{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"aa55b6b66ac1","name":"PISTON KIT GP DOMED 54.0 B RS125 03-09, VERTEX 23105B GP HONDA","sku":"56-W177.B.VERTEX","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":228.02,"formatted":"£228.02"},"summary":"VERTEX UK forged piston kit 23105B for the Honda RS 125. This kit features a dome top piston, a 0.8mm flat ring, wrist pin, and two clips. All Vertex pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle. This product is made in Italy. Bore size is 54.00mm [B 53.95mm]. Replacement parts include rings (53007805400), pin (711127), and clips (72071).","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"54mm"},{"label":"Variant Id","value":"285053"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W177_2EB_2EVERTEX/08878580f5210147.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W177_2EB_2EVERTEX/08878580f5210147.jpg"],"description":"VERTEX UK forged piston kit 23105B for the Honda RS 125. This kit features a dome top piston, a 0.8mm flat ring, wrist pin, and two clips. All Vertex pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle. This product is made in Italy. Bore size is 54.00mm [B 53.95mm]. Replacement parts include rings (53007805400), pin (711127), and clips (72071).","descriptionMarkdown":"### Vertex GP Domed Piston Kit for Honda RS125\n\nEnhance your motorcycle's performance with this high-quality Vertex GP Domed Piston Kit. Designed as a cost-effective alternative to standard HRC pistons, this kit provides excellent value without compromising on performance.\n\nThis piston kit includes a domed piston, a single 0.8mm flat ring, a wrist pin, and two clips. The piston features a bore size of 54.00mm and a piston skirt that requires careful chamfering for optimal operation. The ring groove also benefits from chamfering, especially at the rear to accommodate the boost port.\n\nVertex pistons are manufactured in Italy and undergo heat treatment with a T-5 or T-6 hardening and tempering cycle for superior durability. Many Vertex pistons are fitted as Original Equipment (OE) on production bikes, attesting to their quality and reliability.\n\n**Key Features:**\n\n \n- Domed piston design for enhanced performance.\n \n- Kit includes piston, 0.8mm flat ring, wrist pin, and circlips.\n \n- Piston Bore Size: 54.00mm.\n \n- Heat-treated with a T-5 or T-6 hardening and tempering cycle.\n \n- Made in Italy.\n \n- Designed for specific motorcycle applications.\n\n**Specifications:**\n\n \n- Piston Bore Size: 54.00mm\n \n- Ring Specification: 0.8mm Flat Ring\n\n**Replacement Parts Available:**\n\n \n- Rings: Part Number 53007805400 (requires 1)\n \n- Pin: Part Number 711127\n \n- Clips: Part Number 72071","weightGrams":null,"fitments":[{"make":"HONDA","model":"RS 125","cc":null,"notes":null,"years":"2003–2007"},{"make":"HONDA","model":"RS GP DOMED 125","cc":null,"notes":null,"years":"2003–2007"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-gp-domed-540-b-rs125-03-09-vertex-23105b-gp-honda","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/aa55b6b66ac1:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/aa55b6b66ac1:1"}},"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."]}}