Rolon M-Ring Chain & Sprocket Kit – KIT NMR F311 – Yamaha R15 V3 / R15 V4 / R15 M 155cc (428, 14T–48T, 128L)

If your R15’s chain has started rattling, jerking or rusting, it’s time to retire the tired stock set and move to a proper performance kit. The Rolon KIT NMR F311 is a factory-spec M-Ring sealed chain & sprocket kit built specifically for Yamaha R15 V3, R15 V4 and R15 M 155cc. Using a 428 pitch, 128-link sealed chain with a 14T front and 48T rear sprocket, it matches OEM gearing while dramatically improving smoothness, service life and reliability.

Rolon is one of India’s leading OE suppliers, and this kit is listed in the official Rolon catalog and by multiple premium retailers for the R15 platform, with the same 14/48/128 specification. The M-Ring sealed design keeps lubricant in and dirt out, cutting chain noise and stretch on high-revving 155cc VVA engines.

Whether you commute daily, hit weekend twisties or tour with luggage, this kit delivers smoother power delivery, fewer adjustments and lower long-term running costs compared to cheap local chain sets.

When you buy from Under The Hood (Varanasi), you get 100% genuine Rolon stock, expert packing, WhatsApp support for fitment, and the option to get this kit installed at our studio along with chain lube and inspection. No duplicates, no confusion—just a correctly geared, super-smooth R15.

Key Features

• Exact R15 gearing – 428 pitch chain, 14T front / 48T rear / 128 links, matches factory ratios for R15 V3/V4/M.

• M-Ring sealed chain – Rolon M-Ring technology reduces friction and retains lube longer than standard open chains, ideal for high-rev 155cc engines.

• Carbon-steel sprockets – Induction-hardened teeth for excellent wear resistance and long service life.

• Anti-rust surface treatment – Zinc / anti-corrosion coating on sprockets helps resist rust in rain, traffic and parking outdoors.

• Smoother, quieter drivetrain – Precision-machined teeth and sealed bush design cut chain slap and vibration, improving NVH and ride comfort.

• Designed for 125–250cc performance bikes – Rated by Rolon for the displacement range that includes the R15 platform.

• OE-spec fitment – 6-hole rear sprocket pattern and OE spline/tap front sprocket for direct bolt-on replacement, no modification required.

• Lower maintenance vs. cheap local kits – Longer lubrication intervals, reduced stretch and fewer chain adjustments when maintained correctly.

• Backed by Under The Hood – Genuine Rolon stock from authorised channels, careful packaging, and real-world advice from R15 and performance-bike specialists.

Compatibility Table

*If your bike runs custom sprocket sizes or a non-OE wheel/hub, please measure and confirm before ordering.

Variants

This listing is for:

• KIT NMR F311 – Standard Black M-Ring Chain Kit

  • Best for daily riders and tourers who want OE gearing, long life and low maintenance.

If you want a visual upgrade with brass/gold plates, we also stock Rolon brass chain kits (NaRF / NaRC series) for R15 – ideal for riders focused on looks and stunt / show bikes (listed separately on underthehood.co.in).

What’s in the Box

• 1 × Rolon 428 M-Ring sealed chain, 128 links (R428NMR)

• 1 × Front sprocket – 14T, OE spline + tap mounting (part ref: S 01 071)

• 1 × Rear sprocket – 48T, 6-hole PCD pattern (part ref: S 01 968)

• Basic manufacturer leaflet / chain maintenance instructions

(Any accessories like Under The Hood keychains shown in photos are for representation and may be sold separately.)

Installation & Maintenance Notes

• Direct fit on stock R15 V3 / V4 / M swingarm, hub and sprocket carrier – no machining or spacers required.

• Always replace chain and both sprockets together to avoid premature wear.

• After installation, set chain slack as per Yamaha manual (typically around 25–35 mm at mid-span – check your owner’s manual).

• First re-torque after ~100 km, then at every service.

• Clean the chain with kerosene or dedicated chain cleaner and a soft brush; avoid petrol or harsh solvents.

• Lubricate every 500–700 km or sooner in rain/dirty conditions using a good quality chain lube; avoid running the chain dry.

• Inspect sprocket teeth for hooking and the chain for tight spots at every service; replace as a set when worn.

FAQs 

Q1. Will KIT NMR F311 fit my Yamaha R15 V3?
Yes. This kit is designed specifically around the R15 V3 155cc with 428 pitch chain, 14T front and 48T rear sprockets, matching the OE gearing and hub pattern.

Q2. Does it also fit R15 V4 and R15 M?
Yes. Multiple catalog and dealer listings sell KIT NMR F311 as a Rolon chain kit for R15 V3/V4/M 150 with the same 14/48/128 specification. As long as your bike uses the stock sprocket sizes and hub, it is a direct fit.

Q3. Is this better than the stock Yamaha chain set?
Functionally it matches OEM gearing but uses Rolon’s M-Ring sealed chain and hardened sprockets, giving better lubrication retention, reduced stretch, smoother running and typically longer life than many stock or local “open” chains when maintained correctly.

Q4. Will changing to this kit affect my mileage or top speed?
No. Because the tooth count and chain pitch are the same as stock, there is no change in final drive ratio, so mileage and top speed remain similar. Reduced friction from the sealed chain can even make the bike feel slightly smoother.

Q5. Is this a genuine Rolon product or a local duplicate?
Under The Hood sources all Rolon kits directly from authorised distributors. The kit comes in original Rolon packaging with printed part number NMR F311, holograms and manufacturer details, so you’re protected against fakes.

Q6. Do I need any extra parts or modifications?
No additional parts are required on stock bikes. We recommend installing with fresh chain adjuster grease and checking the condition of chain sliders and sprocket-carrier dampers; replace if badly worn for best results.