The Mongoose Legion L18 BMX Bike in black features an 18 inch Hi-Ten steel frame with BMX freestyle geometry and a matching Hi-Ten steel fork. Its single speed drivetrain uses a 1 piece forged steel crank with a 25T steel chainring, KMC S1 chain and a single speed 9T cassette driver. The bike rolls on aluminum single wall rims with a 24mm inside diameter, 36 hole construction and 14G black steel spokes, paired with 18 x 2.3 inch wire bead tyres. A Mongoose threadless top load stem with 40mm extension connects to the Hi-Ten steel handlebar, which measures 25.25 inches wide with a 7 inch rise, and Mongoose Zig 130mm grips. Braking is handled by an aluminum U brake, while the headset is a 1-1/8 inch external threadless design with retainer bearings. The bike includes a steel 150mm seat post, Mongoose saddle with steel rails, nylon pedals and steel hubs. An American loose ball bottom bracket completes the setup. The frame material is steel.
The Mongoose Legion L18 BMX Bike in black features an 18 inch Hi-Ten steel frame with BMX freestyle geometry and a matching Hi-Ten steel fork. Its single speed drivetrain uses a 1 piece forged steel crank with a 25T steel chainring, KMC S1 chain and a single speed 9T cassette driver. The bike rolls on aluminum single wall rims with a 24mm inside diameter, 36 hole construction and 14G black steel spokes, paired with 18 x 2.3 inch wire bead tyres. A Mongoose threadless top load stem with 40mm extension connects to the Hi-Ten steel handlebar, which measures 25.25 inches wide with a 7 inch rise, and Mongoose Zig 130mm grips. Braking is handled by an aluminum U brake, while the headset is a 1-1/8 inch external threadless design with retainer bearings. The bike includes a steel 150mm seat post, Mongoose saddle with steel rails, nylon pedals and steel hubs. An American loose ball bottom bracket completes the setup. The frame material is steel.
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The lowest price for right now is , compared across 13 retailers.
Mongoose Legion L18 BMX Bike
The Mongoose Legion L18 BMX Bike in black features an 18 inch Hi-Ten steel frame with BMX freestyle geometry and a matching Hi-Ten steel fork. Its single speed drivetrain uses a 1 piece forged steel crank with a 25T steel chainring, KMC S1 chain and a single speed 9T cassette driver. The bike rolls on aluminum single wall rims with a 24mm inside diameter, 36 hole construction and 14G black steel spokes, paired with 18 x 2.3 inch wire bead tyres. A Mongoose threadless top load stem with 40mm extension connects to the Hi-Ten steel handlebar, which measures 25.25 inches wide with a 7 inch rise, and Mongoose Zig 130mm grips. Braking is handled by an aluminum U brake, while the headset is a 1-1/8 inch external threadless design with retainer bearings. The bike includes a steel 150mm seat post, Mongoose saddle with steel rails, nylon pedals and steel hubs. An American loose ball bottom bracket completes the setup. The frame material is steel.
The Mongoose Legion L18 BMX Bike in black features an 18 inch Hi-Ten steel frame with BMX freestyle geometry and a matching Hi-Ten steel fork. Its single speed drivetrain uses a 1 piece forged steel crank with a 25T steel chainring, KMC S1 chain and a single speed 9T cassette driver. The bike rolls on aluminum single wall rims with a 24mm inside diameter, 36 hole construction and 14G black steel spokes, paired with 18 x 2.3 inch wire bead tyres. A Mongoose threadless top load stem with 40mm extension connects to the Hi-Ten steel handlebar, which measures 25.25 inches wide with a 7 inch rise, and Mongoose Zig 130mm grips. Braking is handled by an aluminum U brake, while the headset is a 1-1/8 inch external threadless design with retainer bearings. The bike includes a steel 150mm seat post, Mongoose saddle with steel rails, nylon pedals and steel hubs. An American loose ball bottom bracket completes the setup. The frame material is steel.
The all-time low was $321.83 on 19 Sept 2026 — today's price is 21% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 03:18:29
Mongoose Legion L18
Delivery between 9–17 Nov $9.50
Mongoose Legion L18
Free delivery between Fri – Mon
Mongoose Legion L18 BMX Bike Black | Steel Frame/ Steel Fork | 18" Wheel Size | Rim Brake
Delivery $77
18" Mongoose Legion L18 (2025) Kids BMX Bike | Ivanhoe Cycles
Delivery between 10–18 Nov $10
Legion L18 BMX Bike
Mongoose 18 Legion L18 Black
Delivery $14.95
2025 Mongoose Legion L18 | ABC Bikes
Mongoose Legion L18
Mongoose Legion L18 18 Inch BMX Bike Black | Hi-Ten Steel Frame | Single Speed | Aluminum U-Brake
Delivery between 7–16 Nov $95
Old School BMX Legion L18 Black by Mongoose
Delivery between 7–16 Nov $95
| Brand | Mongoose |
| Frame Material | Steel |
| Type | BMX |
| Wheel Size | 18 inches wheels |
| Number of Speeds | 1 speed |
Mongoose Legion L18
Delivery between 9–17 Nov $9.50
Mongoose Legion L18
Free delivery between Fri – Mon
Mongoose Legion L18 BMX Bike Black | Steel Frame/ Steel Fork | 18" Wheel Size | Rim Brake
Delivery $77
18" Mongoose Legion L18 (2025) Kids BMX Bike | Ivanhoe Cycles
Delivery between 10–18 Nov $10
Legion L18 BMX Bike
| Brand | Mongoose |
| Frame Material | Steel |
| Type | BMX |
| Wheel Size | 18 inches wheels |
| Number of Speeds | 1 speed |
