RK Excel 420 MRU Drive Chain BL420MRU-120 - Black BL420MRU 120
RK Excel 420 MRU Drive Chain BL420MRU-120 - Black BL420MRU 120
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RK Excel BL420MRU-120 420 MRU Drive Chain
MRU features RK’s proprietary Ultra Thin Seal, U-Rings, where the thickness of the seal is less than 50% of the most common O-ring seal. This allows RK to design a Sealed Chain with the weight of a Non-Sealed Chain. MRU will feature 4 times longer chain life than comparable non-sealed 420 chains and will require less chain adjustments compared to non-sealed 420 chains.
Features & Benefits
- Tensile Strength: 4,540 lbs
- Max CC Rating: 150cc Street, 150cc Off-road
- Max Horsepower: 25 HP
- Weight: 1.74 lbs
- Max Chain Width: 17.1mm
- Master Link Included: Clip type
Specifications
| Model | 420 MRU Drive Chain |
| Product Type | Chains |
| Color | Black |
| Vehicle Type | Offroad, Street |
| Weight | 2.09 lb |
| Dimensions | 9.65 x 3.34 x 0.74 in |
| Country of Origin | Japan |
| Brand | RK Excel |
| Manufacturer Part Number | BL420MRU-120 |
| UPC | 681319500063 |
Frequently Asked Questions
What is this chain intended for?
This RK Excel 420 MRU Drive Chain chain is intended for off-road motorcycle and street motorcycle use. Confirm compatibility for your specific machine before ordering.
What color is this chain?
This listing is the Black variant of the 420 MRU Drive Chain from RK Excel.
What stands out about this chain?
Highlights include tensile Strength: 4,540 lbs. Review the full feature list and specifications on this page for complete details.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.
