Best Motorbike Crankshafts of 2026

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 9 Feb 2026

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Motorbike crankshafts are an essential component of any motorcycle engine. They help to convert the linear motion of the pistons into rotational motion, which is then used to power the wheels. Made from high-quality materials, such as forged steel or aluminium, these crankshafts are designed to withstand the stresses of high-speed riding and provide reliable performance. Whether you're a professional racer or a casual rider, a high-quality crankshaft can help to improve the performance of your bike and ensure that it runs smoothly for years to come.

At a Glance: Our Top Picks

PRATYAHARA Multi-Crankshaft Tool Set for Bikes Cover #TOP 1
PRATYAHARA Multi-Crankshaft Tool Set for Bikes
ftb score rating icon 9.8
GOOFIT Crankshaft for 2-Stroke Pocket Bikes Cover #TOP 2
GOOFIT Crankshaft for 2-Stroke Pocket Bikes
ftb score rating icon 9.7
cyclingcolors 2x Bike Cotter Pins Cover #TOP 3
cyclingcolors 2x Bike Cotter Pins
ftb score rating icon 9.5

Top 6 Motorbike Crankshafts

#TOP 1

PRATYAHARA Multi-Crankshaft Tool Set for Bikes

PRATYAHARA
500344469
as shown
PRATYAHARA Multi-Crankshaft Tool Set for Bikes Cover
PRATYAHARA Scooter Dirt Bike Motorcycle Multi- Crankshaft Tool Crankshaft Installation Tool Set

The PRATYAHARA Crankshaft Tool Set is expertly crafted from hardened steel, ensuring durability and longevity for your motorcycle maintenance needs. This high-quality tool set includes three sockets, sized M10, M12, and M14, providing versatility for various crankshaft installations. You can rely on this tool set to make your installation tasks more efficient, as it is designed to simplify the process and prevent damage to your bike. With its robust construction and thoughtful design, this tool set is a must-have for any motorbike enthusiast.

What We Like
Durable hardened steel material
High-quality design
Includes three versatile sockets
Simplifies crankshaft installations
Essential for motorbike maintenance
#TOP 2

GOOFIT Crankshaft for 2-Stroke Pocket Bikes

K073-003
GOOFIT Crankshaft for 2-Stroke Pocket Bikes Cover
GOOFIT Crank Shaft Crankshaft Replacement For 2 stroke 47cc 49cc Pocket Bike

The GOOFIT Crankshaft is a reliable replacement for 2-stroke 47cc and 49cc pocket bikes. With a pin-hole diameter of 12mm, it fits perfectly in your bike's engine. Made from high-quality metal, this crankshaft is designed to resist corrosion and provide durability, ensuring long-lasting performance. Its easy installation means you won’t need complicated tools, making it convenient for you to replace the crankshaft yourself, saving both time and money.

What We Like
Easy installation
Durable metal construction
Corrosion-resistant
Perfect fit for 47cc and 49cc
#TOP 3

cyclingcolors 2x Bike Cotter Pins

3701260802935
Silber
One Size
cyclingcolors 2x Bike Cotter Pins Cover
cyclingcolors 2x bike cotter pins crank crankshaft chainwheel bicycle motorbike motorcycle vintage steel

The cyclingcolors Cotter Pins are essential for any biking enthusiast. This set includes two high-quality cotter pins, each with a diameter of 9 mm and a length of 43 mm. These pins are universal, making them suitable for a variety of vehicles, including bicycles, mopeds, and motorcycles. Having reliable cotter pins ensures that your crankshaft and chainwheel remain securely fastened, enhancing safety and performance during your rides. With these cotter pins, you can enjoy peace of mind while cycling.

What We Like
Universal compatibility
Durable steel construction
Secure fastening
Includes two pins
#TOP 4

cyclingcolors Bike Cotter Pins Set

3701260802942
Silber
One Size
cyclingcolors Bike Cotter Pins Set Cover
cyclingcolors 2x bike cotter pins pin crank crankshaft vintage bicycle motorcycle motorbike

The cyclingcolors Cotter Pins are a must-have for any vintage bicycle or motorbike enthusiast. This set includes two cotter pins, which are essential for securely attaching the crankshaft to your bike. With a diameter of either 9 mm or 9.5 mm and lengths ranging from 39.5 mm to 44 mm, these pins offer versatility for various applications. Whether you're working on a bicycle, moped, or motorcycle, these cotter pins provide the reliability you need for smooth operation.

What We Like
Universal compatibility for various bikes
Multiple sizes for different needs
Secure crankshaft attachment
Durable for long-lasting use
#TOP 5

Easyboost Crankshaft Bearing Mounting Tool

EB060
Other.
Taglia unica
Easyboost Crankshaft Bearing Mounting Tool Cover
Easyboost Crankshaft Bearings Mounting Tool for MBK Booster Nitro Yamaha Aerox Jog-R Bw's Trekker Rieju Xlimit F10 F12 Speedfight Piaggio Zip NRG AM6 TZR RS DT Derbi EURO 2-3-4 6203 6204

The Easyboost Bearing Tool simplifies the process of mounting bearings onto the crankshaft of 50cc scooters. With its innovative design, you can effortlessly install bearings thanks to the fine thread on the main screw, making the task much smoother. This tool is widely used in dealerships, allowing you to achieve professional results by simply turning the thrust nut with a flat wrench. Additionally, a video tutorial is available, guiding even beginners through the process of changing a crankshaft with ease.

What We Like
Easy to use
Professional quality
Video tutorial provided
100% French manufacturing
#TOP 6

MZ Crankshaft Washers for ETZ 250 Models

MZA
10066554
MZ Crankshaft Washers for ETZ 250 Models Cover
MZ pair of crankshaft washers for crankshaft, connecting rods - ETZ 250, 251/301

The MZ ETZ 250 Washers are essential components designed specifically for the MuZ / MZ ETZ 250 models from 1981 to 1985. These crankshaft washers ensure a secure fit for your connecting rods, helping to maintain the integrity of your motorbike's engine. By using these washers, you can enhance the overall performance of your bike, providing a smoother ride. They also help to prevent wear and tear, extending the life of your crankshaft and ensuring reliable operation when you hit the road.

What We Like
Compatible with multiple ETZ models
Enhances engine performance
Prevents wear and tear
Ensures secure fit
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is crankshaft in motorcycle?

The crankshaft is a mechanical part of an Internal Combustion (IC) engine which converts the reciprocating motion of a Piston into a rotational motion. In simple terms, a Crankshaft is a part that converts the energy from moving Pistons to drive the Flywheel.

2. What is a crankshaft and how does it work?

The crankshaft is essentially the backbone of the internal combustion engine. The crankshaft is responsible for the proper operation of the engine and converting a linear motion to a rotational motion. Crankshafts should have very high fatigue strength and wear resistance to ensure long service life.

3. What is the difference between the camshaft and crankshaft?

A camshaft uses egg-shaped “cams” to open and close engine valves (one cam per valve), while a crankshaft converts “cranks” (the up/down motion of the pistons) to rotational motion.

Editor's Notes

During our motorbike crankshaft research, we found 188 motorbike crankshaft products and shortlisted 6 quality products. We collected and analyzed 5,787 customer reviews through our big data system to write the motorbike crankshafts list. We found that most customers choose motorbike crankshafts with an average price of £20.00.

The motorbike crankshafts are available for purchase. We have researched hundreds of brands and picked the top brands of motorbike crankshafts, including PRATYAHARA, GOOFIT, cyclingcolors, Easyboost, MZA.

Written by
Joseph Prokop Avatar

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.