HARLEY DAVIDSON INDIAN MOTORCYCLE POWERSPORTS HOT ROD MUSCLE CARS TRUCKS FREE SHIPPING IN THE LOWER 48 ON ORDERS OVER $200 ESTABLISHED IN 1988 IN VANCOUVER BC CANADA THE SPEED SHOP USA CANADIAN CUSTOMERS CLICK HERE FOR WWW.THESPEEDSHOPCANADA.COM
HARLEY DAVIDSON INDIAN MOTORCYCLE POWERSPORTS HOT ROD MUSCLE CARS TRUCKS FREE SHIPPING IN THE LOWER 48 ON ORDERS OVER $200 ESTABLISHED IN 1988 IN VANCOUVER BC CANADA THE SPEED SHOP USA CANADIAN CUSTOMERS CLICK HERE FOR WWW.THESPEEDSHOPCANADA.COM
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RK EXCEL BL420MRU-120 MRU Drive Chain, Black, 420 x 120

2 sold in last 8 hours
$196.95
In stock
RK EXCEL
691-1801BK
In stock
Chains
MRU features RK’s proprietary Ultra Thin Seal, U-Rings, where the thickness of the seal is less...
$196.95

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RK EXCEL BL420MRU-120 MRU Drive Chain, Black, 420 x 120
$196.95 In stock
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Product Product subtotal Quantity Price Product subtotal
RK EXCEL BL420MRU-120 MRU Drive Chain, Black, 420 x 120
RK EXCEL BL420MRU-120 MRU Drive Chain, Black, 420 x 120
$196.95/ea
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$196.95/ea $0.00

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.

The RK EXCEL BL420MRU-120 MRU Drive Chain combines a proprietary Ultra Thin Seal with U-Rings, designed with a seal thickness of less than 50% of the most common O-ring seal. This construction allows RK EXCEL to offer the weight characteristics of a non-sealed chain while providing the benefits of a sealed chain design.

According to RK EXCEL, the MRU chain delivers four times longer chain life than comparable non-sealed 420 chains and requires fewer chain adjustments compared with non-sealed 420 chains. The chain is rated for applications up to 150cc on both street and off-road use, with a maximum horsepower rating of 25 HP.

The RK EXCEL BL420MRU-120 features a tensile strength of 4,540 pounds, a maximum chain width of 17.1 mm, and a weight of 1.74 pounds. A clip-type master link is included.

Features:

  • Ultra Thin Seal: Uses RK EXCEL's proprietary U-Ring seal with a thickness of less than 50% of the most common O-ring seal.
  • Chain Life: Designed to provide four times longer chain life than comparable non-sealed 420 chains, according to RK EXCEL.
  • Chain Adjustments: Requires fewer chain adjustments compared with non-sealed 420 chains, according to RK EXCEL.
  • Tensile Strength: 4,540 lbs.
  • Application Rating: Maximum 150cc rating for street and off-road use.
  • Maximum Horsepower: 25 HP.
  • Maximum Chain Width: 17.1 mm.
  • Master Link: Clip-type master link included.

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RETURN POLICY 2026 ALL DISCOUNTED AND SALE ITEMS ARE A FINAL SALE !!! We have a 14-day exchange policy on regular priced items only , ( discounted or sale items are not eligible for return ) , which means you have 14 days after receiving your item to request a exchange. WE DO NOT REFUND we exchange only ... PROCESSED ORDERS THAT ARE REQUESTING A CANCELLATION ARE SUBJECT TO A 20% RESTOCK FEE To be eligible for a exchange, your item must be in the same condition that you received it, unopened or unused, with tags and in its original packaging. You’ll also need the receipt or proof of purchase.  To start a exchange, you can contact us at usaspeedguys@gmail.com. Please note that exchanges will need to be sent to the following address and require an authorization first : THE SPEED SHOP USA  ATT RETURNS  PO BOX 1254 PEACHLAND BC CANADA  V0H1X0 CANADA POST REGULAR SERVICE If your exchange is accepted, we’ll send you a return authorization number, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. You can always contact us for any exchange question at usaspeedguys@gmail.com. SHIPPING ON RETURNS IS AT YOUR EXPENSE WE DO NOT PAY FOR RETURN SHIPPING Damages and issues Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. Exceptions / non-returnable items Certain types of items cannot be returned LIKE custom order products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. There is NO RETURNS on lighting or electrical components at all PERIOD . Please get in touch if you have questions or concerns about your specific item.  Unfortunately, WE DO NOT accept returns on sale items, DISCOUNTED ITEMS or gift cards. Exchanges The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. WE DO NOT REFUND WE ONLY EXCHANGE  European Union 14 day cooling off period Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days . As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Exchanges We will notify you once we’ve received and inspected your return and let you know if the exchange was approved or not. If approved, you will have 30 days to complete your exchange.  If more than 15 business days have passed since we’ve approved your return, please contact us at usaspeedguys@gmail.com
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