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Item #:
146543996
Motorcycle Racing Crankshaft for S51 S53 S70 S83 SR 50 80 KR51 Two Stroke Engine Parts
Item #:
146543996
SCR 2753
Price Details
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*All items will import from US
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Imported from USA store
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Order now and get it around Thursday, August 06
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Designed for race reliability, this crankshaft ensures smooth operation and unparalleled durability for your two-stroke engine.
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What Stands Out
Precision Engineering
Crafted with high precision, this crankshaft ensures optimal performance and durability, enhancing the longevity of your two-stroke engine for a superior riding experience.
Compatibility
Designed specifically for models S51, S53, S70, S83, SR 50, and KR51, this part guarantees a perfect fit, making installation seamless and hassle-free for motorcyclists seeking reliable performance.
Improved Performance
Enhancing engine efficiency and power output, this crankshaft addresses common performance issues, ensuring a smoother and faster acceleration for thrill-seekers on the racetrack or open road.
Product Details
| Item Weight | 6 lbs (2.72 kg) |
Who Should Buy?
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Racing Enthusiasts
Ideal for racers seeking high-performance upgrades for their two-stroke motorcycles, enhancing speed and agility.
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Restoration Projects
Perfect for hobbyists restoring vintage motorcycles needing quality crankshaft replacements to ensure authentic performance.
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Mechanics and Technicians
Great for professionals needing reliable and durable engine parts for maintenance and repairs on two-stroke engines.
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Casual Riders
Not suitable for casual riders seeking basic functionality rather than high-performance racing components in their motorcycles.
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Electric Bike Owners
Inappropriate for electric bike users as the product is designed solely for traditional two-stroke gasoline engines.
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Beginner Mechanics
May overwhelm novice mechanics due to complex installation and specific tuning requirements necessary for optimal performance.
Product Description
Motorcycle Racing Crankshaft for S51 S53 S70 S83 SR 50 80 KR51 Two Stroke Engine Parts
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a motorcycle racing crankshaft?
Answer: A motorcycle racing crankshaft is a vital engine component that converts linear motion from the pistons into rotational motion, which drives the motorcycle's wheels. Designed for performance, racing crankshafts are engineered to enhance power output and reduce weight compared to standard crankshafts. They often feature improved materials and precision engineering to withstand high RPMs and extreme conditions, making them ideal for competitive racing scenarios. -
Question:
How does a crankshaft impact engine performance?
Answer: The crankshaft significantly affects engine performance by influencing the power delivery and efficiency. A well-designed crankshaft ensures optimal balance and less vibration, leading to smoother operation and better throttle response. Additionally, when paired with other high-performance parts, such as tuning kits or exhaust systems, an upgraded crankshaft can dramatically enhance acceleration and overall speed, making it essential for racers looking to optimize their machine. -
Question:
What models are compatible with the S51 S53 S70 S83 SR 50 80 KR51 crankshaft?
Answer: The S51, S53, S70, S83, SR 50, SR 80, and KR51 models are specifically designed to work with this crankshaft, which is tailored for two-stroke engines. Each model has unique characteristics that benefit from the crankshaft’s build quality and design. Whether you’re reinforcing an existing setup or building a new one, using the right crankshaft ensures that your engine runs optimally and can handle the rigors of racing. -
Question:
What materials are typically used in racing crankshafts?
Answer: Racing crankshafts are primarily made from high-strength steel or aluminum alloys to withstand rigorous performance demands. These materials provide a balance of durability and weight savings. Advanced manufacturing techniques such as forging and CNC machining are employed to enhance structural integrity. The use of these high-performance materials ensures that the crankshaft can tolerate higher RPMs and aggressive driving without failure. -
Question:
What are some signs that a crankshaft needs to be replaced?
Answer: Common signs that a crankshaft may need replacement include unusual vibrations, knocking noises from the engine, or reduced engine performance. Additionally, if there is visible wear, such as scoring on the crankshaft or unusual play in the bearings, it's a clear indication that it's time for a replacement. Regular inspections can help identify these issues before they lead to significant damage. -
Question:
Can I install a racing crankshaft myself?
Answer: While it’s possible to install a racing crankshaft yourself, it requires a good understanding of engine mechanics and proper tools. If you have prior experience with motorcycle engines, you may find the process manageable, as it involves disassembling the engine, removing the old crankshaft, and installing the new one. However, if you are uncertain, it's advisable to seek assistance from a professional mechanic to ensure correct installation and avoid potential engine damage. -
Question:
What are the advantages of using a racing crankshaft over a stock version?
Answer: Using a racing crankshaft offers various advantages over stock versions, including increased power output, better throttle response, and improved efficiency. Racing crankshafts are typically lighter and more robust, allowing for higher RPMs and better performance under stress. This enhancement can be particularly beneficial in competitive racing environments, where every bit of power and speed counts. Upgrading to a racing crankshaft can significantly elevate your motorcycle's capabilities. -
Question:
Is a racing crankshaft suitable for daily use?
Answer: While a racing crankshaft is designed for high performance, it may not be ideal for daily use due to its design focus on speed and power over fuel efficiency and longevity. Racing components usually prioritize performance under extreme conditions, which can lead to increased wear during regular driving. If you’re using your motorcycle for daily commuting, a standard crankshaft might be more suitable to ensure reliability and efficiency. -
Question:
What tools do I need to install a new crankshaft?
Answer: To install a new crankshaft, you'll need basic motorcycle repair tools, including socket sets, wrenches, screwdrivers, and a torque wrench. Specialty tools like a crankshaft puller may also be required to safely remove the old crankshaft. Additionally, having access to a repair manual specific to your motorcycle model can guide you through the process efficiently. Ensuring you have the right tools on hand can make the installation much smoother. -
Question:
Where can I buy Motorcycle Racing Crankshaft for S51 S53 S70 S83 SR 50 80 KR51 Two Stroke Engine Parts in Seychelles?
Answer: You can purchase the Motorcycle Racing Crankshaft for S51, S53, S70, S83, SR 50, SR 80, and KR51 at Ubuy. They offer a variety of parts tailored for two-stroke engines and have a user-friendly online platform where you can easily find and order the components you need. Ubuy is known for its reliable service and extensive selection, ensuring you get the right parts for your motorcycle racing needs.
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“Accurate delivery timing given”
16 June 2026 · via Trustpilot
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“Not madly expensive like I thought, and much quicker than promised.”
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12 June 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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SCR 2753
Order now and get it around Thursday, August 06
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
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Fastest cross-border delivery
Features & Benefits
- Compatible with S51, S53, S70, S83, SR50/80, and KR51 models.
- Constructed from forged steel with reinforced crank arms.
- Micro-balanced components provide optimal performance at high RPM.
- Hardened surfaces promote long-lasting durability.
- Direct bolt-on replacement for easy installation.
- Engineered for maximum race reliability.