{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"eefbf53cb49d","name":"PISTON KIT 73.50mm 1978-1981 SUZUKI GS1000 WISECO 4066M07350","sku":"56-W9781.7350","brand":"Wiseco","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":189.32,"formatted":"£189.32"},"summary":"Forged piston kit sized at 73.50 mm to increase displacement to approximately 1100 cc when used as a complete set of four. Designed with a 10.25:1 compression ratio, each single-cylinder kit includes piston, ring set, wrist pin and circlips, and requires cylinder boring to suit the oversize. Features forged aluminium construction for strength under sustained thermal load and a dedicated ring pack for the 73.50 mm bore size. Supplied with piston, rings, wrist pin and circlips. Specifications include a bore size of 73.50 mm, an oversize of +3.50 mm over standard 70.00 mm, a compression ratio of 10.25:1, an air-cooled inline-four engine configuration reference, a stroke of 64.80 mm for displacement calculation, and a resulting displacement of approximately 1100 cc for a set of four. Installation note: cylinder boring and correct piston-to-bore clearance required.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"73.50mm"},{"label":"Variant Id","value":"258721"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9781_2E7350/9b9acf548a947110.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W9781_2E7350/9b9acf548a947110.png"],"description":"Forged piston kit sized at 73.50 mm to increase displacement to approximately 1100 cc when used as a complete set of four. Designed with a 10.25:1 compression ratio, each single-cylinder kit includes piston, ring set, wrist pin and circlips, and requires cylinder boring to suit the oversize. Features forged aluminium construction for strength under sustained thermal load and a dedicated ring pack for the 73.50 mm bore size. Supplied with piston, rings, wrist pin and circlips. Specifications include a bore size of 73.50 mm, an oversize of +3.50 mm over standard 70.00 mm, a compression ratio of 10.25:1, an air-cooled inline-four engine configuration reference, a stroke of 64.80 mm for displacement calculation, and a resulting displacement of approximately 1100 cc for a set of four. Installation note: cylinder boring and correct piston-to-bore clearance required.","descriptionMarkdown":"### Wiseco Forged Piston Kit 73.50mm\n\nUpgrade your motorcycle's performance with this Wiseco forged piston kit, precision-engineered at 73.50mm. This kit is designed to increase displacement to approximately 1100cc when used as a complete set of four pistons. Featuring a 10.25:1 compression ratio, this single-cylinder kit includes all necessary components for installation: the piston itself, a dedicated ring set, a high-strength wrist pin, and circlips. Please note that cylinder boring to match the oversize is required for proper fitment.\n\n### Key Features:\n\n \n- Forged Aluminum Construction: Provides superior strength and durability, capable of withstanding high thermal loads for reliable performance.\n \n- Oversize Bore: This piston is sized at 73.50mm, which is +3.50mm over the standard 70.00mm bore.\n \n- Optimized Compression Ratio: Engineered for a 10.25:1 compression ratio, enhancing combustion efficiency and power output.\n \n- Complete Kit: Each kit includes the forged piston, a custom-fit ring pack for the 73.50mm bore, a robust wrist pin, and essential circlips for secure installation.\n\n### Specifications:\n\n \n- Bore Size: 73.50 mm\n \n- Compression Ratio: 10.25:1\n \n- Engine Type: Designed for air-cooled inline-four engines.\n \n- Stroke: 64.80 mm (This stroke dimension is referenced for displacement calculations).\n \n- Resulting Displacement: A set of four pistons will yield an approximate displacement of 1100cc.\n \n- Installation Requirement: Cylinder boring to the specified oversize and correct piston-to-bore clearance are crucial for proper installation and engine longevity.","weightGrams":null,"fitments":[{"make":"SUZUKI","model":"GS 1000","cc":null,"notes":null,"years":"1978–1981"}],"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-7350mm-1978-1981-suzuki-gs1000-wiseco-4066m07350","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/eefbf53cb49d:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/eefbf53cb49d: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."]}}