{"title":"Home page","description":null,"products":[{"product_id":"athena-big-bore-cylinder-kit-293cc-yamaha-yz250-2003-2026","title":"Athena Big Bore Cylinder Kit (293cc) | Yamaha YZ250 (2003–2026)","description":"\u003cdiv id=\"p-rc_55f0b5f49b210f99-20\"\u003e\n\u003cdiv data-olk-copy-source=\"MailCompose\"\u003eUnlock the raw power your Yamaha YZ250 was built for. The \u003cb\u003eAthena P400485100042 Big Bore Kit\u003c\/b\u003e is a complete, bolt-on performance solution that increases your displacement to \u003cb\u003e293cc\u003c\/b\u003e without requiring permanent engine modifications.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-21\"\u003e\n\u003cdiv\u003eDesigned and engineered in Italy, this kit provides a significant boost in torque and horsepower across the entire power curve while maintaining the legendary reliability of your YZ250.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eKey Performance Benefits\u003c\/b\u003e\u003c\/div\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-22\" role=\"presentation\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eMassive Displacement Increase:\u003c\/b\u003e Steps up from the stock 250cc to a potent \u003cb\u003e293cc\u003c\/b\u003e via a 72mm bore.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-23\" role=\"presentation\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eSuperior Cooling:\u003c\/b\u003e Features redesigned, widened water jackets that provide a higher flow rate to keep engine temperatures stable under race conditions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-24\" role=\"presentation\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eEngineered for Durability:\u003c\/b\u003e The light aluminum alloy cylinder is lined with \u003cb\u003eMotor-Nicksil\u003c\/b\u003e (nickel-silicon coating) for exceptional smoothness and wear resistance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-25\" role=\"presentation\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eRace-Ready Piston:\u003c\/b\u003e Includes a forged piston with a molybdenum coating to reduce friction and extend the life of your top end.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable data-path-to-node=\"9\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eFeature\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eDetails\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eBore Diameter\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e72.00 mm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eDisplacement\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e293.2 cc\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eCompression Ratio\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003e15.0:1\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eWheel Power\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003eApprox. 45.3 HP \/ 7600 rpm\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv\u003e\u003cb\u003eInstallation\u003c\/b\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cdiv\u003eBolt-on (No machining required)\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eWhat’s in the Box?\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis comprehensive kit includes everything needed for a seamless installation:\u003c\/div\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cdiv role=\"presentation\"\u003eHigh-quality Aluminum Cylinder (72mm)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv role=\"presentation\"\u003eCylinder Head \u0026amp; Exhaust Valve Kit\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv id=\"p-rc_55f0b5f49b210f99-26\" role=\"presentation\"\u003e\n\u003cdiv\u003eForged Piston, Rings, Pin, and Clips\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv role=\"presentation\"\u003eAthena High-Performance Gasket Set (Top End)\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv role=\"presentation\"\u003eStep-by-step installation instructions\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote\u003e\n\u003cdiv\u003e\n\u003cb\u003ePro Tip:\u003c\/b\u003e To achieve maximum performance gains, we recommend re-jetting your carburetor and using the specific Athena gaskets included in the kit.\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003cdiv\u003e\n\u003cb\u003eCompatible with:\u003c\/b\u003e Yamaha YZ250 (Years 2003, 2004, 2005... through 2026).\u003c\/div\u003e","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44664117133381,"sku":"P400485100042","price":35885.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/athena4.webp?v=1771839225"},{"product_id":"s3-footpegs-kit-africa-twin-black-1","title":"S3 Footpegs Kit Africa Twin Black","description":"S3 Footpegs Kit Africa Twin Black","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44863258460229,"sku":null,"price":4552.39,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_5944e07b-b470-485c-a974-77d63c763244.jpg?v=1775853523"},{"product_id":"s3-footpegs-kit-titanium-1","title":"S3 Footpegs Kit Titanium","description":"S3 Footpegs Kit Titanium","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863258492997,"sku":null,"price":7608.45,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_1b58987c-ecbe-417c-a89f-ec3042e7105a.jpg?v=1775853530"},{"product_id":"s3-footrest-solid-aluminium-black-1","title":"S3 Footrest Solid Aluminium Black","description":"S3 TÉNÉRÉ YAMAHA Footrest Solid Aluminum Black","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44863258558533,"sku":null,"price":3231.45,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_e16244aa-a0d4-401e-a8f5-5a3d3cff1488.jpg?v=1775853537"},{"product_id":"s3-footrest-solid-rally-blue-1","title":"S3 Footrest Solid Rally Blue","description":"S3 Footrest Solid Adv Blk KTM 690,790,890,1290","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863258591301,"sku":null,"price":2891.67,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_05c1b7bd-59d8-4308-8cf4-c82897b2e8cb.jpg?v=1775853544"},{"product_id":"s3-hard-rock-footrest-tenere-xt700-titanium-1","title":"S3 Hard Rock Footrest Tenere XT700 Titanium","description":"S3 Hard Rock Footrest Tenere XT700 Titanium","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44863258624069,"sku":null,"price":2891.67,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_d2031729-7804-475b-b7e8-35c4bc429392.jpg?v=1775853550"},{"product_id":"s3-ktm-husky-tpi-2017-21-blue-low-1","title":"S3 KTM \/ Husky TPI-2017-21 : Blue, Low","description":"S3 Hard Rock Foot Rest, Low, KTM, HQVA black","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44863258656837,"sku":null,"price":2799.77,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_147caffc-57bc-4bae-9a92-d5032df3b329.jpg?v=1775853557"},{"product_id":"s3-ktm-husky-tpi-2017-21-blue-std-1","title":"S3 KTM \/ Husky TPI-2017-21 : Blue, STD","description":"S3 Hard Rock Foot Rest, Low, KTM, HQVA black","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863258689605,"sku":null,"price":2799.77,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_91222237-a0aa-45bf-a547-f5b41a83ab5e.jpg?v=1775853564"},{"product_id":"s3-factory-pipe-hard-ktm-husky-gg-2017-20","title":"S3 Factory Pipe Hard KTM\/Husky\/GG 2017-19","description":"S3 Factory Pipe Hard KTM\/Husky\/GG 2017-19","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863261278277,"sku":null,"price":5781.54,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_f5418768-2ae4-4746-9af4-bdb46f7f61a3.jpg?v=1775853805"},{"product_id":"s3-factory-pipe-hard-ktm-husky-gg-2020-24","title":"S3 Factory Pipe Hard KTM\/Husky\/GG 2020-23","description":"S3 Factory Pipe Hard KTM\/Husky\/GG 2020-23","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863261311045,"sku":null,"price":5781.54,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_c30a7b81-ce28-4586-a1ad-8157108efe5a.jpg?v=1775853810"},{"product_id":"s3-factory-pipe-hard-sherco-1","title":"S3 Factory Pipe Hard Sherco","description":"S3 Factory Pipe Hard Sherco","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863261376581,"sku":null,"price":5781.54,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_57a31d7a-3a2a-4d28-9c25-298f9ac38efc.jpg?v=1775853817"},{"product_id":"s3-factory-pipe-hard-sherco-platinum-2017-2022","title":"S3 Factory Pipe  Hard Sherco Platinum 2017-2021","description":"S3 Factory Pipe  Hard Sherco Platinum 2017-2021","brand":"PSS Racing","offers":[{"title":"Default Title","offer_id":44863261442117,"sku":null,"price":6242.73,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_e12dd040-dd24-4ecb-bf82-b96cefad9490.jpg?v=1775853822"},{"product_id":"s3-factory-pipe-hard-sherco-platinum-2026","title":"S3 Factory Pipe  Hard Sherco Platinum 2025-","description":"S3 Factory Pipe  Hard Sherco Platinum 2025-","brand":"S3 Parts","offers":[{"title":"Default Title","offer_id":44863261474885,"sku":null,"price":5781.54,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/9349\/9717\/files\/GetImageNoResize_81cefbbe-7fd5-4283-9d11-2ab455c70e98.jpg?v=1775853827"}],"url":"https:\/\/pssracing.co.za\/collections\/frontpage.oembed","provider":"PSS Racing","version":"1.0","type":"link"}