Rolon Brass Chain & Sprocket Kit for Bajaj Dominar 250 — Kit HPORC 391

The Dominar 250 brought the same commanding street presence as its 400cc sibling into a lighter, more accessible package — and its drivetrain deserves the same upgrade path. The Rolon HPORC 391 is a purpose-built brass kit for the Dominar 250 specifically, with its own tooth count and chain length engineered around this bike, not borrowed from the 400.

Brass-plated inner and outer chain link plates deliver genuine corrosion resistance along with a premium gold-toned finish that suits the Dominar's aggressive styling. The sprockets are heat-treated carbon steel with induction-hardened teeth, precision-machined to reduce noise and vibration for a quieter, smoother ride, and pass 18 production stages and 15 individual quality checks before shipping — engineered for real durability, not just a shinier replacement.

Important fitment note: the Dominar 250 uses a different tooth count from the Dominar 400 (14T/46T vs 15T/45T) — these kits are NOT interchangeable despite sharing the Dominar name. Always confirm which engine size your customer's bike has before selling either kit.

In the box: front sprocket, rear sprocket, and brass-plated chain.

Keeping it running well: lubricate every 500km for seal-ring chains (1000km for standard), clean every 2500–3000km with a nylon brush — never a steel wire brush or high-pressure jet directly on a seal-ring chain — and maintain at least 1 inch of chain slack. Replace chain dampers at the same time as the kit. Professional installation recommended.

Key details

• Brand: Rolon (manufactured by LGB — Indian chain manufacturer since 1937)
• Fits: Bajaj Dominar 250 ONLY — not compatible with Dominar 400 (different tooth count/kit)
• Kit code: HPORC 391 (standard non-brass version: HPOR 333, same spec)
• Front sprocket: 14 teeth (model S 02 552)
• Rear sprocket: 46 teeth (model S 02 677), 6-hole
• Chain: 120 links, brass-plated inner and outer link plates (R520HPORC-120-2)
• Quality control: 18 production stages, 15 individual QC checks per sprocket
• Fitment: as per OE specification