was mounted on spring mounts for comfort, though the seat movement could catch unaware riders out.
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Powertrain
MY1020 2000W Scooter motor powered by a 2000W unbranded E-Bike ESC. T8F single stage reduction geared the Hacky to 27MPH. Initially run on 10S LiPo it was moved to 12S fairly rapidly for more performance.
Race Results
Likely on it's side in several of the corners.
BOM
| Item | Cost | Total |
|---|---|---|
| ESC | £48 | £335.5 |
| Motor | £80 | |
| Go-Kart Wheels | £35 | |
| Stub Axles | £20 | |
| Go-Kart Hubs | £27.5 | |
| Rear Wheel | £27 | |
| Steering Column | £9 | |
| HDPE | £10 | |
| Chain | £5.5 | |
| Seat | £12 | |
| Sprocket | £6 | |
| Threaded Rod | £6 | |
| Steel | £35 | |
| Handle Grips | £8.5 | |
| Plywood | £6 |
Limitations
Trikemare mainly suffered from being a first attempt at any kind of Hacky or similar vehicle from the builder. While it could hold it's own in races it was unruly and difficult to ride with a high centre of mass. Instability in the corners often resulted in rolling over.
In addition the characteristics of a reverse trike simply do not aid them in racing compared to 4 (Or more) wheeled hackys.
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