

Original Honda PCX 125 Front Brake Disc (45351-K1Z-N21) | 2021-2022
Running a Workshop or Delivery Fleet? Unlock Up to 75% Trade Discount.
Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.
The Front Brake Disc (45351-K1Z-N21) is the original replacement component for the Honda PCX 125 (2021–2022). Built for precise fitment, it restores the scooter’s stopping power when the original rotor is warped, thinned, or scuffed. Once installed, it locks securely into the hub, eliminating vibration gaps and shielding the braking system from erratic hydraulic pressure and friction-related corrosion.
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.
Guaranteed fitment for Honda PCX125 or free returns.
Delivery Information
Orders placed before 12:00pm (UK time) are usually dispatched the same working day. Orders placed after this time will be dispatched on the next working day.
In the rare event of a stock shortage, we will notify you promptly and issue a full refund within one working day if the item cannot be supplied.
Once dispatched, tracking information will be provided via email, provided valid contact details are supplied at checkout.
While we aim to meet all estimated delivery times, delays may occasionally occur due to circumstances beyond our control, such as courier issues, weather conditions, or operational disruptions. Should this happen, we will keep you informed.
Delivery Areas
We currently deliver to:
• United Kingdom
• Republic of Ireland
• Isle of Man
• Jersey & Channel Islands
• Most European destinations
If you are unsure whether we deliver to your location, please contact us prior to placing your order.
Verified UK Entity #15361806 operating from our NW10 London Logistics Hub. Skip the wait with express workshop pickup.

Product Compatibility
Compatibility charts are for reference only. Please compare part numbers and manufacturers' details. Contact us before ordering if unsure to avoid delays or refund charges.
Trademark Disclaimer: All trademarks, brand names, and logos remain the property of their respective owners and are used solely for identification and compatibility purposes. We are an independent retailer and are not affiliated with any authorized dealer or distributor.
- 45351-K1Z-N21
_
- PCX125
- 2021
- 2022
- Honda
- 125
- A
- PCX125
- NEW
Product Overview
This high-quality Original Front Brake Disc meets or exceeds original performance standards and is suitable for Honda PCX125 2021-2022 models.
The Front Brake Disc provides the friction surface that the brake pads clamp against to slow and stop the scooter. Over time, the disc can wear thin, warp, or become scored, causing reduced braking efficiency, vibration through the lever, and longer stopping distances. This original replacement is manufactured to original factory specifications, ensuring correct fitment and reliable and consistent front braking performance.
• Brand New Original Front Brake Disc
• Part Number: 45351-K1Z-N21
• Original replacement for Honda PCX125 (2021-2022)
• Provides the friction surface for consistent and reliable front braking
• Prevents reduced braking efficiency caused by a worn, warped or scored disc
• Manufactured to original factory thickness and dimensions
• Drop-in replacement, no modification required
• Essential for brake system servicing and safety maintenance
• 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.
• Honda PCX125 owners experiencing reduced front braking performance, vibration or disc wear
• Replacing a worn, warped, or scored Front Brake Disc
• Mechanics and workshops carrying out Honda PCX125 brake system servicing
• Riders wanting to restore reliable and consistent front braking performance
• Anyone sourcing a guaranteed original replacement for the Honda PCX125
Complete Part Guide
The front brake disc (45351-K1Z-N21) on your 2021–2022 Honda PCX125 functions as the vital friction surface for the entire hydraulic stopping assembly. However, a warped or scuffed rotor compromises the pad-to-disc contact patch, leading to significantly increased stopping distances and dangerous lever vibration. This original Honda replacement restores the full structural integrity and precision-ground finish needed to protect your bike’s front-end safety. Ready for immediate shipping from Part Hive’s London warehouse; order before the 1 PM cutoff for same-day UK dispatch.
We see plenty of 2021–2022 Honda PCX-125s with front-end wobble or pulsing brakes, and the culprit is usually a warped 45351-K1Z-N21 disc. These rotors endure punishing stop‑start traffic, and sudden cooling from puddles or winter grit quickly distorts the steel. Once the disc surface is compromised, vibration spreads across the forks, pad wear becomes uneven, and ABS sensors can misread. Ignoring the issue only accelerates fatigue across the braking system. This original Honda Front Brake Disc delivers the correct density, snug fit, and factory‑spec finish, ensuring rattle‑free braking, restores smooth lever feel, and keeps the scooter’s stopping performance reliable through London’s demanding urban conditions and year‑round commuting.
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