Rolon Standard O-Ring Chain & Sprocket Kit for Royal Enfield Himalayan 450

The Rolon Standard O-Ring Chain & Sprocket Kit is the direct OEM-spec drivetrain replacement engineered specifically for Royal Enfield’s Himalayan 452cc liquid-cooled Sherpa engine. Manufactured by L.G. Balakrishnan & Bros (Rolon), this kit matches original equipment tolerances to handle the 40 Nm torque delivery, long-travel suspension dynamics, and demanding off-road touring conditions of the Himalayan 450. Built with a solid-bush sealed O-ring chain and precision heat-treated sprockets, it delivers quiet running, dependable tensile strength, and factory gearing accuracy.

Key Performance Features

• Factory-Grade O-Ring Sealed Chain: Employs a heavy-duty 520-pitch sealed chain with solid bushes and elastomeric O-rings to keep factory lubricant sealed inside the pin-bushing junction while locking out sand, mud, and water slurry.

• Pre-Stressed & Shot-Peened Construction: Link plates and rollers undergo shot-peening for enhanced surface fatigue strength and high shock-load absorption, minimizing initial chain stretch.

• Cushioned Countershaft Sprocket: The 15T front drive sprocket is CNC-machined with high-precision involute splines and bonded rubber cushioning to dampen harsh engine pulses and eliminate low-RPM drivetrain chatter.

• Induction-Hardened Rear Sprocket: Manufactured from premium carbon steel with induction-hardened 47T teeth designed to resist tooth-hooking and cupping under heavy luggage and steep terrain.

• Direct Bolt-On Factory Gearing: Matches the Himalayan 450’s exact factory setup—15T front, 47T rear, and 116 links—ensuring plug-and-play fitment with zero chain cutting or swingarm adjuster misalignment.