{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8d02e1277a57","name":"YAMAHA YZ 125 2005-2021 +1.00mm OVERSIZE 54.95mm SINGLE RING PISTON","sku":"V.3119.100","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":194.32,"formatted":"£194.32"},"summary":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. Pistons are made using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines and software with diamond tools to achieve specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating offers increased hardness and light surface porosity for superior Molybdenum Coating adhesion and durability. This piston is +1.00mm oversize with a 54.95mm diameter.","attributes":[],"image":"https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-1.00mm-oversize-54.95mm-single-ring-piston-7164-p.jpg","images":["https://www.twsgb.co.uk/Graphics/Std_Product_Images/yamaha-yz-125-2005-2020-1.00mm-oversize-54.95mm-single-ring-piston-7164-p.jpg"],"description":"Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. Pistons are made using gravity casting or hydraulic forging, followed by a heat treatment process in an automatic HT implant with solubilization by quench in hot water. Machining is performed using the latest CNC machines and software with diamond tools to achieve specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. Pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new Phosphate Coating offers increased hardness and light surface porosity for superior Molybdenum Coating adhesion and durability. This piston is +1.00mm oversize with a 54.95mm diameter.","descriptionMarkdown":"### Vertex High Performance Oversize Single Ring Piston\n\nThe Vertex +1.00mm oversize single ring piston is engineered for riders seeking maximum reliability and performance. Precision manufactured to a 54.95mm diameter, this piston is designed to restore engine power and compression, making it an essential component for top end rebuilds where a cylinder bore has been enlarged.\n\nVertex utilizes advanced Low-Ex silicon-charged aluminium alloys to ensure minimal thermal expansion and consistent performance under extreme operating conditions. Using a combination of gravity casting and hydraulic forging, these pistons undergo a sophisticated heat treatment process that refines the material structure for superior strength and durability.\n\n### Key Features\n\n \n- Advanced Alloy Technology: Manufactured from specialized silicon-charged aluminium alloys to manage thermal expansion effectively.\n \n- Precision Machining: CNC machined using diamond tooling to achieve precise tolerances and specific surface finishes required for high performance applications.\n \n- Phosphate Coating: Features a sophisticated phosphate coating that increases surface hardness and provides superior adhesion for the friction reducing top layer.\n \n- Molybdenum Bisulphite Finish: Coated with a specialized Molybdenum Bisulphite layer to reduce internal friction and assist during the critical piston break in period.\n \n- Rigorous Quality Control: Every component undergoes strict manual and automatic inspections to ensure the highest standards of engineering excellence.\n \n- Durability Focused: The combination of advanced coating technology ensures the piston maintains performance and integrity throughout its service life.\n\nWhether you are performing routine maintenance or a performance rebuild, Vertex pistons provide the professional grade quality necessary to keep your engine running at its peak.","weightGrams":null,"fitments":[],"collections":[],"links":{"page":"https://www.2brosparts.com/products/yamaha-yz-125-2005-2021-100mm-oversize-5495mm-single-ring-piston","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8d02e1277a57:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8d02e1277a57:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}