1. Motorcycle Cylinder Heads & Valve Covers For Sale
  2. sku: 12105231744372771
  3. BFO 1RNDWL

BFO 1RNDWL Cylinder Head Kit 70CC 50CC

fits model: Crf70, Xr70, Ct70, C70, Trx70, Xr70r. make: Honda.

1rndwl Bfo Cylinder Head Complete Kit For Honda Crf70 Xr70 Ct70 C70 Trx70 Xr70r 70cc 50cc

( Brand: Bfo ), ( Manufacturer Part Number: 1RNDWL ), ( 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 Cylinder Head Complete Kit Honda 70cc 50cc fits CRF70 XR70 CT70 C70 TRX70 XR70R

The BFO 1RNDL Cylinder Head Kit is an excellent replacement option for Honda CRF70, XR70, CT70, C70, TRX70, and XR70R models with a 70cc or 50cc engine. This cylinder head kit is designed to provide superior performance and reliability, making it an ideal choice for riders who demand the best from their off-road machines.

The BFO cylinder head kit comes with a high-performance cylinder head that features a large intake port and a redesigned combustion chamber. The large intake port allows for a greater volume of air to be drawn into the engine, resulting in increased power and torque. The redesigned combustion chamber, on the other hand, provides better compression and more efficient fuel combustion, leading to improved engine efficiency and reduced emissions.

The kit also includes a new set of high-performance pistons that are designed to work in harmony with the new cylinder head. These pistons are made from a high-strength material and feature a unique design that ensures optimal engine performance. They are also precision-machined to ensure a perfect fit and proper clearances.

Additionally, the BFO cylinder head kit comes with new cylinder head gaskets, camshafts, valves, and valve springs. These components are made from high-quality materials and are designed to provide long-lasting performance and reliability. The camshafts, in particular, are designed to provide optimal cam timing and valve lift, resulting in improved engine power and torque.

The valves and valve springs in the kit are designed to provide better engine response and improved throttle control. They are also made from high-quality materials that ensure long-lasting performance and reliability. The cylinder head gaskets, on the other hand, are designed to provide a perfect seal between the cylinder head and the engine block, preventing any gas or coolant leaks.

Installing the BFO cylinder head kit is a straightforward process and can be done using common hand tools. The kit comes with detailed instructions and all necessary hardware to make the installation process as easy as possible. Plus, the BFO team is always available to answer any questions or provide technical support.

In summary, the BFO 1RNDL Cylinder Head Kit is an excellent upgrade for Honda CRF70, XR70, CT70, C70, TRX70, and XR70R models with a 70cc or 50cc engine. With its high-performance cylinder head, pistons, gaskets, camshafts, valves, and valve springs, this kit provides improved engine power, torque, and efficiency, making it an ideal choice for riders who demand the best from their off-road machines.

Buying a BFO 1RN DWL cylinder head kit for Honda CRF70, XR70, CT70, C70, TRX70, XR70r, 70cc, and 50cc motorcycles comes with several pros and cons. Here's a detailed analysis:

Pros:

1. Performance Enhancement: A new cylinder head can improve the engine's performance by increasing the compression ratio, improving the flow of gases in and out of the cylinders, and enhancing the power output.

2. Durability: A new cylinder head can last longer than the original one, especially if the old one has worn-out valves, damaged seats, or other issues.

3. Better Fuel Efficiency: A more efficient engine can lead to better fuel economy, allowing riders to save money on gas.

4. Improved Cooling: The BFO 1RN DWL cylinder head kit comes with a new cooling system, which can help keep the engine running cooler and more efficiently.

5. OEM Quality: The BFO 1RN DWL cylinder head kit is an OEM (original equipment manufacturer) replacement, ensuring that it meets the same quality standards as the original part.

Cons:

1. Cost: Replacing a cylinder head can be an expensive repair, especially when compared to other maintenance tasks like oil changes or tire rotations.

2. Installation Complexity: Installing a new cylinder head requires a fair amount of mechanical knowledge and experience, as well as specialized tools.

3. Time Consuming: The installation process can take several hours, depending on the rider's experience level and the availability of specialized tools.

4. Potential for Damage: During the installation process, there is a risk of damaging other engine components or causing other issues if the installation is not done correctly.

Conclusion:

The decision to buy a BFO 1RN DWL cylinder head kit for a Honda CRF70, XR70, CT70, C70, TRX70, XR70r, 70cc, or 50cc motorcycle depends on several factors, including the bike's condition, the rider's mechanical skills, and their budget. If the engine is showing signs of wear or poor performance, a new cylinder head may be worth the investment. However, if the bike is in good condition and the rider is not comfortable with the installation process, it may be better to leave the cylinder head alone.

Recommendation:

If you do decide to purchase a BFO 1RN DWL cylinder head kit, make sure to read the installation instructions carefully, gather all the necessary tools, and consider seeking the help of a professional mechanic if you are not confident in your abilities. Additionally, consider purchasing the kit from a reputable dealer to ensure that you are getting a high-quality product.

Details:

Factory Warranty. This head will only work with FLAT TOP pistons. Cylinder Head for Honda CRF70 XR70 CT70 C70 ATC70 TRX70 S65 50cc Large Bore / 70cc Small. For Honda ATC70 1978-1985.

For Honda S65. For Honda TRX70. This head will only work with DOMED pistons. offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer.

Compare the Combustion Chamber Size shown below, to your current head. Fast Shipping. Best Costumer Service. >>you might also like.

It begins from the date purchased.

specifications cylindermotorcycleiz:

  • for models: Crf70, Xr70, Ct70, C70, Trx70, Xr70r
  • for makes: Honda
  • brand: Bfo
  • mpn: 1rndwl
  • 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

general cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

  • rating: 99.1%
  • city: Houston, Texas
  • # reviews: 18684

payments cylindermotorcycleiz:

  • credit card: Visa
  • other
  • wallet: Google-pay

offer cylindermotorcycleiz:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • best offers: True
  • started: July 18, 2025
  • quantity: 5

shipping cylindermotorcycleiz:

  • service: FedEx Ground or FedEx Home Delivery
  • cost: $0.00
  • type: Fixed
  • carrier: FedEx
  • transit: 5-11 Days
  • class: Standard
for models: crf70, xr70, ct70, c70, trx70, xr70r, for makes: honda, 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,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > cylinder heads, sku: 12105231744372771,
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