If you’re upgrading or maintaining a motorized bicycle with a 49cc to 80cc 2-stroke engine, a reliable pull start kit is essential for quick, hassle-free starts. This guide highlights five widely used pull start assemblies designed to fit a range of engine sizes, from 49cc to 80cc. Each option offers durable construction and straightforward installation to help keep your ride ready. Below you’ll find quick-fit details and a buying table to compare core specs at a glance.
| Product | Brand | Fitment |
|---|---|---|
| Alloy Pull Start Starter Starters Assembly | Generic | 49cc–80cc 2-stroke |
| Black Alloy Starter Pull Start Starter for 49cc–80cc | JSCJCAS Store | 49cc–80cc 2-stroke |
| Alloy Pull Start Starter Starters 49cc–80cc | QAZAKY Store | 49cc–80cc 2-stroke |
| AlveyTech Recoil Pull Start Assembly | AlveyTech Store | 48cc–80cc 2-stroke |
| Square Updated Pull Start Assembly Kit | CDHPOWER Store | 46cc–80cc 2-stroke |
These products cover common sizes and configurations, including alloy construction for durability, complete assemblies with pawl and cord, and housing designed to withstand regular start cycles. When choosing, confirm the engine displacement you’re targeting and measure mounting fitment to ensure compatibility with your specific motorized bicycle kit.
Alloy Pull Start Starter Assembly (49cc–80cc)

This alloy pull start kit is designed for a range of 2-stroke engines from 49cc to 80cc. The durable alloy construction combines lightweight design with strength for reliable starts. Ideal for motorized bicycles requiring a straightforward start mechanism that holds up under frequent use. Size measures approximately 10 cm by 7.5 cm by 4.5 cm.
Black Alloy Starter Pull Start for 49cc–80cc

Featuring a black alloy body, this pull-start is compatible with 49cc, 60cc, 66cc, 70cc, and 80cc 2-stroke engines. It includes one alloy pull start starter. Prospective buyers should verify the exact size prior to purchase to ensure the unit matches their engine’s mounting footprint and cable length.
Alloy Pull Start Starter 49cc–80cc

This kit uses 100% alloy for a sturdy pull-start mechanism. It is designed to fit 49cc, 50cc, 60cc, 66cc, 70cc, and 80cc 2-stroke engines. The compact dimensions (about 3.93″ x 2.95″ x 1.77″) balance durability with a compact footprint, facilitating installation on many common motorized bicycle builds.
AlveyTech Recoil Pull Start Assembly

The AlveyTech pull start assembly includes a durable cast metal housing, pawl, handle, and cord, delivering a complete, ready-to-install solution for 48cc to 80cc 2-stroke bicycle engines. The robust construction aims to maintain performance under regular use and challenging riding conditions, with a design focused on reliable engagement and smooth starts.
Square Updated Pull Start Assembly Kit

Designed for 2-stroke gas engine kits in 48cc, 66cc, and 80cc configurations, the Square Updated Pull Start Assembly provides an easy-start feature with a simple pull mechanism. The kit is suitable for users assembling or upgrading a motorized bicycle engine, with emphasis on straightforward operation and compatibility with standard 2-stroke components.
Buying Guide
- Engine compatibility: Confirm the displacement range (e.g., 49cc–80cc or 48cc–80cc) matches your engine. Some kits explicitly cover a narrow band, while others are broader.
- Construction materials: Alloy and cast metal housings offer durability but consider weight and corrosion resistance for outdoor use.
- Complete assembly: Look for kits that include the cord, pawl, handle, and mounting hardware. A complete kit saves time and reduces compatibility issues.
- Mounting footprint: Verify dimensions (length, width, height) and mounting hole spacing to ensure proper fit on your frame and engine mount.
- Cable length and pull feel: Longer cords can ease pulling on larger engines; a smooth, consistent pull reduces starting effort and wear.
- Test and warranty: If possible, choose products from brands with clear return policies or warranties, especially for replacement parts.
- Installation considerations: Some kits require basic tools and minor engine disassembly. Ensure you have the appropriate experience or seek professional installation if needed.
- Replacement parts availability: Check if pawls, cords, or handles can be sourced individually in case of wear or damage.