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2025 Thumpstar TSX140
Thumpstar
$2,397.00
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Thumpstar
2025 Thumpstar TSX140
Thumpstar TSX140cc Version 5 Mini Bike
The Thumpstar TSX140cc Version 5 is a revolutionary mini bike designed for riders who demand strength, reliability, and cutting-edge performance. Built from the ground up with a focus on durability, comfort, and power, this bike is a game-changer in the world of pit bikes and mini bikes. Whether you're a seasoned rider or a beginner, the TSX140cc offers an unparalleled riding experience with its advanced engineering, premium components, and attention to detail.
Key Features and Upgrades
1. Reinforced Tri-Bar Frame
The TSX140cc features a Tri-Bar Chassis, a significant upgrade from previous models. This frame is engineered for maximum strength and agility, providing a solid foundation for high-performance riding. Key improvements include:
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Header Pipe Rerouting: The exhaust header is now routed under the frame, reducing the risk of pipe burns and improving safety.
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Removable Footpeg Mounts: Easily replaceable footpegs and the option to remove the kickstand for racing.
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Adjustable Steering Stop: Enhanced control and customization for riders.
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Airbox Compatibility: The frame is designed to accommodate the new Thumpstar airbox, though it is not yet a stock option.
2. YX-R 140cc Engine
At the heart of the TSX140cc is the YX-R 140cc engine, delivering 11+ horsepower at the crank. This 4-stroke engine is built for reliability and power, ensuring you get off the line quickly and maintain strong performance throughout your ride. Features include:
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4-Speed Manual Gearbox: Smooth and precise shifting for optimal control.
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Molkt VM22 26mm Carburetor: Improved fuel efficiency and throttle response.
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Pipe Bomb 2.0 Exhaust System: Enhances low-end torque and top-end power for a balanced performance.
3. Advanced Suspension System
The TSX140cc boasts a linkage suspension system, a first for mini bikes. This system, inspired by full-size race bikes, provides:
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Smoother Ride Quality: Better handling over bumps, ruts, and jumps.
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Improved Cornering: Enhanced stability and control at high and low speeds.
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Adjustable Rear Shock: Customizable for rider comfort and terrain conditions.
4. Heavy-Duty Wheels and Axles
Thumpstar has upgraded the wheels and axles to ensure durability and performance:
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20mm Rear Axle: Heat-treated and hollow for strength without added weight.
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7075 Alloy Rims: Lightweight yet durable, paired with stainless steel spokes for maximum strength.
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Rim Lock: Prevents tire slippage during aggressive riding.
5. Enhanced Airbox Design
The new caged airbox is a standout feature, offering:
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Dual-Layer Air Filter: Superior filtration to protect the engine from harmful particles.
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Increased Airflow: Improves engine performance and horsepower.
6. Waterproof Electronics
The TSX140cc is equipped with waterproof wiring and connectors, ensuring reliable performance in all conditions. Key components include:
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Revking CDI, Rectifier, and Coil: Heavy-duty electronics for consistent power delivery.
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Waterproof Switch: Designed to withstand rain, mud, and harsh environments.
7. Additional Features
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GoPro Mount: Capture your off-road adventures in stunning HD.
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Wide Footpegs: 56mm stainless steel footpegs for better grip and comfort.
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3-Bolt Chain Guide: Keeps the chain securely in place, reducing the risk of derailment.
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Durable Guards: Protects critical components from damage during aggressive riding.
Specifications
| Category | Details |
|---|---|
| Engine | YX-R 140cc, 4-Stroke, 11+ HP |
| Gearbox | Manual, 4-Speed (N1234) |
| Carburetor | Molkt VM22 26mm |
| Exhaust | Pipe Bomb 2.0, 38mm Exhaust System |
| Suspension (Front) | VS1 Inverted Forks, 770mm Length |
| Suspension (Rear) | VS1 Linkage U Shock, 350mm Length (Adjustable) |
| Brakes (Front) | 220mm Disc, HSK Dual Piston |
| Brakes (Rear) | 190mm Disc, HSK Single Piston |
| Wheels (Front) | 7075 Alloy Rim, Stainless Spoke, 70/100-17 Tire |
| Wheels (Rear) | 7075 Alloy Rim w/ Rim Lock, Stainless Spoke, 70/100-14 Tire |
| Dimensions | Wheelbase: 1260mm, Seat Height: 880mm |
| Weight | Net Weight: 80kg, Gross Weight: 90kg |
| Fuel Tank Capacity | 3.4 Litres |
Assembly
Troubleshooting
Service
Brochure
Engine Parts List
Parts Breakdown List
Instruction Manual
Suspension / Wheel
Graphic Template
The TSX140 has received a complete overhaul for Version 5. Gone are the days of facing struggles of dealing with issues which are common on many other mini bikes. We have gone back to the drawing board and scratch built a New Frame, Airbox, Linkage Suspension, Hubs and Rims, and much more. This has not only allowed our bikes to become much more strong and reliable, but also gives the rider peace of mind knowing that, no detail has been left untouched.
Our design team has produced a piece of engineering art, the frames are a new Quad Bar which has made them stronger than ever. Along with the frame developments we made space and rigged them with mounts to accommodate our new caged airboxes, this allows a better air filtration system while increasing airflow into the carburetor and in turn more horsepower. A first on pit bikes and minibikes alike, we have scaled down the linkage from the likes of a full size race bike, and fitted it to these smaller sized 140s. The linkage provides a much smoother ride than traditional PDS style suspension which allows for faster cornering, high and low speed adjustments, and increased rider comfort. We have redesigned our hubs and created space for a much heavier duty 20mm rear axle, coupled with stainless spokes and alloy rims, which provide our strongest wheels to date. Check out our description video and the following spec lists to see these upgrades!
Frame
Thumpstar Tri-Bar Chassis
With developments in chassis strengthening and design, Thumpstar's new Tri-Bar Frame allows the bike to feel more solid under foot while allowing the bike to perform with greater agility and comfort than ever before. Additions to the frame allow the header pipe to be re-routed under the frame, reducing the likeliness of pipe burns to the legs, include removable footpeg mounts, which can be easily replaced and allow the kickstand to be removed for racing, and a reinforced adjustable steering stop. The new frame is also capable of housing the new Thumpstar airbox, but it is not yet a stock option.
GoPro Mount
Carry Box
Don't let your off-road experiences go undocumented. With the GoPro DirtBike Mount, you can capture every twist, turn, and jump in stunning HD quality, allowing you to relive your adrenaline-fueled moments again and again. Gear up and take your footage to the next level!
Throttle
Likee Throttle
Boost your ride with precision control and ergonomic comfort. Built tough for rough trails. Unlock your bike's full potential today!
MX Steezebar
The ultimate blend of style and performance for your dirtbike. Get ready to ride with confidence and stand out from the pack!
V5 Front Plate
Elevate your bike's style while safeguarding essential parts. Upgrade now and enhance your ride's aesthetic appeal while adding crucial protection.
Wheels
AK7 Wheels
We’ve redesigned and strengthened our AK7 wheels to give you the comfort of knowing buckled rims and loose spokes are a thing of the past. The cast aluminium hub has been changed to run a 6-bolt sprocket and 4-bolt disc while moving to a 20mm axle that allows for oversized wheel bearings. We’ve swapped those stretch prone steel spokes for anti-stretch and snap resistant stainless spokes. And lastly, the rims have been upgraded to top-of-the-line aluminium alloy.
Suspension
VS1 Front Forks
Our new line of VS1 front forks provide a plush yet stable ride through all those bumps, ruts and jumps. Improved outers coupled with our reliable valving lets the front end to have a settled movement while allowing greater front wheel feedback, keeping the fork to be rigid while handling bigger impacts.
Header and Heaader
Pipe Bomb 2.0 head pipe
A redesigned frame came with requirements for a new exhaust header. The new Pipe Bomb 2.0 head pipe from Thumpstar allows exhaust gasses to expand, cool, and ramp back up at a higher velocity when exiting. This results in a greater bottom, and low-end response while keeping the tuning in check for the top end.
Linkage
Swingarm and Linkage developments
The new line of TSX bikes have received yet another significant upgrade which brings performance closer to that of full-size motorcycles, rear linkage. Rather than traditionally attaching the shock to the top of the swingarm, we have scaled and applied linkage shared with the likes of full-size race bikes to attach to the bottom of the swingarm. This improves handling in the rear and completely changes the riding experience of these bikes.
Engine
YX-R 140 Engine
Giving you the thump you need to get off the line and the punch that gets you out of the gate, the YX-140 engine delivers a whopping 11+ HP at the crank. Precision engineering from Yin Xiang delivers a reliable and strong engine package that consistently gets the job done.
Airbox
One of our most exciting developments for 2020 was the design and production of our very own airboxes for the TSX and the TSB. Advances in 3D modelling and printing have allowed us to give you a system that provides much better air filtration with a dual-layer filter while increasing airflow to the engine. The airbox prevents harmful particles from entering your engine where traditional minibike foam filters would typically fail.
Waterproof Electronics
All of our new bikes come equipped with redesigned looms and electronics. We have done away with single flimsy wires and connectors and replaced them with heavy-duty multi-core wiring and sturdy connectors. Accompanied by water proof plugs and electronics such as the Revking CDI, Rectifier, and Coil, makes this is a far superior package to any of the competition.
Waterproof Switch
Designed to withstand the elements, our switch ensures reliable performance even in rain or mud. It's the perfect accessory for off-road adventures.
Rear Axle
We have increased our rear axle to 20mm and made it hollow, then heat treated it, which makes it a similar weight to the 15mm axle but much stronger. Finally, made it a Lockheed design so only need one 30mm spanner for removal.
Rear Shock
Boost your ride with enhanced stability and control. Crafted for off-road enthusiasts, our rear shock absorbs bumps and vibrations for a smoother ride.
3-Bolt Chain Guide
Maximize chain stability with ease. Engineered for durability and precision, our guide keeps your chain securely in place, minimizing the risk of derailment.
Guards
Stay protected and geared up with our durable guards! Upgrade your defense and ride with confidence!
Footpegs
Our new footpegs have been made 56mm wide, the same as aftermarket motocross 250/450 footpegs for better grip and rider comfort. We used high-quality stainless steel material for strength and to look fresh for years to come, finished off with perfectly fitting springs.
Free Spare Parts Kit
Product Packaging
Specifications
| ENGINE & TRANSMISSION | |
| Engine | YX | 4 Stroke |
| CC Rating | 140cc |
| Gearbox | Manual | 4 speed (N1234) |
| Starter | Kick |
| Carburetion | Molkt VM22 26mm |
| Exhaust | Pipe Bomb DW-1 | 38mm Exhaust System |
| Final Drive | PSC 6 Bolt Sprocket | 428 HD Chain |
| Top Speed | 90kph / 55mph (depending on gearing) |
| SUSPENSION, BRAKES, & WHEELS | |
| Suspension Front | VS1 Inverted Forks | Length 770mm | 45 / 48mm |
| Suspension Rear | VS1 Linkage U Shock | Length Adj 350mm (+10mm) |
| Brakes Front | 220mm Disc | HSK Dual Piston |
| Brakes Rear | 190mm Disc | HSK Single Piston |
| Wheel & Tire Front | 7075 Alloy Rim | Stainless Spoke | 70 / 100-17 |
| Wheel & Tire Rear | 7075 Alloy Rim w/ Rim Lock | Stainless Spoke | 70 / 100-14 |
| DIMENSIONS & WEIGHT | |
| Wheelbase (axle to axle) | 1260mm | 50" |
| Seat Height | 880mm | 35" |
| Product Weight N.W | G.W | 80 / 90 kg | 176 / 198 lbs |
| Tank Capacity | 3.4 Litres | 0.9 Gallon |
| Product Packing Size | 1420 x 430 x 640mm | 0.40m3 |
Thumpstar TSX140cc, mini bike, pit bike, 140cc dirt bike, off-road bike, YX-R 140cc engine, Tri-Bar frame, linkage suspension, 7075 alloy rims, Pipe Bomb 2.0 exhaust, waterproof electronics, GoPro mount, 4-speed manual gearbox, Molkt VM22 carburetor, VS1 inverted forks, 20mm rear axle, stainless steel spokes, dual-layer air filter, Thumpstar Version 5, off-road adventure bike, durable mini bike, high-performance pit bike.
Thumpstar TSX140cc, mini bike, pit bike, 140cc dirt bike, off-road bike, YX-R 140cc engine, Tri-Bar frame, linkage suspension, 7075 alloy rims, Pipe Bomb 2.0 exhaust, waterproof electronics, GoPro mount, 4-speed manual gearbox, Molkt VM22 carburetor, VS1 inverted forks, 20mm rear axle, stainless steel spokes, dual-layer air filter, Thumpstar Version 5, off-road adventure bike, durable mini bike, high-performance pit bike.
- Engine:
- 140cc
- Transmission:
- Manual
- Start:
- Kick Start
- Front Suspension:
- VS1 Inverted Forks, 770mm Length
- Rear Suspension:
- VS1 Linkage U Shock, 350mm Length (Adjustable)
- Wheel Sizes:
- 17" Front - 14" Rear 7075 Alloy Rims
- Axle Size:
- 20mm
- Seat Height:
- 35"
- If you want shipping quote call:
- 320-358-1994
- 0% Financing Available:
- Check out financing page
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