Aluminum rear sprocket - 49 teeth, black | MOOSE RACING

Exact fit to:

YAMAHA YZ 250 [2019 - 2021]
YAMAHA YZ 250 [1999 - 2017]
YAMAHA YZ 250 [1999 - 2018]
Out of stock

2005 - 2016 YAMAHA YZ 250
Transmision ratio:

12131415161718
383.17
-11.3%
2.92
-18.2%
2.71
-24.0%
2.53
-29.1%
2.38
-33.5%
2.24
-37.4%
2.11
-40.9%
463.83
+7.3%
3.54
-0.9%
3.29
-8.0%
3.07
-14.1%
2.88
-19.5%
2.71
-24.2%
2.56
-28.4%
473.92
+9.7%
3.62
+1.2%
3.36
-6.0%
3.13
-12.3%
2.94
-17.8%
2.76
-22.6%
2.61
-26.9%
484.00
+12.0%
3.69
+3.4%
3.43
-4.0%
3.20
-10.4%
3.00
-16.0%
2.82
-20.9%
2.67
-25.3%
494.08
+14.3%
3.77
+5.5%
3.50
-2.0%
3.27
-8.5%
3.06
-14.2%
2.88
-19.3%
2.72
-23.8%
504.17
+16.7%
3.85
+7.7%
3.57
standard
3.33
-6.7%
3.12
-12.5%
2.94
-17.6%
2.78
-22.2%
514.25
+19.0%
3.92
+9.8%
3.64
+2.0%
3.40
-4.8%
3.19
-10.8%
3.00
-16.0%
2.83
-20.7%
524.33
+21.3%
4.00
+12.0%
3.71
+4.0%
3.47
-2.9%
3.25
-9.0%
3.06
-14.4%
2.89
-19.1%

Specifications

Manufacturer MOOSE RACING

Product description


The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets 100% machined, no stamping or grinding Optimal tooth thickness results in maximum tooth and chain contact

Fits to following motorcycles:

YAMAHA WR 450 F (2003 - 2018), YAMAHA YZ 125 (1999 - 2022), YAMAHA YZ 250 (1999 - 2021), YAMAHA YZ 250 F (2001 - 2021), YAMAHA YZ 400 F (1998 - 1999), YAMAHA YZ 450 F (2003 - 2021), HONDA XR 250 (1984 - 1994), HONDA XR 500 R (1979 - 1984), YAMAHA YZ 250 X (2016 - 2022), HONDA XR 350 R (1983 - 1985), YAMAHA WR 400 F (1999 - 2002), YAMAHA WR 426 F (2001 - 2002), YAMAHA YZ 426 F (2000 - 2002), YAMAHA YZ 450 FX (2016 - 2022), YAMAHA TT R 230 (2005 - 2017), YAMAHA WR 250 F (2007 - 2018), YAMAHA YZ 250 FX (2015 - 2022)

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