Product Description
The Rolon HPOR 356 kit is a direct bolt-on upgrade designed to handle the torque and refinement of the modern 350cc J-Series engine. Unlike the basic stock chain, the HPOR series features a sealed O-Ring chain, which uses internal rubber seals to lock in lubrication. This results in a significantly longer lifespan—typically 20,000 to 25,000 km—and reduced “chain slap” noise.
The kit includes a precision-machined 15-tooth front sprocket and a 42-tooth rear sprocket made from induction-hardened high-carbon steel. These sprockets are zinc-coated to prevent rust and ensure smooth power transfer. For riders who engage in long-distance touring or daily heavy-traffic commuting, the HPOR 356 offers superior reliability, requiring fewer adjustments than a traditional chain.
Key Features:
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O-Ring Sealed Technology: Internal grease is sealed within the links, protecting against dust, water, and premature wear.
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Extended Service Life: Lasts up to 50% longer than non-sealed OEM chains with proper maintenance.
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Precision Gearing: Maintains factory ratios (15T Front / 42T Rear) for a balanced mix of city acceleration and highway cruising.
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Induction-Hardened Teeth: Carbon steel sprockets undergo thermal treatment for maximum resistance to tooth wear and hooking.
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Anti-Corrosion Coating: Zinc-plated finish on the rear sprocket and high-quality surface treatment on the chain resist rust.
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Enhanced Strength: Features the new Rolon safety master link for added security under high load.
Technical Specifications:
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Part Number: HPOR 356
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Chain Type: 520 Pitch, 104 Links (Sealed O-Ring)
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Front Sprocket: 15 Teeth (Heat-Treated Steel)
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Rear Sprocket: 42 Teeth (6-Hole Hub Fitment)
Vehicle Compatibility:
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Royal Enfield Classic 350 Reborn (J-Series, 2021–Present)
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Royal Enfield Meteor 350 (All Variants)
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Royal Enfield Hunter 350 (Retro & Metro)
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Royal Enfield Bullet 350 (New J-Series Model, 2023–Present)
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Note: This kit is NOT compatible with older UCE models (Classic 350/500 BS3/BS4) or the Himalayan 411.










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