As low as $40.01/mo with or . (Pay in 4 interest-free payments)
RK 420 MRU Chain (120 Links) – Black Upgrade your drive system with the RK 420 MRU Chain from RK, engineered for smooth, durable performance. This sealed 420 pitch chain features RK’s Ultra Thin Seal U-Rings to help reduce friction and extend service life—ideal for riders who want reliable power transfer with fewer adjustments. Key Features Ultra Thin Seal U-Rings use a seal thickness < 50% of common O-ring seals for efficient sealing. Longer chain life: MRU chains deliver up to 4x longer chain life versus comparable non-sealed 420 chains. Less maintenance: designed to require fewer chain adjustments . Lightweight & low friction with sealed protection for consistent drive feel. Perfect for Honda® Monkey and Honda® Grom applications. Specifications Chain Size: 420 Chain Type: 420 MRU (sealed) Number of Links: 120 Seal Type: U-Ring Color/Finish: Black Material: Steel Tensile Strength: 20.2 kN (4540 lb) Master Link Connector Type: Clip Weight: 0.79 kg/100 links (2.25 lbs total) Fits: Street / Off-Road (up to 150 cc) Units: Each Product Name: Drive Chain Dimensions: 9.5" x 3.5" x 0.75"
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
or 
. (Pay in 4 interest-free payments)
