RK - BL420MRU-120 - 420 MRU - Chain - 120 Links - Black
For riders who put serious hours on their machine, the RK BL420MRU-120 is a 420 chain built with Japanese steel for consistent power transfer and long service life. MRU chains utilize RK's proprietary Ultra Thin Seal U-Rings which allows the thickness of the seal to be less than 50% of the most common O-ring seal. MRU features 4 times longer chain life and will require less chain adjustments than comparable non-sealed 420 chains, ensuring strong pin retention. Lightweight, low friction, sealed, U-Ring 420 pitch chain perfect for Honda® Monkey and Honda® Grom, and chain Size: 420 give this chain the internal toughness to resist constant flex and impact loads. Chain Type: 420 MRU. The u-ring design adds protection at every link interface, significantly extending service intervals. Whether running a practice bike, race machine, or trail bike, the BL420MRU-120 delivers consistent performance. Sold individually.
Features
- MRU chains utilize RK's proprietary Ultra Thin Seal U-Rings which allows the thickness of the seal to be less than 50% of the most common O-ring seal
- MRU features 4 times longer chain life and will require less chain adjustments than comparable non-sealed 420 chains
- Lightweight, low friction, sealed, U-Ring 420 pitch chain perfect for Honda® Monkey and Honda® Grom
Specs
- Chain Size: 420
- Chain Type: 420 MRU
- Number of Links: 120
- Tensile Strength: 20.2 kN
- Color/Finish: Gold
- Material: Steel
- Riding Style: Adventure Touring / Dual-Sport
- Riding Style: Street
- Units: Each
- Color/Finish: Black
- Master Link Connector Type: Clip
- Maximum Engine Displacement (Offroad): 150 cc
- Weight: 0,79 kg/100 Links
- Product Name: Drive Chain
- Seal Type: U-Ring
- Type: Chain
- Maximum Engine Displacement (Street): 150 cc
- Model: MRU Series
- Riding Style: Off-Road
- Tensile Strength: 4540 lb
Frequently Asked Questions - RK - BL420MRU-120 - 420 MRU - Chain - 120 Links - Black
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
