{"product_id":"did-420nz-120-motorcycle-chain-120-links-gold-solid-bushing-sdh-hardened-pins-for-150cc","title":"DID 420NZ-120 Motorcycle Chain 120 Links Gold — Solid-Bushing, SDH-Hardened Pins for 150cc","description":"\u003cp\u003e\u003cstrong\u003eDID's 420NZ-120 is a gold-finished, non O-ring motorcycle chain built with solid bushings, quad-riveted pins and SDH surface-treated pins for longer wear and reliable shock resistance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for small-displacement motorcycles and scooters, the DID 420NZ-120 combines a corrosion-resistant gold finish with an advanced pin hardening process to withstand abrasive, dusty and muddy conditions. This solid-bushing, quad-riveted design provides high durability in a compact, lightweight package. A master (connecting) link is included for straightforward installation and removal.\u003c\/p\u003e\n\n\u003ch3\u003eWhat makes the SDH pin treatment important for chain longevity?\u003c\/h3\u003e\n\n\u003cp\u003eDID's SDH (surface diffusion hardening) process hardens the outer layer of the pin while keeping a tougher, more ductile core. That combination yields excellent impact resistance and improved shock absorption without making the pin brittle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChromium-carbide-like hard surface resists wear and scuffing.\u003c\/li\u003e\n  \u003cli\u003eSofter inner core maintains shock resilience under load.\u003c\/li\u003e\n  \u003cli\u003eEnhanced anti-oxidation properties slow corrosion in harsh environments.\u003c\/li\u003e\n  \u003cli\u003ePerforms reliably in dusty, muddy or wet riding situations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this chain perform for small-engine motorcycles and scooters?\u003c\/h3\u003e\n\n\u003cp\u003eThe 420NZ series targets engines up to about 150cc, offering a balance between strength and low weight suited to commuter and light sport applications. The chain's tensile capacity and projected wear life make it a strong choice for frequent riders who need dependable power transmission without excess bulk.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum recommended engine displacement: 150cc.\u003c\/li\u003e\n  \u003cli\u003eTensile strength: 4,930 pounds for robust load handling.\u003c\/li\u003e\n  \u003cli\u003eSolid bushing design reduces lateral flex and improves alignment.\u003c\/li\u003e\n  \u003cli\u003eGold finish helps resist surface corrosion and eases inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the 420NZ differ from O-ring chains and why choose non O-ring?\u003c\/h3\u003e\n\n\u003cp\u003eUnlike O-ring chains that use rubber seals to retain lubrication between plates, the 420NZ is a non O-ring, solid-bushing chain engineered for environments where seals can trap abrasive particles or be damaged. Without O-rings, the chain rides slightly lighter and can be a simpler option for applications where frequent cleaning and relubrication are practical.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo O-rings to catch grit or fail under heavy contamination.\u003c\/li\u003e\n  \u003cli\u003eSimpler maintenance: periodic cleaning and lube keep performance optimal.\u003c\/li\u003e\n  \u003cli\u003eReduced rotational mass benefits nimble, low-displacement bikes.\u003c\/li\u003e\n  \u003cli\u003eQuad-riveted pins provide secure fastenings and durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this chain best suited for? The DID 420NZ-120 is aimed at riders of small motorcycles, mopeds and scooters up to roughly 150cc who want a compact, durable drive chain that tolerates harsh trail-side conditions. It's a practical choice for commuters, weekend riders, and anyone who values long wear life and straightforward maintenance over the sealed convenience of O-ring designs. Mechanics and hobbyists will appreciate the included master link for easier fitting and occasional removal.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What engine size is the DID 420NZ-120 suitable for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Recommended for motorcycles and scooters up to 150cc for reliable performance and longevity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the chain come with a connecting link?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, a master (connecting) link is included for installation and removal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DID","offers":[{"title":"Default Title","offer_id":55171327590743,"sku":"B006O83RQQ","price":89.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/did-420nz-120-front-packaging.jpg?v=1790442615","url":"https:\/\/britishgarage.co.uk\/products\/did-420nz-120-motorcycle-chain-120-links-gold-solid-bushing-sdh-hardened-pins-for-150cc","provider":"British Garage","version":"1.0","type":"link"}