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ZF Sprocket, Honda MSX, Monkey 125, 2021-2025, 420/37Z
The ZF sprocket with 37 teeth and a 420-tooth pitch is a high-quality upgrade solution for modern 125cc motorcycles. Thanks to the combination of durable materials and optimized design, it offers an ideal balance of stability and weight,...
Almost gone
€43.95
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ZF Sprocket, Honda MSX 125, model years 2013–2020, Monkey 125, model years 2018–2021, various colors. 420/34Z
The ZF Dual sprocket is one of the most technically advanced solutions in the drivetrain sector and was developed for heavy-duty use on both road and off-road terrain. The combination of high-strength steel and lightweight duralumin...
Available
€32.95
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The JT Sprockets 42-tooth sprocket with a 520 pitch is synonymous with the highest manufacturing quality and precision. As one of the world’s largest manufacturers of drive components, JT relies on state-of-the-art CNC technology and a...
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€22.95
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The ESJOT sprocket, featuring 51 teeth and a 428-tooth pitch, was specifically designed to meet the most demanding OEM requirements and stands out for its exceptional durability and precision manufacturing quality. It is ideally suited...
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€25.95
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Das hochwertige Antriebsritzel von JT Sprockets sorgt für eine zuverlässige Kraftübertragung zwischen Motor und Kette. Dank präziser Fertigung und hochwertigem Stahl ist das Ritzel besonders langlebig und widerstandsfähig gegenüber...
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€3.99
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Das ESJOT Kettenrad wurde speziell für die hohen Anforderungen moderner Motorräder entwickelt und gehört zu den hochwertigsten Antriebskomponenten auf dem Markt. Durch die Kombination aus hochfestem Spezialstahl, präziser Fertigung und...
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€29.95
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Das JT Sprockets Antriebsritzel mit 14 Zähnen und 520er Teilung steht für höchste Fertigungsqualität und präzise Kraftübertragung. Die Ritzel werden in der weltweit größten und modernsten Produktionsstätte für...
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€9.99
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Ritzel, 428/13Z, Brixton Crossfire ab Bj. 22
Das ESJOT Antriebsritzel mit 13 Zähnen und 428er Teilung überzeugt durch hohe Fertigungsqualität und lange Lebensdauer. Es wird aus hochfestem Spezialstahl hergestellt und nach der Bearbeitung einsatzgehärtet, wodurch eine hohe...
Out of Stock
€12.99
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Das originale KTM Kettenrad mit 48 Zähnen ist ein passgenaues Ersatzteil für die KTM 125 Duke des Modelljahres 2025. Als OEM-Komponente entspricht es exakt den Spezifikationen, die ab Werk verbaut werden, und ist damit ideal für den...
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€40.95
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Das originale KTM Ritzel ist ein passgenaues Antriebsteil für die KTM 125 Duke der Modelljahre 2024 und 2025. Es sitzt auf der Abtriebswelle des Getriebes und übernimmt die direkte Kraftübertragung vom Motor auf den Kettensatz. Als...
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€19.99
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ESJOT pinions have been specially developed to meet high OEM requirements and are among the best pinions on the market worldwide. Special steel, high-quality case hardening, and precise gearing ensure exceptionally high strength and...
Available
€19.99
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The ZF dual sprocket with 48 teeth and 520 pitch is one of the most technically advanced sprockets on the market. It combines the high wear resistance of steel with the low weight of duralumin, offering an optimal balance of durability,...
Available
€28.95
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The ZF dual sprocket with 50 teeth and 520 pitch is one of the highest quality sprockets for sporty enduro, cross, and supermoto applications. The combination of an extremely wear-resistant steel ring gear and a lightweight duralumin...
Available
€28.95
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The ZF dual sprocket with 49 teeth and 520 pitch is one of the highest quality and most technically advanced sprockets in the off-road and supermoto sector. The design combines an extremely durable steel ring gear with a lightweight...
Available
€28.95
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This item is an original spare part from the Beta brand.
Available
€3.99
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This item is an original spare part from the Beta brand.
Available
€4.99
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JT Racing sprocket For the right set-up on the race track! Details: Lower weight due to the lightening holes Self-cleaning effect due to specially milled teeth Made from high-quality chromoly SCM420 steel for maximum durability Ideal for...
Available
€14.99
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JT Sprockets: Your bike, your style! With state-of-the-art machines and quality checks, every part is perfect. They turn, mill and drill so that everything fits precisely and your teeth bite properly on the chain. Every part is checked...
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€31.95
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The JT Sprockets production facility is now the largest and most modern production facility for sprockets and chain wheels in the world, equipped with the latest generation of CNC production machines. JT Sprockets produces the entire...
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€39.95
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ZF-Dual: Your sprocket with contrast! ZF-Dual sprockets combine strong steel with super-light duraluminum. The aluminum is extremely stable and yet light - up to 11 times stronger than normal aluminum! Meaning: Less weight, more...
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€59.95
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The JT Sprockets production facility is now the largest and most modern production facility for sprockets and sprockets in the world, equipped with the latest generation of CNC production machines, among other things. JT Sprockets...
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€15.99
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Die JT Sprockets Fertigung ist heute die größte und modernste Produktionsstätte für Ritzel und Kettenräder weltweit, ausgestattet unter anderem mit der neuesten Generation von CNC Fertigungsmaschinen. JT Sprockets produziert das gesamte...
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€13.99
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JT Sprockets betreibt die weltweit modernste Fertigung für Ritzel und Kettenräder – mit CNC-Technik auf höchstem Niveau. Jedes Teil durchläuft 25 Produktionsschritte und über zehn Qualitätskontrollen. Gefertigt wird durch Drehen, Fräsen...
Out of Stock
€29.95
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The JT Sprockets sprocket with 14 teeth offers the highest quality and precision for your Fantic XEF/XMF 125 or Beta RR 125. Manufactured in the world's most modern production facility with CNC production machines, it impresses with its...
Available
€14.99
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Chains & gearing
A well-maintained chain can last up to 20,000 km (around 12,000 miles), but sooner or later every chain wears out. You can tell a chain is worn when it's slack on the rear sprocket – and you can tell a sprocket is worn when its teeth have turned into so-called "shark fins". A poorly lubricated chain that's covered in rust needs replacing too! Heavy use and a lot of strain can even cause a chain like that to snap.
Gearing
When you change your front or rear sprocket, remember that the gearing lets you adjust the torque to suit your needs. If you're after acceleration and top speed isn't that important to you, go for shorter gearing. But watch out! The engine will then tend to rev out very quickly. If top speed matters more to you, you'll need taller gearing – and you'll also need longer to reach that top speed. Base your decision on the kind of roads you ride most: motorways, A-roads, town or even off-road.
Looks
We also stock rear sprockets and chains in various colours, so you can add a styling accent here too. By the way, when you order a chain kit, you get the complete kit: front sprocket, rear sprocket and chain. We'd also recommend O-ring chains, as they don't rust inside as quickly. Popular brands for chains and sprockets include DID, RR, JT, JMP and Esjot. So if you're looking for a new chain for your Honda CBR 125 R, Beta RR 125 LC, Yamaha DT 125 or KTM RC 125, these are the brands to go for.
Example of a worn chain
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