The Syntace Grinder with its outwardly ribbed hollow design in the highly stressed zone and a super sturdy crank arm connection, ensures maximum strength is combined with minimal weight. With it's superlight 72 g, it ensures the perfect protection for a double ring set up when hitting rocks, a fallen over tree, urban concrete walls, etc. The Syntace Grinder is CNC machined from heat treated 7075 grade aluminium and can be used instead of the large ring on triple cranks with the standard 104 BCD hole circle. The 7075 alloy is a more costly material than the commonly used light weight alloys or thermoplastics, but provides a much higher yield strength of up to 480 N/mm 2 (equivalent to an load of approx. 48 kg per square millimeter) Understatement - No outwardly visible logo disturbs the "turbine blade effect" of the Syntace Grinder, or is required to match some large logo on the cranks. Just on the inside the Syntace grinder provides a discreet note on its origin. Chainwheel, number of teeth: 34 - 36 Material: 7075 T7 aluminium
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