{"product_id":"mgt1-pwb-53702-1129320002","title":"Beta RR 390 4 T Race [2025-2026] - Piston Kit","description":"\u003ch2\u003ePROX piston kit for Beta RR 390 4 T Race\u003c\/h2\u003e\n\u003cp\u003eThe PROX piston kit is intended for the Beta RR 390 4 T Race built in 2025-2026. The forged aluminum piston offers a clearly defined technical design for repairing the 4T engine.\u003c\/p\u003e\n\u003ch3\u003eTechnical features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: aluminum\u003c\/li\u003e\n\u003cli\u003ePiston Type: Forged\u003c\/li\u003e\n\u003cli\u003ePiston compression: standard\u003c\/li\u003e\n\u003cli\u003eDiameter Ø (mm): 87,970\u003c\/li\u003e\n\u003cli\u003eLetter oversize: B\u003c\/li\u003e\n\u003cli\u003eOversize: +0.01\u003c\/li\u003e\n\u003cli\u003eCompression ratio: 12.5:1\u003c\/li\u003e\n\u003cli\u003eStroke: 4T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMatching vehicle assignment\u003c\/h3\u003e\n\u003cp\u003eThe piston kit fits the Beta RR 390 4 T Race in the full year range 2025-2026. The assignment supports the selection of the appropriate piston for this specific motorcycle model.\u003c\/p\u003e\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003cp\u003eThe kit includes pistons, rings, piston pins and circlips. The scope of delivery therefore includes the components for piston replacement listed in the product set.\u003c\/p\u003e\n\u003ch3\u003eSelection guide\u003c\/h3\u003e\n\u003cp\u003eWhen making the selection, the diameter of 87,970 mm, the oversize letter B, the oversize specification +0.01 and the compression ratio 12.5:1 should be taken into account in particular. The standard piston compression and the forged aluminum piston design complete the technical characteristics of this PROX kit.\u003c\/p\u003e","brand":"PWB","offers":[{"title":"Default Title","offer_id":57270715187526,"sku":"MGT1-PWB-53702-1129320002","price":215.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4616\/8646\/files\/1129320002-1_72bbb31f-0f85-44ef-ac73-a4977567a27a.jpg?v=1788597340","url":"https:\/\/motorize.uk\/products\/beta-rr-390-4-t-race-2025-2026-piston-kit-2","provider":"Motorize","version":"1.0","type":"link"}