The Talaria Complete Gearbox is the factory internal reduction gearbox for the Sting series — fits Sting 4000, Sting Offroad, Sting Onroad, and Sting R Road Legal. Sealed sub-assembly, pre-filled with gear oil. Replacement after gearbox damage or seal failure.
Complete Gearbox for TL45, Sting, Sting R
$279.99
Description
Last reviewed: 14 May 2026 by Talaria USA Editorial Team, 10+ years e-moto rider and mechanic.
The Talaria gearbox (complete OEM reduction gearbox) is the factory internal reduction gearbox for the Sting series — fits Sting 4000 (TL4000), Sting Offroad (TL3000), Sting Onroad (TL45), and Sting R Road Legal (TL50). Sealed sub-assembly that drives the secondary chain from the motor output shaft. Replacement after gearbox-oil contamination, gear-tooth damage, or output-shaft seal failure.
Talaria Gearbox: Gearing Profile
The Sting gearbox is a sealed internal reduction unit — quieter than chain primaries, lower maintenance than belt primaries. Comes pre-filled with the correct gear oil; no field-filling required. Fitment runs across the Talaria Sting platform, with model-specific notes below.
| Model | Fits | Notes |
|---|---|---|
| Talaria Sting 4000 (TL4000) | Yes | Direct OEM replacement |
| Talaria Sting Offroad (TL3000) | Yes | Direct OEM replacement |
| Talaria Sting Onroad (TL45) | Yes | Direct OEM replacement |
| Talaria Sting R Road Legal (TL50) | Yes | Direct OEM replacement |
| Talaria Sting R Off Road (2-speed) | No | 2-speed variant uses different gearbox |
Build Sheet
| Spec | Value |
|---|---|
| Type | Sealed internal reduction gearbox |
| Reduction stage | 2-stage (motor → secondary chain) |
| Output | Drives chain to rear sprocket |
| Compatible models | TL3000, TL4000, TL45, TL50 |
| Pre-filled with gear oil | Yes |
| Service interval | Oil change every 50-100 hours of hard riding |
| Manufacturer | Talaria (OEM) |
Gearbox failures are rare on the Sting series. Most replacements happen because of crash damage, water ingress past the seals, or extreme over-amped use that strips gear teeth. See the rest of our Talaria parts catalogue for matching components.
Install Notes
Difficulty: Advanced. Motor and chain need to come off before the gearbox can be unbolted. Tools: torque wrench, hex keys, motor puller, chain tool. Time: 2-3 hours. Re-grease motor mating surface before fitting. Re-torque all gearbox-mount bolts to Talaria service-manual spec.
Frequently Asked
How do I know my gearbox needs replacement?
Symptoms: grinding sounds from the gearbox area, oil weeping at the output-shaft seal, sudden loss of drive (chain still spins but bike does not move), or visible play in the output shaft. Most Sting gearboxes last the life of the bike with regular oil changes.
What oil does the gearbox take?
Refer to your Talaria service manual for the specific weight and brand. Most Sting trims use a synthetic gear oil similar to motorcycle final-drive oil. Do not use engine oil — it has different viscosity and additive packages.
Trust Signals & Warranty
Talaria covers OEM drivetrain components against manufacturing defects with a 12-month warranty. Talaria USA covers a 30-day return window on unmodified parts and ships from our US warehouse in 2-4 business days.
Quick Comparison
| Complete Gearbox for TL45, Sting, Sting R | Motorcycle Drive Chain 420-106 Links for TL45, Sting, Sting R | Front Sprocket 14T for TL45, Sting, Sting R, X3 MX | Lextek Motorcycle Drive Chain 420-106 Links Gold | Swingarm for TL45, Sting | |
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| SKU | — | — | — | — | — |
| Rating | |||||
| Price | $279.99 | $24.99 | $16.00 | $12.99 | $274.99 |
| Type | Sealed internal reduction gearbox | N/A | N/A | N/A | N/A |
| Stage | 2-stage reduction | N/A | N/A | N/A | N/A |
| Pre-filled | Yes (with gear oil) | N/A | N/A | N/A | N/A |
| Manufacturer | Talaria | Talaria (OEM) | Talaria | Lextek | Talaria (OEM) |
| Fits | TL3000, TL4000, TL45, TL50 | N/A | TL3000, TL45, TL50, X3 MX | N/A | TL3000, TL45 |
| Pitch | N/A | 420 | 420 | 420 | N/A |
| Links | N/A | 106 | N/A | 106 | N/A |
| Material | N/A | Steel | N/A | Steel | N/A |
| Finish | N/A | Black (OEM) | N/A | Gold | N/A |
| Tooth count | N/A | N/A | 14T | N/A | N/A |
| Position | N/A | N/A | Front (gearbox output) | N/A | N/A |
| Component | N/A | N/A | N/A | N/A | Rear swingarm |
| Pivot bushings | N/A | N/A | N/A | N/A | Sold separately (SKU 1562) |
| Description | The Talaria Complete Gearbox is the factory internal reduction gearbox for the Sting series — fits Sting 4000, Sting Offroad, Sting Onroad, and Sting R Road Legal. Sealed sub-assembly, pre-filled with gear oil. Replacement after gearbox dam… | The Talaria OEM Drive Chain 420-106 Links is the factory secondary-drive chain for Sting 4000, Sting Offroad, Sting Onroad, and Sting R Road Legal. Steel construction, black finish, direct factory replacement. Premium-tier chain life vs the… | The Talaria 14T Front Sprocket is the OEM gearbox-output sprocket for Sting Onroad, Sting Offroad, Sting R Road Legal, and X3 MX. Stock 14-tooth spec; swap for 13T (quicker) or 15T (faster top speed) to tune gearing. | The Lextek 420-106 Gold Drive Chain is a budget-price 420-pitch, 106-link secondary-drive chain for Talaria Sting 4000, Sting Offroad, Sting Onroad, and Sting R Road Legal. Steel construction, gold finish. Less than half the OEM 420 chain p… | The Talaria OEM Swingarm is the factory rear swingarm for Talaria Sting Offroad (TL3000) and Sting Onroad (TL45). Direct bolt-on replacement with factory pivot, axle, and shock-mount geometry. Pivot bushings sold separately. |
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