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Item #:
45051753
Bnineteenteam Crank Arm 170mm Aluminum Alloy Bicycle Left Hand Crank Arm Replacement Accessory for Mountain Bike Road Bike
Item #:
45051753
TZS 70463
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Friday, August 21
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Made of premium aluminium alloy, lightweight, high strength and deformation resistance, durable for long time use.
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What Stands Out
Durable Material
Crafted from high-quality aluminum alloy, this crank arm ensures long-lasting strength and resistance to wear, making it ideal for both mountain and road biking.
Perfect Fit
Designed specifically as a left-hand replacement, this crank arm offers a precise fit for various bike models, enhancing performance and ensuring safety during rides.
Lightweight Design
Weighing only 170mm, this crank arm provides a lightweight solution without sacrificing durability, improving overall bike performance and rider efficiency on various terrains.
Product Details
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
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Mountain Bikers
Ideal for mountain bike enthusiasts needing a durable replacement for their left crank arm during rugged trails.
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Casual Riders
Great for casual cyclists looking for a straightforward replacement part to maintain bike performance and safety.
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Budget-Conscious
A cost-effective solution for those needing reliable bike components without breaking the bank.
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Professional Racers
High-performance cyclists may require advanced materials and technology, making this basic model unsuitable.
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Heavyweight Bikers
Users exceeding weight limits may find aluminum arms insufficiently reliable for robust performance and safety.
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Custom Build Enthusiasts
Cyclists customizing their bikes for specific purposes may not find a standard crank arm fits their unique needs.
Product Description
Bnineteenteam Crank Arm 170mm Aluminum Alloy Bicycle Left Hand Crank Arm Replacement Accessory for Mountain Bike Road Bike
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a crank arm and why is it important for my bicycle?
Answer: A crank arm is a critical component that connects the pedals to the bicycle's bottom bracket, allowing you to transfer your pedaling energy to the bike's drivetrain. Its importance lies in ensuring efficient power transfer and maintaining the bike's performance. If your crank arm is damaged or bent, it can lead to poor riding experience and impact your bike's overall functionality, making timely replacement essential. -
Question:
Is this crank arm compatible with both mountain and road bikes?
Answer: Yes, this crank arm is designed to be versatile, making it compatible with both mountain bikes and road bikes. It features a standard design that fits a wide range of bike models, helping you maintain performance regardless of your biking style. Always check your bike specifications to ensure compatibility before purchasing. -
Question:
What materials are used in the construction of this crank arm?
Answer: This crank arm is made from high-quality aluminum alloy, known for its strength and lightweight properties. This material is particularly advantageous as it provides durability without adding extra weight to your bike, ensuring optimal efficiency during rides. It is suitable for various terrains, from rough mountain trails to smooth urban roads. -
Question:
How do I install the left-hand crank arm on my bicycle?
Answer: Installing the left-hand crank arm involves a few steps: first, remove the existing crank arm using a crank arm puller. Then, align the new crank arm with the spline on the bicycle's bottom bracket and secure it in place using the crank bolt. Make sure to tighten it appropriately to prevent any movement during rides. For best results, refer to your bike's manual or seek assistance from a local bike shop. -
Question:
What are the length and specifications of this crank arm?
Answer: This crank arm measures 170mm in length, a standard size ideal for most adult cyclists. This length provides a good balance between power transfer and leg extension, making it suitable for both mountain bike and road bike applications. Ensuring you have the correct crank arm length is essential for comfortable and efficient pedaling. -
Question:
Can I use this crank arm with a Shimano or SRAM drivetrain?
Answer: Yes, this crank arm is compatible with Shimano and SRAM drivetrains, which are among the most commonly used in both mountain and road bikes. Compatibility ensures that you can seamlessly integrate the crank arm into your existing setup without compromising performance. Always verify your bike's drivetrain type for best compatibility. -
Question:
What tools will I need to replace my crank arm?
Answer: To replace your crank arm, you will typically need a few essential tools: a crank arm puller, a socket wrench, and a torque wrench. These tools enable you to remove the old crank arm and properly install the new one, ensuring all components are securely fastened. Having the right tools is vital for a safe and efficient replacement process. -
Question:
Does this crank arm come with installation instructions?
Answer: While the crank arm may not come with detailed installation instructions, it is designed for straightforward installation. You can refer to online resources or bike maintenance manuals that provide step-by-step guides on how to install crank arms. Familiarizing yourself with the process can enhance your understanding and properly equip you for the task. -
Question:
What should I do if my crank arm is damaged?
Answer: If your crank arm is damaged, it is advisable to replace it promptly to avoid further issues. Signs of damage can include visible bends, cracks, or unusual noises when pedaling. A functional crank arm is critical for your bike's performance, so replacing a damaged part ensures a smoother and safer riding experience. -
Question:
Where can I buy Crank Arm 170mm Aluminum Alloy Bicycle Left Hand Crank Arm Replacement Accessory for Mountain Bike Road Bike in Tanzania?
Answer: You can purchase the Crank Arm 170mm Aluminum Alloy Bicycle Left Hand Crank Arm Replacement on Ubuy in Tanzania. Ubuy offers a wide selection of bicycle components, ensuring you find the replacement part you need quickly and conveniently. Always check Ubuy for the latest availability and related accessories to enhance your biking experience.
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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”
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“Not madly expensive like I thought, and much quicker than promised.”
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6/7/2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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- 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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TZS 70463
Order now and get it around Friday, August 21
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.)
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Features & Benefits
- Premium aluminum alloy construction
- Standard precision cutting for perfect fit
- Easy to install with great paint and fine workmanship
- Rust-proof, strong, durable and anti-deformation
- Four types to choose from
- Compatible with many bike models
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