Original Yamaha NMAX 125 Cam Chain Guide Stopper (B65-E2231-00) | 2021-2024

Sale price£13.50 GBP

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Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.


You might not see it working, but you'll notice when it's not right. This original Yamaha NMAX 125 cam chain guide stopper (B65-E2231-00) keeps the chain aligned as the engine runs, helping everything stay smooth and consistent. It supports proper timing under load. That's what keeps the bike feeling right.

Vetted by our Lead Engineer. Leveraging 30 years of mechanical pedigree, every part is inspected for material density and exact tolerances to ensure a 'Right-First-Time' fit.

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Protect your shift — Back on the road tomorrow.

Guaranteed fitment for Yamaha GPD125-A NMAX or free returns.

Product Compatibility

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Part Number
  • B65-E2231-00
Alternative Part Number

_

Model
  • GPD125-A NMAX
Year
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Yamaha

Product Overview

This high-quality Original Cam Chain Guide Stopper is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2021-2024) models.

The Cam Chain Guide Stopper is a precision-formed engine component that retains and positions the cam chain guide within the cylinder head, keeping the guide seated correctly against the chain path to maintain proper cam chain routing and tension. When the stopper loosens, wears, or is disturbed during servicing without replacement, the guide can shift out of position, leading to chain noise, irregular valve timing, accelerated chain and guide wear, and potential internal engine damage. This original replacement is manufactured to original factory specifications, restoring reliable performance to your Yamaha motorbike.

• Brand New Original Cam Chain Guide Stopper
• Part Number: B65-E2231-00
• Original replacement for Yamaha NMAX 125 (2021-2024)
• Keeps the cam chain guide seated and correctly positioned in the cylinder head
• Helps maintain proper cam chain routing, tension, and valve timing
• Direct fit, no modification required
• Recommended for replacement during cam chain service or engine top-end overhaul
• London: Express same-day delivery (2-3 hours)
• Rest of UK: Same-day dispatch on orders before 1 PM (3-4 business days delivery).
• Up to 75% off for B2B Trade Accounts. Independent UK garages, apply now.

• Yamaha NMAX 125 owners with cam chain noise, chain slack, or a displaced cam chain guide
• Replacing the Cam Chain Guide Stopper during cam chain service or top-end engine overhaul
• Mechanics and workshops carrying out Yamaha cam chain servicing
• Riders wanting to restore the original cam chain routing and valve timing stability of their Yamaha motorbikes
• Anyone looking for a guaranteed original replacement for their Yamaha motorbikes

Complete Part Guide

Over time, the cam chain can start to loosen slightly as parts wear. The original Yamaha NMAX125 Cam Chain Guide Stopper (B65-E2231-00) for 2021-2024 models keeps everything tight and controlled, preventing that gradual slack from affecting engine timing. It helps maintain smooth and consistent performance over the long run. Manufactured to original Yamaha specification for precise fitment and durability. Available now from Part Hive, enjoy same-day UK dispatch on all orders before 1 PM from our London hub.

We’ve had Yamaha NMAX-125s come in where the rider just says, “It doesn’t sound right anymore.” Nothing loud, just slightly off. They’ve usually been riding it like that for a while. Once we open it up, the guide’s, worn and the chain’s got more play than it should. We replace it with the original Yamaha cam chain guide stopper, and it sorts it straight away, engine tone goes back to normal, smooth and even.

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