{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"1de080977f01","name":"PISTON KIT VERTEX 78.0 B HC HONDA CRF 250R 2009, VERTEX 23529B GP RACER CHOICE HC COMPR 13,7:1","sku":"23529B","brand":"Vertex","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":221.65,"formatted":"£221.65"},"summary":"Vertex UK piston kit 23529B HC. Compression ratio 13.7:1. GP Racer Choice. Bore size 78.00mm [B 77.96mm]. Standard pistons and components are OEM replacements. Kits include piston, rings, wrist pin and circlips. All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle. Replacement rings are sold individually. Made in Italy. Fitted in many OEM bikes as STD. Replacement parts: Rings 590278000002 SET, Pin 715380, Clips 72055. Cross reference numbers ONLY: RING SET, PISTON (STD) 13011-KRN-A10, PISTON 13101-KRN-A10, PIN, PISTON 13111-KRN-850, CLIP, PISTON PIN (16MM) 13115-KM7-700. Weight 260g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"78mm"},{"label":"Variant Id","value":"281444"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/23529B/791edbf97c7ac16c.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/23529B/791edbf97c7ac16c.png"],"description":"Vertex UK piston kit 23529B HC. Compression ratio 13.7:1. GP Racer Choice. Bore size 78.00mm [B 77.96mm]. Standard pistons and components are OEM replacements. Kits include piston, rings, wrist pin and circlips. All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle. Replacement rings are sold individually. Made in Italy. Fitted in many OEM bikes as STD. Replacement parts: Rings 590278000002 SET, Pin 715380, Clips 72055. Cross reference numbers ONLY: RING SET, PISTON (STD) 13011-KRN-A10, PISTON 13101-KRN-A10, PIN, PISTON 13111-KRN-850, CLIP, PISTON PIN (16MM) 13115-KM7-700. Weight 260g.","descriptionMarkdown":"### Vertex GP Racer Choice High Compression Piston Kit\n\nThis Vertex piston kit is designed for high-performance applications, offering a GP Racer Choice HC (High Compression) configuration with a 13.7:1 compression ratio.\n\n**Key Features:**\n\n \n- High compression ratio of 13.7:1 for increased power output.\n \n- Piston features a bore size of 78.00mm (specific B measurement is 77.96mm).\n \n- All Vertex pistons undergo a T-5 or T-6 hardening and tempering cycle for enhanced durability.\n \n- Kits include the piston, rings, wrist pin, and circlips for a complete installation.\n \n- Replacement rings are available individually.\n \n- Manufactured in Italy, ensuring quality craftsmanship.\n \n- Vertex pistons are frequently fitted as standard equipment (STD) on many OEM bikes.\n\n**Included Components:**\n\n \n- Piston\n \n- Rings\n \n- Wrist Pin\n \n- Circlips\n\n**Replacement Parts Available:**\n\n \n- Rings: 590278000002 SET\n \n- Pin: 715380\n \n- Clips: 72055","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 250R","cc":null,"notes":null,"years":"2009"}],"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-vertex-780-b-hc-honda-crf-250r-2009-vertex-23529b-gp-racer-choice-hc-","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/1de080977f01:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/1de080977f01:1"}},"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."]}}