![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-BLK_PD1_1_{width}x.png?v=1604008094)
![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-BLK_PD3_1_{width}x.png?v=1604008094)
![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-BLK_PD2_1_{width}x.png?v=1604008094)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-BLK_PD4_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-BLK_PD5_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-BLK_PD6_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-BLK_PD7_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-PRP_PD1_1_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-PRP_PD3_1_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/products/M21_20U_LegionL40-PRP_PD2_1_{width}x.png?v=1712842672)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-PRP_PD4_{width}x.png?v=1712842686)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-PRP_PD5_{width}x.png?v=1712842686)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-PRP_PD6_{width}x.png?v=1712842686)
![Legion L40](http://www.mongoose.com/cdn/shop/files/M21_20U_LegionL40-PRP_PD7_{width}x.png?v=1712842686)
Specifications
Hi-Ten steel, BMX freestyle geometry, mid BB shell
FrameHi-Ten steel
Fork3-piece, tubular chromoly, 25T steel chainring
CrankKMC S1
ChainMid sealed bearing, 8-spline spindle
Bottom BracketSingle-speed, 9T cassette driver
Rear CogAluminum single wall, 24 mm ID, 36H
RimsSteel, ball bearing, 3/8 in axle, 36H
Front HubSteel, sealed-bearing cassette, 14 mm axle, 36H
Rear Hub14G, steel, black
Spokes20 in x 2.3 in, wire bead
TiresMongoose, nylon
PedalsU-brake, aluminum
BrakesMongoose, Hi-Ten steel, 28 in width, 8 in rise
HandlebarMongoose, threadless top load, 50 mm
StemThreadless, integrated 1-1/8", retainer bearing
HeadsetSteel, 250 mm, 25.4 mm
Seat PostMongoose Unifier, 1 piece rails
SaddleMongoose MushXL, 160 mm
GripsOne size
SizesGeometry & Sizing
![](https://cdn.shopify.com/s/files/1/0074/5432/6862/t/5/assets/a9e868ab0fcd--M-GeoDiagram-BMX.jpg?v=1681493363)