{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c6cdd740e86f","name":"PISTON KIT 98-01 YZ125 54.00 B, WOSSNER 8091DB YAMAHA MX","sku":"56-W726.B.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":115.06,"formatted":"£115.06"},"summary":"Wossner 54.01mm bore piston kit for Yamaha YZ125 and WR125 models. Forged construction ensures durability for high thermal and mechanical loads in two-stroke engines. Features superior heat transfer design and an elliptical shape for even load distribution. Specifications include a 54.01mm bore size, 53.96mm actual piston size, 125 cm&sup3; displacement, 54.50mm stroke, 0.05mm clearance, 2-stroke compression ratio, 28.00mm compression height. Includes piston, lock PN# CW15, pin PN# WP032, ring set PN# RSB5400, and rod PN# P2019. Manufactured in Germany.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"54.00mm"},{"label":"Variant Id","value":"257554"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W726_2EB_2EWO/ec12830a676472fb.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W726_2EB_2EWO/ec12830a676472fb.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W726_2EB_2EWO/408f70f82ab934d1.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W726_2EB_2EWO/67287a8e9eb17b83.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W726_2EB_2EWO/3b67495be8e942f5.jpg"],"description":"Wossner 54.01mm bore piston kit for Yamaha YZ125 and WR125 models. Forged construction ensures durability for high thermal and mechanical loads in two-stroke engines. Features superior heat transfer design and an elliptical shape for even load distribution. Specifications include a 54.01mm bore size, 53.96mm actual piston size, 125 cm&sup3; displacement, 54.50mm stroke, 0.05mm clearance, 2-stroke compression ratio, 28.00mm compression height. Includes piston, lock PN# CW15, pin PN# WP032, ring set PN# RSB5400, and rod PN# P2019. Manufactured in Germany.","descriptionMarkdown":"### Wossner Piston Kit for Yamaha YZ125/WR125 (1998-2001)\n\nUpgrade your Yamaha YZ125 or WR125 engine with this high-performance Wossner piston kit. Engineered in Germany, this forged piston is designed to withstand the extreme thermal and mechanical demands of high-performance two-stroke applications. The advanced design ensures reliable operation and optimal power delivery for your motorcycle.\n\n**Key Features:**\n\n\t\n- High-strength forged piston construction for enhanced durability.\n\t\n- Superior heat transfer design efficiently moves heat from the combustion chamber to the cylinder wall.\n\t\n- Elliptical piston shape promotes even load distribution and minimizes piston distortion under stress.\n\t\n- Precision manufacturing in Germany guarantees exceptional quality and performance.\n\n**Specifications:**\n\n\t\n- Bore Size: 54.01 mm\n\t\n- Actual Piston Size: 53.96 mm\n\t\n- Displacement: 125 cm&sup3;\n\t\n- Stroke: 54.50 mm\n\t\n- Clearance: 0.05 mm\n\t\n- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)\n\t\n- Compression Height: 28.00 mm\n\n**Included Components:**\n\n\t\n- Piston: Wossner PN# 8091DB\n\t\n- Lock: PN# CW15\n\t\n- Pin: PN# WP032\n\t\n- Ring Set: PN# RSB5400\n\t\n- Rod: PN# P2019","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"MC 125","cc":null,"notes":null,"years":"2000–2001"},{"make":"GAS-GAS","model":"MX 125","cc":null,"notes":null,"years":"2000–2001"},{"make":"GASGAS","model":"EC 125","cc":null,"notes":null,"years":"2000–2001"},{"make":"YAMAHA","model":"YZ 125","cc":null,"notes":null,"years":"1996–2001"}],"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-98-01-yz125-5400-b-wossner-8091db-yamaha-mx","buyOneNow":null,"basketWithThis":null}},"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."]}}