# TBParts - 20MM-24MM Intake Kit for RACE head Z50 CRF50 XR50 & Pit bikes

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- **Breadcrumbs:** [Home](https://tboltusa.com/store/index.md) > [Pit Bike Engine Parts](https://tboltusa.com/store/pit-bike-engine-parts-c-51.md) > [Carb Intakes](https://tboltusa.com/store/pit-bike-engine-parts-carb-intakes-c-51_527.md) > TBParts - 20MM-24MM Intake Kit for RACE head Z50 CRF50 XR50 & Pit bikes
- **Web page:** [this page on tboltusa.com](https://tboltusa.com/store/tbparts-20mm-24mm-intake-kit-for-race-head-z50-crf50-xr50-pit-bikes-p-741.html)
- **Markdown:** [this page as markdown](https://tboltusa.com/store/tbparts-20mm-24mm-intake-kit-for-race-head-z50-crf50-xr50-pit-bikes-p-741.md)
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All prices are in US dollars (USD). Shipping and any tax are worked out at checkout.

## Summary

- **Part number:** TBW0273
- **Price:** $39.99 USD
- **Stock:** 2 left.
- **Product id:** 741
- **Product last changed:** 2026-09-18

## What it fits

The store lists a part under each bike or engine model it is meant for (the categories below) and may name models in the description. Do not assume it fits a bike or engine that is not named here; ask the store first.

- [Pit Bike Engine Parts > Carb Intakes](https://tboltusa.com/store/pit-bike-engine-parts-carb-intakes-c-51_527.md)
- [TB Parts > CRF50 XR50 Z50 88-Up > 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)

Where a fitment line says "All", it means all years of the model named on that line, not all bikes.

## Description (the store's own text)

This 20mm Intake Kit for Race Head works perfectly with many 20mm-24mm carbs.

*Meets or exceeds OEM specification*

**Application:**

- CRF50 XR50 with Race Head
- Chinese e22 Heads
- 20mm-24mm carbs
- XR70 CRF70 (running aftermarket carb)
- Z50 CT70 (running aftermarket carb)

**Kit Includes:**

- Ported intake for the TB race head
- Heatstop
- Gaskets
- Mounting bolts/wrench

**Specifications:**

- Intake ID at head side - 24mm
- Intake ID at carb side - 21mm

## Shipping and returns

- Flat rate shipping is $8 for parts orders under $75 and free for most parts orders over $75, within the continental 48 states. Heavy items (engines, complete bikes, suspension) are excluded.
- Full shipping policy: [Shipping policies](https://tboltusa.com/store/shipping-policies-i-6.md)
- Returns: the store's own policy page says how returns, exchanges and cancellations work. Please read it before buying: [Returns, Exchanges and Cancellations](https://tboltusa.com/store/returns-exchanges-and-cancellations-i-11.md) The page begins: "All products returned to T Bolt USA must be reviewed and approved."

## How to buy

For a person: open [TBParts - 20MM-24MM Intake Kit for RACE head Z50 CRF50 XR50 & Pit bikes](https://tboltusa.com/store/tbparts-20mm-24mm-intake-kit-for-race-head-z50-crf50-xr50-pit-bikes-p-741.html), choose any options, press "Add to Cart", then check out from the cart. Payment is only ever entered by the person, on tboltusa.com's own checkout pages.

For an AI assistant building a cart: `https://tboltusa.com/cart/new/item/741/qty/1` starts one with this product (the first value of every option, qty 1), `https://tboltusa.com/cart/<cart_code>/add/item/741/qty/1` adds it to a cart you already started, and `https://tboltusa.com/cart/<cart_code>/zip/<ZIP>` gives the shipping options to a US ZIP code. They answer JSON: give your customer the newest `cart_link`, a public cart link, safe to share.

Or give the person one link that fills their own cart when they open it (a public cart link, safe to share; the first value of every option, qty 1): [Put TBParts - 20MM-24MM Intake Kit for RACE head Z50 CRF50 XR50 & Pit bikes in my cart](https://tboltusa.com/cart/open/item/741/qty/1)

Payment: all major credit cards, PayPal, Apple Pay and Google Pay. Money orders by arrangement.

Cart: [Shopping cart](https://tboltusa.com/store/shopping_cart.php)

## Photos

- [Photo 1](https://tboltusa.com/store/img/p/741/tbparts-20mm-24mm-intake-kit-for-race-head-z50-crf50-xr50-pit-bikes-1.jpg)

## Support

Since 2004, every purchase from TBolt USA includes access to technical support from our staff of experts and our online [Pit Bike Technical Info Database](https://tboltusa.com/store/tbolt-usa-pit-bike-minimoto-technical-info-database-tech-15.md)!

We have all necessary support parts on hand.

*Most* orders ship same, or next business day, unless otherwise noted above.