The Light Speed Tourbillon Transmission (LSTT) is Koenigsegg’s Gemera-specific version of its nine-speed Light Speed Transmission family. It packages gear-train cassettes around the Gemera’s engine and works with the car’s hybrid layout; Koenigsegg says that layout also eliminates the need for a separate reverse gear and starter motor. “Tourbillon” is a Swiss-watchmaking reference, not a mechanical component inside the gearbox.
What the LSTT is
Koenigsegg describes the LSTT as a variant of the Light Speed Transmission first used in the Jesko, redesigned for the Gemera. The Gemera’s technical specifications list it as a nine-speed, multi-clutch gearbox, alongside four-wheel drive and four-wheel torque vectoring. Koenigsegg’s LSTT description and its Gemera technical specifications establish those points.
As an Amazon Associate I earn from qualifying purchases.
“Multi-clutch” is the manufacturer’s description. The published material cited here does not state the LSTT’s clutch count, gear ratios, or shift times, so those details should not be inferred from specifications for the original LST.
How the Gemera-specific transmission is arranged
Koenigsegg says the LSTT’s gear-train cassettes wrap around the engine and provide drive to the rear wheels and a front-facing driveshaft. That is a description of the packaging and drive connections, not a complete torque-flow diagram; the cited information does not detail every internal path or ratio.
#1 Best Overall
- Brand new box, Limited edition.
- True-to-scale detail. Detailed interior, exterior.
- Real rubber tires
- Made of diecast metal with some plastic parts. Dimensions
- Officially licensed product.
The Gemera’s layout, including its Dark Matter electric motor, lets the transmission do without a dedicated reverse gear or a separate starter motor, according to Koenigsegg. The company also says the LSTT’s simplified internals and housing make it lighter than the regular LST.
How it differs from the Jesko’s LST
The LSTT belongs to the same transmission family as the Jesko’s Light Speed Transmission, but it is designed around the Gemera’s packaging and driveline. Koenigsegg says its nine-speed gear cluster is closely related to the clusters used in the Jesko and CC850 configurations.
Rank #2
- Brand new box
- Real rubber tires.
- Detailed interior, exterior.
- Made of diecast metal with some plastic parts.
- Manufacturer's original unopened packaging.
| Feature | Gemera LSTT | Original LST context |
|---|---|---|
| Intended application | Designed specifically for the Gemera, according to Koenigsegg’s Gemera model page. | First seen in the Jesko; the LST family also appears in the CC850, according to Koenigsegg’s LST page. |
| Speed count | Nine speeds, per the Gemera technical specifications. | Nine speeds, per Koenigsegg’s LST description. |
| Published clutch detail | Described as multi-clutch; an exact clutch count is not stated in the cited LSTT information. | Koenigsegg describes the original LST as having seven wet multidisc clutches. |
| Reverse and starter hardware | Koenigsegg says the Gemera layout does not require a reverse gear or separate starter motor. | Not stated in the cited LST description. |
| Gear selection feature | Not stated in the cited LSTT information. | The LST page describes UPOD (“Ultimate Power On Demand”), which selects an appropriate gear and can shift across multiple gears. |
The original LST’s seven-clutch specification and UPOD explanation provide context for the transmission family, but they are not specifications for the LSTT. Koenigsegg’s public descriptions cited here do not give a complete side-by-side account of dimensions, mass, ratios, shift times, or clutch count for both gearboxes.
Why Koenigsegg calls it “Tourbillon”
Koenigsegg says the name nods to Swiss watchmaking. A tourbillon is a watchmaking complication intended to improve a mechanical watch’s accuracy; here, the reference is an analogy for an intricate automotive mechanism, not a claim that the gearbox contains a literal watch tourbillon.
Rank #3
- Koenigsegg Jesko Absolut Livery Edition - 5473DF Kinsmart Model Vehicle
- 1/36 Scale Collectible Model Sports Car
- This is a 5"Lx 2.25"Wx 1.25"H Diecast Metal model with some plastic parts
- Openable Front Doors, Pullback Motor Action
- 1 car, no box
In Koenigsegg’s 2023 production-specification Gemera press release, founder Christian von Koenigsegg explained: “We added ‘Tourbillon’ to the name of the LST, as this mechanism represents the automotive equivalent of a high-end Swiss watch and is simply beautiful.” The statement was published through Cision.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What Koenigsegg says about weight
Koenigsegg claims the Gemera’s drivetrain is approximately 150 kg lighter as a result of its powertrain design. That figure is the company’s claim on its Gemera model page, not an independently verified measurement or a published mass comparison of the LSTT alone. The claim concerns drivetrain weight reduction, so it should not be read as the gearbox’s weight.
Quick Recap
Best Value
- Authentic Race Day Design: Hot Wheels Koenigsegg Jesko 2020 (JBB59) in sporty race day design
- Detailed Hypercar Model: Detailed hypercar with distinctive rear spoiler and aerodynamic look
- Metallic Turquoise Finish: Metallic turquoise finish with black accents for authentic racing style
- Official Licensing: Officially licensed Koenigsegg Automotive AB product
- Collector Scale: 1:64 scale collectible for supercars and motorsport fans
Rank #4
- SOLIDO BRAND QUALITY: Solido is known for producing high-quality diecast model cars with exceptional detail, durable construction, and accurate representations of real vehicles. Each model is crafted with precision and built to last.
- KOENIGSEGG BRAND MODEL: This Koenigsegg Jesko model represents a modern hypercar associated with the 2022 model year. It features extreme aerodynamic styling, low-slung proportions, and distinctive design cues, capturing the visual identity and engineering focus associated with high-performance Swedish hypercar development.
- FEATURES & DETAILS: This 1:43 scale diecast model measures approximately 4.5 inches in length and is finished in Tang Orange. Designed as a sealed display model, it highlights hypercar proportions, aerodynamic body lines, and performance styling elements, offering a representation suited for collectors focused on modern exotic vehicles and high-performance automotive design.
- TOP QUALITY MATERIALS: Constructed using a diecast metal body with precision plastic components, this model ensures durability and refined detailing. The paint finish is evenly applied for a consistent appearance, while smaller elements enhance realism. Suitable for long-term display without compromising presentation quality.
- COLLECTIBLE DISPLAY ITEM: Intended for collectors aged 14 and above, this Koenigsegg Jesko model is designed strictly for display. Its extreme styling and detailed execution make it suitable for collections focused on hypercars, modern performance vehicles, and automotive enthusiasts seeking visually striking diecast replicas.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errors
