Black aluminum rear sprocket -JTA1857.37 BLK pitch 520 and 37 teeth for SMC/Barossa Black Hawk 250 (2006-2008) / SMC/Barossa Quarterback 250 R (2005-2006) / SMC/Barossa Silver Hawk 170 R (2006-2007) / SMC/Barossa Silver Hawk 250 R (2006-2008) / Yamaha YFM 250 R SE Special Edition YFM25RSE (2009) / Yamaha YFM 250 R YFM25R (2008-2014) / Yamaha YFM 350 R (2007-2013) / Yamaha YFM 350 R Raptor (2004-2012) / Yamaha YFM 700 R (2006-2018) / Yamaha YFM 700 R SE Special Edition (2021-2035) / Yamaha YFM 700 RS B (2016-2018) / Yamaha YFZ 450 (2004-2014) / Yamaha YFZ 450 R (2022-2032) / Yamaha YFZ 450 R SE Special Edition (2009-2015) / Yamaha YFZ 450 R Special Edition (2019-2020) / Yamaha YFZ 450 R YSS Special Edition (2018-2020) / Yamaha YFZ 450 R YSX (2016-2018) / Yamaha YFZ 450 SE Special Edition (2007) / Yamaha YFZ 450 SP Special Edition (2008).
Technical data:
- The JT Sprockets manufacturing unit is now the largest and most modern sprocket and gear production facility in the world;
- equipped with state-of-the-art CNC production machines;
- JT Sprockets produces the entire range of sprockets and gears for the aftermarket and original equipment market;
- each gear and chain wheel goes through 25 production stages;
- it undergoes more than ten individual quality checks before successfully leaving production;
- JT Sprockets produces correctly: through turning, milling, and drilling;
- this is the only way to achieve the highest quality with the smallest tolerances and the best tooth profile;
- after subsequent heat treatment, each part is manually inspected - in this way, JT Sprockets sets new quality standards in the motorcycle industry.
Technical data:
- Chain pitch: 520;
- inner diameter: 125 mm;
- mounting diameter: 145 mm;
- hole: 10.5 mm;
- number of mounting holes: 4;
- screw type: flat head;
- number of teeth: 37;
- sprocket material: aluminum;
- color: black;
- manufacturer: JT.
The complete application list can be found below.
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