# CRF50 XR50 Z50 Big Bore and Stroker kits 1988 UP

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- **Breadcrumbs:** [Home](https://tboltusa.com/store/index.md) > [TB Parts](https://tboltusa.com/store/tb-parts-c-68.md) > [CRF50 XR50 Z50 88-Up](https://tboltusa.com/store/tb-parts-crf50-xr50-z50-88-up-c-68_73.md) > CRF50 XR50 Z50 Big Bore and Stroker kits 1988 UP
- **Web page:** [this page on tboltusa.com](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-z50-big-bore-and-stroker-kits-1988-up-c-68_73_982.html)
- **Markdown:** [this page as markdown](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-z50-big-bore-and-stroker-kits-1988-up-c-68_73_982.md)
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Products are filed in categories. Most top categories split by bike or engine model; a product can be listed in more than one category.

## Next to this category

- [CRF50 XR50 Carb Kits and parts](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-carb-kits-and-parts-c-68_73_1046.md)
- [CRF50 XR50 Chassis Shifter Kicker throttle lever](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-chassis-shifter-kicker-throttle-lever-c-68_73_983.md)
- [CRF50 XR50 Clutch Kits and Parts](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-clutch-kits-and-parts-c-68_73_1045.md)
- [CRF50 XR50 Electrical](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-electrical-c-68_73_1047.md)
- [CRF50 XR50 Engine Covers & Dress Up Kits](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-engine-covers-dress-up-kits-c-68_73_1011.md)
- [CRF50 XR50 Engine parts](https://tboltusa.com/store/crf50-xr50-z50-88-up-crf50-xr50-engine-parts-c-68_73_996.md)

## Products

Showing 1 to 13 of 13 products (page 1 of 1).

- [TBParts - 88cc Big Bore Kit for Z50 CRF50 XR50 1988-Present](https://tboltusa.com/store/tbparts-88cc-big-bore-kit-for-z50-crf50-xr50-1988-present-p-759.md): part number `TBW0928`; $149.99 USD; 8 left
- [TBParts - Roller Rocker Race Head V2 108cc Big Bore Kit Z50 CRF50 XR50 & Pit bikes](https://tboltusa.com/store/tbparts-roller-rocker-race-head-v2-108cc-big-bore-kit-z50-crf50-xr50-pit-bikes-p-8607.md): part number `TBW9109`; $729.99 USD; 2 left
- [TBParts - Roller Rocker Race Head V2 108cc Big Bore w/ Mikuni VM26 Z50 XR50 & CRF50 1988-Present](https://tboltusa.com/store/tbparts-roller-rocker-race-head-v2-108cc-big-bore-mikuni-vm26-z50-xr50-crf50-1988-present-p-8738.md): part number `TBW9118`; $902.99 USD; 2 left
- [TBparts - Roller Rocker Race Head V2 88cc Big Bore Kit Z50 CRF50 XR50 & Pit bikes w/ Mikuni VM24 Carb](https://tboltusa.com/store/tbparts-roller-rocker-race-head-v2-88cc-big-bore-kit-z50-crf50-xr50-pit-bikes-mikuni-vm24-carb-p-8727.md): part number `TBW9115`; $774.99 USD; out of stock
- [TBParts - Roller Rocker Race Head V2 Kit for 88cc & 108cc Z50 CRF50 XR50 & Pit bikes](https://tboltusa.com/store/tbparts-roller-rocker-race-head-v2-kit-for-88cc-108cc-z50-crf50-xr50-pit-bikes-p-8600.md): part number `TBW9102`; $549.99 USD; 2 left
- [TBParts 88cc Big Bore Kit, Race Cam and 20mm Carb Kit for Z50 CRF50 XR50 88-Present](https://tboltusa.com/store/tbparts-88cc-big-bore-kit-race-cam-and-20mm-carb-kit-for-z50-crf50-xr50-88-present-p-396.md): part number `TBW0930`; $269.99 USD; out of stock
- [TBParts - Race Head Kit for 88cc For Z50 CRF50 XR50 & Pit bikes](https://tboltusa.com/store/tbparts-race-head-kit-for-88cc-for-z50-crf50-xr50-pit-bikes-p-45.md): part number `TBW0934`; $264.99 USD; in stock
- [TBParts - Race head Upgrade Kit For Z50 CRF50 XR50](https://tboltusa.com/store/tbparts-race-head-upgrade-kit-for-z50-crf50-xr50-p-2042.md): part number `TBW9005`; $209.99 USD; in stock
- [TBParts - Race Head V2 Upgrade Kit 88-99 Z50, 00-Present XR50/CRF50](https://tboltusa.com/store/tbparts-race-head-v2-upgrade-kit-88-99-z50-00-present-xr50crf50-p-9993.md): part number `TBW9103`; $549.99 USD; 2 left
- [TBParts - Race Head, 88cc Big Bore and 20mm Carb Kit for Z50 CRF50 XR50 CRF70](https://tboltusa.com/store/tbparts-race-head-88cc-big-bore-and-20mm-carb-kit-for-z50-crf50-xr50-crf70-p-883.md): part number `TBW0936`; $419.99 USD; in stock
- [TBParts - Stroker kit 1 108cc for Z50 CRF50 XR50 CRF70](https://tboltusa.com/store/tbparts-stroker-kit-108cc-for-z50-crf50-xr50-crf70-p-43.md): part number `TBW0966`; $189.99 USD; 4 left
- [TBParts - Stroker kit 2 108cc for Z50 CRF50 XR50 CRF70](https://tboltusa.com/store/tbparts-stroker-kit-108cc-for-z50-crf50-xr50-crf70-p-268.md): part number `TBW0967`; $352.99 USD; 3 left
- [TBParts - Stroker kit 3 108cc with Race Head for Z50 CRF50 XR50 CRF70](https://tboltusa.com/store/tbparts-stroker-kit-108cc-with-race-head-for-z50-crf50-xr50-crf70-p-269.md): part number `TBW0968`; $612.99 USD; 3 left

Stock: "in stock" = 9 or more, a number = that many left, "out of stock" = cannot be ordered now. "options" = choose options on the product page before it can go in the cart. Product links go to the markdown copy; for the web page change the ending .md to .html.

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