





Original Honda PCX 125 Complete Cylinder Barrel Piston Ring Kit (12100-K1Z-T00) | 2021-2025
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Discover the ultimate upgrade for your motorcycle.
Designed with precision engineering, this offers unmatched performance and durability.
This original Complete Cylinder Barrel Piston Ring Kit (12100-K1Z-T00) features a precision-honed cylinder barrel and matching piston set to restore original-spec compression in 2021-2025 Honda PCX 125 engines. It provides the exact tolerances and thermal efficiency needed to eliminate oil consumption and regain the snappy low-end torque required for urban commuting.
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.
- 12100-K1Z-T00
_
- PCX125
- 2021
- 2022
- 2023
- 2024
- 2025
- Honda
- 125
- A
- PCX125
- NEW
Product Overview
This high-quality Original Complete Cylinder Barrel Piston Ring Kit 150cc is designed to meet or exceed factory performance standards and is suitable for Honda PCX125 (2021-2025) models.
The Complete Cylinder Barrel Piston Ring Kit 150cc supplies the core top-end components, a factory-bored cylinder barrel together with a matched piston and ring set, that work together to contain combustion and convert it into crankshaft motion. Over time, cylinder walls glaze or score, piston skirts wear, and rings lose tension, leading to compression loss, blow-by, increased oil consumption, reduced power, and smoky running. This original replacement kit is manufactured to original factory specifications, restoring reliable performance to your Honda scooter.
- Brand New Original Complete Cylinder Barrel Piston Ring Kit 150cc
- Part Number: 12100-K1Z-T00
- Original replacement for Honda PCX125 (2021-2025)
- Restores full cylinder compression, sealing, and combustion efficiency
- Helps reduce blow-by, oil consumption, and power loss from top-end wear
- Direct fit, no modification required
- Recommended for engine top-end overhaul, high-mileage rebuilds, or when compression loss is diagnosed
- 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 with compression loss, blow-by, or high oil consumption from a worn top end
• Replacing the Complete Cylinder Barrel Piston Ring Kit 150cc during engine top-end overhaul or high-mileage rebuild
• Mechanics and workshops carrying out Honda engine top-end servicing
• Riders wanting to restore the original cylinder compression and engine power of their Honda scooter
• Anyone looking for a guaranteed original replacement for their Honda scooters
Complete Part Guide
The Honda PCX125 Complete Cylinder Barrel Piston Ring Kit (12100-K1Z-T00) for 2021-2025 models is the core assembly responsible for generating engine compression and power. A scored cylinder or worn rings lead to significant oil consumption, blue exhaust smoke, and a drastic reduction in torque. This original Honda replacement kit provides a precision-honed bore and matching piston set to restore factory-spec compression and thermal efficiency. In stock at Part Hive's London warehouse, order before the 1 PM cutoff for same-day UK dispatch.
The 12100-K1Z-T00 kit is a comprehensive top-end solution designed to restore the compression and mechanical integrity of 2021-2025 Honda PCX-125 engines. We see many high-mileage scooters where a worn cylinder has led to "piston slap" and excessive vibration through the floorboards. When a bore becomes ovalized or the rings lose their seal, the resulting loss of compression makes the bike sluggish and unreliable for city commuting. This original Honda cylinder and piston set replaces the entire assembly and ensures the piston-to-bore clearance is factory-perfect, eliminating blue exhaust smoke and protecting the engine from the long-term crankshaft damage caused by uneven combustion forces.
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