![Mongoose 20″ Legion L40 BMX Bikes [Black] (2017)](https://www.urbnbike.com/wp-content/uploads/2025/9/1758958755/mongoose-20-legion-l40-bmx-bikes-black-2017-1758958759.webp)
The Mongoose Legion L20 Freestyle BMX Bike is built with a 20" hi-ten top tube with a fork suited for smaller riders. It also holds aesthetical appeal with a detangler keeping all cables in place with-out mess.SPECIFICATIONS: FrameHi-Ten SteelForkHi-Ten St
The Mongoose Legion L20 Freestyle BMX Bike is built with a 20″ hi-ten top tube with a fork suited for smaller riders. It also holds aesthetical appeal with a detangler keeping all cables in place with-out mess.
| Frame | Hi-Ten Steel |
| Fork | Hi-Ten Steel |
| Drivetrain – crank | 1pc Forged Steel 170 mm, 25T steel chainring |
| 25T steel chainring | |
| Drivetrain chain | KMC Z410 |
| Bottom Bracket | American Loose Ball |
| Shifters | n/a |
| Cog Set | 9T cassette driver |
| Front Derailleur | n/a |
| Rear Derailleur | n/a |
| Wheel Size | 20″ |
| Rims | Alloy single wall 36H |
| Front Hub | 36H Alloy, 3/8″ axle |
| Rear Hub | 36H, 9T Cassette, 14 mm axle,4 Sealed bearing, AL Shell |
| Spokes | 14G Black |
| Tyres | 20 x 2.25 |
| Pedals | Plastic body with 1/2″ axle |
| Brakes | Alloy U-Brake |
| Front Brake | N/A |
| Rear Brake | Alloy U-Brake |
| Brake Levers | Alloy |
| Handle Bars | Mongoose Hi-Ten 8″ |
| Stem | Mongoose Front Loader 48mm Ext.; quilled |
| Head Set | Threaded, 1″ |
| Seat Post | Steel, 25.4 |
| Saddle | Mongoose Slim Railed |
AVAILABLE ONLINE & IN-STORE
Additional Information on BMX Bikes can be found here
![Forgotten Curse 20.65inTT 20″ [Neon Yellow W/Whitewall Tyres]](https://www.urbnbike.com/wp-content/uploads/2025/9/1758958341/forgotten-curse-20-65intt-20-neon-yellow-w-whitewall-tyres-1758958344.webp)
Reviews
There are no reviews yet.