![REAR SPROCKET STEEL 51 [JTR215.51] 420 MX-21551](http://www.smxoffroad.com/cdn/shop/files/stock76926_1.jpg?v=1769191666&width=120)
REAR SPROCKET STEEL 51 [JTR215.51] 420 MX-21551
![REAR SPROCKET STEEL 51 [JTR215.51] 420 MX-21551](http://www.smxoffroad.com/cdn/shop/files/stock76926_1.jpg?v=1769191666&width=3840)
REAR SPROCKET STEEL 51 [JTR215.51] 420 MX-21551
The Rear Drive Sprocket JTR215.51 with 51 teeth and 420 chain compatibility is designed for a variety of Honda off-road motorcycles, including CR80, CR85, and CRF150R models. Manufactured from high-quality C45 high-carbon steel and finished for durability, this sprocket offers a strong and reliable upgrade or replacement.
Features
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Made from C45 high-carbon steel
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Heat treated and sandblasted to reduce surface tension
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Finished in powder-coated black or bright zinc plated (BZP)
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Meets or exceeds motorcycle industry compound quality standards
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Direct OEM replacement
Specifications
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Tooth Count: 51
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Chain Size: 420
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Inner Diameter (I.D.): 110 mm
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Pitch Circle Diameter (PCD): 130 mm
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Mounting: 4 counter-sunk holes, 8.5 mm
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Finish: Silver
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Part No.: SR209-51.S.DR
Cross-Reference OEM Part Numbers
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JTR209.51
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MX-21551
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L17-0151
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MX-215451
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SR209-51.S.DR
Vehicle Fitments
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1985 Honda CR80 RF (49T Standard)
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1986 Honda CR80 RG (49T Standard)
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1987 Honda CR80 RH (49T Standard)
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1987–1991 Honda CR80 RJ, RK, RL, RM (49T Standard)
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1992–1995 Honda CR80 RN, RP, RR, RS (49T Standard)
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1996–2002 Honda CR80 RT, RV, RW, RX, RY, R-1, R-2 (49T Standard)
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1996–2002 Honda CR80 R2-T, V, W, X, Y, 1, 2 Expert (54T Standard)
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2003–2004 Honda CR85 R-3, R-4 (49T Standard)
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2003–2004 Honda CR85 RB-3, RB-4 Expert (55T Standard)
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2005–2007 Honda CR85 R-5, R-6, R-7 (49T Standard)
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2005–2007 Honda CR85 RB-5, RB-6, RB-7 Expert (55T Standard)
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2007–2018 Honda CRF150 R-7, R-8, R-9, A–J (50T Standard)
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2007–2018 Honda CRF150 RB-7, RB-8, RB-9, A–J (56T Standard)