# TBParts - 141cc Big bore kit 14mm Pin

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All prices are in US dollars (USD). Shipping and any tax are worked out at checkout.

## Summary

- **Part number:** TBW9067
- **Price:** $163.99 USD
- **Stock:** Out of stock. It cannot be added to the cart right now. A person can ask to be emailed when it is back: [Get on the List](https://tboltusa.com/store/contact_us.php?pid=855&stockcheck=true) ([Contact us](https://tboltusa.com/store/contact_us.md)) This is a kit: the count is how many complete kits can be built from the parts on hand.
- **Reviews:** [4 reviews, average 5 of 5](https://tboltusa.com/store/reviews/tbparts-141cc-big-bore-kit-14mm-pin-pr-855.html)
- **Product id:** 855
- **Product last changed:** 2024-09-13

## 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.

- [Engines > Motoped Engine options](https://tboltusa.com/store/engines-motoped-engine-options-c-114_927.md)
- [Pit Bike Engine Parts > Lifan Kits](https://tboltusa.com/store/pit-bike-engine-parts-lifan-kits-c-51_102.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)

141cc High Compression Bore Kit - 120cc / 138cc Engines

*Meets or Exceeds OEM Specifications.*

**Key Features:**

- Lightweight all aluminum cylinder with steel liner (78mm tall)
- Cast in mounts on cylinder for aftermarket skid plates
- Oversized cooling fins on cylinder for efficient heat dissipation
- High compression 57mm piston with rings, pin, & clips (14mm wrist pin)
- Head and Base gasket kit

**Application:**

- SDG Pro mini
- Other Pitbikes and engines with 52.4 x 55mm engines with 14mm wrist pin
- 2018 Vader/Boom/Boadiao 125CC

This will make a huge difference in performance over your stock setup and is a very quick and easy upgrade.

NEW Bigger dome piston, for use with Lifan 27mm/23mm Heads and TB 30mm/23.5mm heads only

**Recommended:**

- Sta-bil fuel stabilizer - W-57-1129

**Kit Includes:**

- TBW0601 - 78mm tall Cylinder
- TBW0424 - Gasket set
- TBW0824 - Piston

**Note:** **This kit is NOT for 69mm tall cylinder engines and ONLY fits 78mm tall cylinder engines**

## 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

This item is out of stock, so it cannot go in the cart now (see Stock above).

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

## Photos

- [Photo 1](https://tboltusa.com/store/img/p/855/tbparts-141cc-big-bore-kit-14mm-pin-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.