Original Yamaha NMAX 125 Clutch Primary Sliding Sheave (BBP-E7620-00) | 2021-2024

Sale price£27.50 GBP

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Designed with precision engineering, this offers unmatched performance and durability.


A worn sliding sheave can make the whole CVT system feel unstable. This original Yamaha NMAX 125 clutch primary sliding sheave (BBP-E7620-00) fixes that by keeping everything moving in a straight, controlled way. It holds the correct position under load and prevents unwanted movement inside the variator. That keeps the system balanced. The result is more consistent acceleration and a smoother overall ride.

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

Product Compatibility

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Part Number
  • BBP-E7620-00
Alternative Part Number

_

  • B65-E7620-00
Model
  • GPD125-A NMAX
Year
  • 2021
  • 2022
  • 2023
  • 2024
MFG
  • Yamaha

Product Overview

This high-quality Original Clutch Primary Sliding Sheave is designed to meet or exceed factory performance standards and is suitable for Yamaha NMAX 125 (2021-2024) models.

The clutch primary sliding sheave forms the movable half of the drive variator pulley, sliding along the drive shaft in response to centrifugal force from the roller weights to narrow or widen the pulley groove and continuously vary the drive belt position and transmission ratio. A worn, warped, or damaged sliding sheave disrupts smooth axial travel along the shaft, causing belt tracking errors, uneven ratio changes, and sluggish or inconsistent acceleration. This original replacement restores precise sheave movement and correct pulley geometry, ensuring smooth, progressive CVT operation and accurate ratio transitions across the full speed range of your Yamaha NMAX 125.

• Brand New Original Clutch Primary Sliding Sheave
• Part Number: BBP-E7620-00
• Alt Part Number: B65-E7620-00
• Factory-specification replacement for Yamaha NMAX 125 (2021-2024)
• Ensures smooth sheave travel and accurate CVT ratio transitions
• Restores correct pulley geometry and progressive belt engagement
• Direct fit, no modification required
• Ideal replacement during CVT variator service or drive belt replacement
• 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 a worn, warped, or damaged primary sliding sheave
• Replacing the Clutch Primary Sliding Sheave during CVT variator service or drive belt replacement
• Mechanics and workshops carrying out Yamaha NMAX 125 CVT variator servicing
• Riders wanting to restore smooth and progressive CVT performance to their Yamaha NMAX 125
• Those seeking a guaranteed original replacement for their Yamaha NMAX 125

Complete Part Guide

Controlled belt movement is essential for efficient CVT performance. The original Yamaha NMAX125 Clutch Primary Sliding Sheave (BBP-E7620-00) for 2021-2024 models regulates this movement by working in sync with the variator and fixed sheave. It ensures smooth gear transition and stable acceleration under varying load conditions. Designed to Yamaha's original specifications, it provides accurate alignment, controlled travel, and consistent performance. Available now from Part Hive with same-day UK dispatch before 1 PM from Part Hive's London hub.

We see riders try small fixes, new rollers, light cleaning, but the hesitation stays. On the NMAX-125, when acceleration feels off, we check the sliding sheave properly. Wear in the guides causes uneven movement under load. In London stop-start riding, that becomes obvious fast. We remove the variator, inspect contact surfaces and clearances, then clean and reset everything. Once confirmed, we install the original Yamaha clutch primary sliding sheave unit, restoring proper movement and bringing the transmission back to a controlled, predictable feel.

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