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The ProTaper Yamaha YZ250 Rear Aluminum Sprocket - 50 Teeth - Black is a Race Spec (RS) series rear sprocket made from heat-treated 7075-T6 billet aluminum and CNC-machined in the USA. ProTaper cuts angled mud grooves into both sides of every tooth, which helps shed mud during riding and increases the tooth surface area that contacts the chain, extending sprocket life compared to designs without this feature. Built-in countersinks self-center the sprocket to the hub during installation without needing a separate hub center guide. This sprocket fits the YZ250 from 1999 through 2026, plus a wide range of other Yamaha two-stroke and four-stroke models and select Honda XR250R years.
A 50-tooth rear sprocket sits on the larger end of the rear sprocket range, lowering overall gearing for stronger acceleration out of corners at the cost of some top-end speed.
| Brand | ProTaper |
| MPN | 033220 |
| Position | Rear |
| Tooth Count | 50 Teeth |
| Material | Aluminum |
| Series | Race Spec (RS) |
| Color | Black |
Application data published by ProTaper for this part number. If your machine is not listed, contact us and we will confirm before you order.
| Make | Model | Years |
|---|---|---|
| Honda | XR250R | 1988 - 1995 |
| Yamaha | WR250F | 2001 - 2009, 2011 - 2013, 2015 - 2026 |
| WR400F | 1999 - 2000 | |
| WR426F | 2001 - 2002 | |
| WR450F | 2003 - 2009, 2011 - 2026 | |
| YZ125 | 1999 - 2026 | |
| YZ125 50th Anniversary Edition | 2024 | |
| YZ125 70th Anniversary Edition | 2026 | |
| YZ125 Monster Energy Yamaha Racing Edition | 2022 - 2023, 2025 | |
| YZ125X | 2020 - 2026 | |
| YZ250 | 1999 - 2026 | |
| YZ250 50th Anniversary Edition | 2024 | |
| YZ250 70th Anniversary Edition | 2026 | |
| YZ250 Monster Energy Yamaha Racing Edition | 2022 - 2023, 2025 | |
| YZ250F | 2001 - 2026 | |
| YZ250F 50th Anniversary Edition | 2024 | |
| YZ250F 70th Anniversary Edition | 2026 | |
| YZ250F Monster Energy Yamaha Racing Edition | 2021 - 2023 | |
| YZ250FX | 2015 - 2026 | |
| YZ250X | 2016 - 2026 | |
| YZ400F | 1999 | |
| YZ426F | 2000 - 2002 | |
| YZ450F | 2003 - 2026 | |
| YZ450F 50th Anniversary Edition | 2024 | |
| YZ450F 70th Anniversary Edition | 2026 | |
| YZ450F Monster Energy Yamaha Racing Edition | 2021 - 2023, 2025 | |
| YZ450FX | 2016 - 2026 |
Not every product runs through our fitment finder, and we would rather you confirm exact fitment than rely on a partial filter. Match the specifications against your machine or the part you are replacing, or contact us and we will confirm it for you.
Ask a Parts Specialist →| Brand | ProTaper |
|---|---|
| SKU: | 033220 |
| MPN | 033220 |
| UPC: | 887337307206 |
| Condition: | New |
| air_freight_prohibited | false |
| not_carb_approved | false |
| ltl_freight_required | false |
| prop_65 | Unknown |
| part_type | powersports |
| epa | N/A |
| carb_acknowledgement_required | false |
| regular_stock | t |
| units_per_sku | 1 |
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