---
product_id: 72056722
title: "TrackStar SEG 21 Racing Engine - Replacement Cylinder Sleeve/Piston/Connecting Rod Set"
brand: "alturn usa"
price: "23 Lei"
currency: RON
in_stock: false
reviews_count: 1
url: https://www.desertcart.ro/products/72056722-trackstar-seg-21-racing-engine-replacement-cylinder-sleeve-piston-connecting
store_origin: RO
region: Romania
---

# Dual ball bearings High torque performance Turbo combustion chamber TrackStar SEG 21 Racing Engine - Replacement Cylinder Sleeve/Piston/Connecting Rod Set

**Brand:** alturn usa
**Price:** 23 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🏁 Rev Up Your Racing Game!

## Quick Answers

- **What is this?** TrackStar SEG 21 Racing Engine - Replacement Cylinder Sleeve/Piston/Connecting Rod Set by alturn usa
- **How much does it cost?** 23 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/72056722-trackstar-seg-21-racing-engine-replacement-cylinder-sleeve-piston-connecting)

## Best For

- alturn usa enthusiasts

## Why This Product

- Trusted alturn usa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** High-quality, high-speed bearings ensure longevity and durability.
- • **Effortless Setup:** No assembly required—just install and hit the track!
- • **Turbocharged for Maximum Power:** Feel the rush with a turbo combustion chamber designed for peak performance.
- • **Unleash Your Inner Speed Demon:** Experience the thrill of high-performance racing with the TrackStar SEG 21!
- • **Precision Engineering at Its Best:** Crafted with a dual ball bearing-supported crankshaft for unmatched reliability.

## Overview

The TrackStar SEG 21 Racing Engine Replacement Cylinder Sleeve/Piston/Connecting Rod Set is engineered for high performance and torque, featuring a turbo combustion chamber and dual ball bearing support. Designed for ages 8 and up, this set requires no assembly and is built with high-quality materials for lasting speed and reliability.

## Description

TrackStar SEG 21 Racing Engine replacement cylinder sleeve, piston and connecting rod. Specifications: Voltage: 1.3~1.5 Heat rating: Hot

## Features

- High performance and high torque ABC liner with 3 by-pass ports
- Dual ball bearing-supported crankshaft
- Turbo combustion chamber
- Double needle carburetor in aluminum-plastic composite construction
- High quality, high speed bearings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer recommended age | 8 years and up |
| Item model number | 21 Racing Engine - Cylinder Set |
| Language: | Basque |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| ASIN | B00IQ7IC7W |

## Images

![TrackStar SEG 21 Racing Engine - Replacement Cylinder Sleeve/Piston/Connecting Rod Set - Image 1](https://m.media-amazon.com/images/I/41jyzUNBtsL.jpg)

## Questions & Answers

**Q: Will this work with an os .21 rz-b?**
A: I am checking OS .21 rz-b engine galley parts,
it's okay fine , same as long stroke engine with 21 class cylinder.

**Q: Parts that can be used with trackstar .21 engine? (seg,sapar)**
A: yes, it can wroks with trackstar .21 engine, 100% fitting.

**Q: Does it fit on supar seg 21 as well?**
A: yes, this one is also fitting for supar seg 21 engine.

**Q: Would this fit a werks B5 ?**
A: I think no because the trackstar engine 3port and the  Werks engine 5port.
Trackstar engine stroke 16.80 bore 16.26
Werks b5 engine stroke 16.50 bore 16.30

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by A***R on Reviewed in the United Kingdom on 10 March 2016*

Its working great,lots of compression

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**Shop now:** [https://www.desertcart.ro/products/72056722-trackstar-seg-21-racing-engine-replacement-cylinder-sleeve-piston-connecting](https://www.desertcart.ro/products/72056722-trackstar-seg-21-racing-engine-replacement-cylinder-sleeve-piston-connecting)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-21*