Piñón híbrido Twinstar acero/aluminio JT SPROCKETS JTX210.51RED

Steel outer ring Heat-induction hardened high-carbon steel JT advanced tempering process achieves hardness that could last six times longer than a 7075-T6 aluminum sprocket, enhancing power transfer performance Alu core Lightweight aviation-grade ergal 7075-T6 aluminum Precision made using state of the art laser cutting and CNC equipment, resulting in an ultra lightweight race power design Brand JT SPROCKETS Vendor part number JTX210.51RED Chain Size 520 Color/Finish Black, Red Material Carbon Steel, 7075-T6 Aluminum Mounting Position Rear Product Name Sprocket Style Twinstar Tooth Count 51 Type Drive Units Each