Rear sprocket JT SPROCKETS Aluminium Standard 520 Aantal tanden:46 tanden the brand is the OEM the brand is the OEM standard for many makes and used by many MXGP teams Now the owners of the CR 125 250 from 2002 onward will be able to renew JT Sprockets produce a full range of superior quality motorcycle front and rear sprockets Aviation grade 7075 T6 aluminium alloy (Ergal) for lightweight competition sprocket