BFO Q2CSRO Cylinder Head 70CC ATC70 72CM3

( Brand: Bfo ), ( Manufacturer Part Number: Q2CSRO ), ( Bundle Listing: Yes ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Compatible Make: For Honda ), ( Compatible Model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65 ), ( Engine: 50cc, 70cc ), ( Engine Type: 4-stroke ), ( Exhaust Valve Outside Diameter: 20mm ), ( Fit 1: For Honda 50cc Large Bore ), ( Fit 2: For Honda 70cc Small Bore Cylinder ), ( Fit For: For Domed 50cc Or Flat Top 70cc ), ( Including: Cylinder Head ), ( Inner Bore Size: 39mm ), ( Intake Valve Outside Diameter: 23mm ), ( Items Included: Gasket ), ( Length: 66mm ), ( Machine Type: Off-road Motorcycle, Street Motorcycle ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Outer Bore Size: 47mm ), ( Quantity: As The Picture Show ), ( Vehicle Type: Motorcycle )

Review BFO 70cc Cylinder Head Assembly Honda fits CT70 TRX70 CRF70 XR70

BFO Q2CSRO 70cc Cylinder Head for Honda ATC70, CT70, TRX70, CRF70, and XR70 72cm3

The BFO Q2CSRO 70cc cylinder head is a precision-engineered component designed specifically for Honda ATC70, CT70, TRX70, CRF70, and XR70 models with a 72cm3 engine size. This cylinder head is a must-have upgrade for riders seeking improved performance, durability, and reliability from their mini-bikes.

This BFO cylinder head features a unique design with a large intake port that enhances the engine's breathing capacity, leading to increased power output and better throttle response. The oversized valves provide efficient gas exchange, ensuring optimal combustion and a more potent engine.

The cylinder head is made from high-quality aluminum alloy, ensuring lightweight construction and excellent heat dissipation. Its durable design ensures it can withstand the rigors of off-road riding, providing long-lasting performance.

Moreover, the BFO Q2CSRO cylinder head comes with pre-machined surfaces, making it easy for users to install it on their Honda mini-bikes without the need for additional machining. Its precise fit and finish ensure a seamless integration with the engine, minimizing the risk of leaks and other issues.

The cylinder head's advanced design also includes improved cooling fins, which provide enhanced cooling capacity, preventing the engine from overheating even during prolonged use. This cooling improvement ensures consistent performance, allowing riders to enjoy their mini-bikes for longer periods without worrying about engine temperatures.

In summary, the BFO Q2CSRO 70cc cylinder head is an excellent upgrade for Honda ATC70, CT70, TRX70, CRF70, and XR70 owners looking to enhance their mini-bike's performance, durability, and reliability. With its large intake port, oversized valves, lightweight aluminum alloy construction, and improved cooling fins, this cylinder head is the perfect solution for riders seeking the ultimate off-road experience.

Buying a BFO Q2CSRO 70cc cylinder head for a Honda ATV model such as ATC70, CT70, TRX70, CRF70, or XR70 with a 72cm3 engine comes with its advantages and disadvantages. Here's a breakdown of each:

1. Improved Performance: A new cylinder head can lead to better combustion, increased power, and improved fuel efficiency.

2. Durability: A high-quality cylinder head can last longer than a worn-out or damaged original part.

3. Enhanced Powerband: A new cylinder head can provide a broader powerband, making the ATV more responsive and fun to ride.

4. Smoother Running: A new cylinder head can lead to smoother engine operation, reducing vibration and engine noise.

1. Cost: Replacing a cylinder head can be an expensive repair, especially if you choose to buy a high-performance aftermarket part like the BFO Q2CSRO.

2. Installation Complexity: Installing a new cylinder head requires specialized tools and knowledge, which may require the assistance of a professional mechanic.

3. Potential for Compatibility Issues: Some aftermarket cylinder heads may not be fully compatible with all Honda ATV models, so it's essential to ensure that the part is designed for your specific make and model.

A BFO Q2CSRO 70cc cylinder head can offer significant performance improvements for Honda ATV models with a 72cm3 engine. However, the high cost, installation complexity, and potential compatibility issues are important considerations.

If you're looking to maximize performance and are willing to invest in a high-quality aftermarket part, the BFO Q2CSRO cylinder head could be an excellent choice. However, if you're on a tight budget or prefer a more straightforward repair, it may be worth considering other options, such as a rebuild kit or a used OEM cylinder head.

Before making a decision, be sure to do your research and ensure that the BFO Q2CSRO cylinder head is compatible with your specific Honda ATV model. You may also want to consider the cost of the part, the complexity of the installation process, and your personal riding goals to determine if this is the right choice for you. It may be worth consulting with a professional mechanic to get their expert opinion before making a purchase.

Details:

G guaranteed Fitment. Manufacturer. This head will only work with FLAT TOP pistons. Quick, Simple.

For Honda S65. For Honda ATC70 1978-1985. This head will only work with DOMED pistons. Fast Shipping.

Always the correct part. Compare the Combustion Chamber Size shown below, to your current head. For Honda TRX70. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small.

part #: q2csro prices

• $19.99-$58.42

specifications cylindermotorcycleiz:

• for models: Ct70, Trx70, Crf70, Xr70
• for makes: Honda
• brand: Bfo
• mpn: Q2csro
• bundle listing: Yes
• california prop 65 warning: California Prop 65 Warning
• compatible make: For Honda
• compatible model: Atc70 Crf70 Ct70 C70 Trx70 Xr70 S65
• engine: 50cc, 70cc
• engine type: 4-stroke
• exhaust valve outside diameter: 20mm
• fit 1: For Honda 50cc Large Bore
• fit 2: For Honda 70cc Small Bore Cylinder
• fit for: For Domed 50cc Or Flat Top 70cc
• including: Cylinder Head
• inner bore size: 39mm
• intake valve outside diameter: 23mm
• items included: Gasket
• length: 66mm
• machine type: Off-road Motorcycle, Street Motorcycle
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part.
• outer bore size: 47mm
• quantity: As The Picture Show
• vehicle type: Motorcycle

offer cylindermotorcycleiz:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• started: November 5, 2025
• sold: 0

returns cylindermotorcycleiz:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

shipping cylindermotorcycleiz:

• type: Fixed
• carrier: FedEx
• transit: 3-9 Days
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• class: Standard

seller cylindermotorcycleiz:

• city: Elk Grove Village, Illinois
• rating: 99.4%
• # reviews: 634

payments cylindermotorcycleiz:

• other
• wallet: Paypal
• credit card: Diners-club

general cylindermotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

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