Sprocket Rr Jtx Yam Gl 49 Jtx251.49GldTwinstar Steel Aluminum Hybrid SprocketSteel 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
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product description
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Twinstar Steel/Aluminum Hybrid Sprocket
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