Mongoose Diagram BMX Freestyle Bike - 20-Inch Wheels

Changes made to this year’s Diagram solidify this bike as our top free­style offering. This bike is all about the details, featuring a full Cromo front triangle, sealed 9T cassette driver, sealed mid BB, 8” tall bars, doublewall rims, Alienation tires, Pipeline cables and PC pedals. FRAME Cromo Front Triangle FORK Cromo Steerer CRANKSET / CHAINWHEEL 3pc Tubular Cromo, 175mm, 25T Alloy chainring BB Mid Sealed Bearing 8 spline PEDALS Wellgo Poly Carbon FREEWHEEL 9t Cassette, loose ball CHAIN KMC Z-510 RIMS Goliath double wall 36H TIRES Alienation Graffiti F- 2.2" R- 2.0" FRONT HUB 36H Alloy, 3/8" axle REAR HUB 36H Alloy, 14mm Cromo axle loose ball cassette SPOKES ED Black Steel FRONT BRAKE Tektro FX340 Alloy U-brake REAR BRAKE Tektro FX340 Alloy U-brake BRAKE LEVERS Rush RX402 hinged BRAKE ROTOR Pro Rush with Pipeline cable HANDLEBAR Mongoose Hi-ten 8" STEM Mongoose Front Load 50mm Ext. GRIPS Mongoose Kraton HEADSET 1-1/8" Integrated (Campy fit) SADDLE Mongoose Slim SEAT POST 25.4 straight Alloy, with Micro Adjust SEAT CLAMP integrated EXTRAS 1 pair axle pegs

One of Mongoose's top freestyle BMX bikes, the 20-inch Diagram is all about the details. The Diagram is equipped with a CroMo front triangle frame, a CroMo steerer fork, a sealed mid BB, 20-inch Alienation Graffiti tires, and Goliath double-wall rims. As a result, the bike holds up beautifully while you rip up the park performing freestyle tricks. Other details include a Mongoose 8-inch hi-ten handlebar, a Mongoose slim saddle, Tektro alloy U-brakes, Mongoose Kraton grips, and a pair of axle pegs.

Specifications

• Frame: Rigid
• Fork: CroMo steerer
• Rims: Goliath double-wall 36H
• Spokes: ED black steel
• Tires: 20-inch Alienation Graffiti, 2.2 inches (front), 2 inches (rear)
• Pedals: Wellgo poly carbon
• Crankset: 3-piece tubular CroMo, 175mm, 25T alloy chain ring
• Bottom bracket: Mid-sealed bearing, 8 spline
• Chain: KMC Z-510
• Cog set: 9t cassette, sealed
• Handlebar: Mongoose hi-ten, 8 inches
• Stem: Mongoose front-load 50mm ext.
• Headset: 1-1/8-inch integrated (Campy fit)
• Brake rotor: Pro Rush with pipeline cable
• Brake levers: Rush RX402 hinged
• Saddle: Mongoose slim
• Seat post: 25.4mm straight alloy with micro-adjust
• Extras: 1 pair axle pegs
• Front hub: 36H alloy, 3/8-inch axle
• Rear hub: 36H alloy, 14mm CroMo axle with loose-ball cassette
• Front brake: Tektro FX340 alloy U-brake
• Rear brake: Tektro FX340 alloy U-brake
• Grips: Mongoose Kraton
• Seat clamp: Integrated

About Mongoose
Founded in 1974 in a Southern California garage, Mongoose has always been an innovator. From the company's initial cast-magnesium MotoMag wheels to its current crop of BMX, mountain, and pavement bikes, the Mongoose name has been synonymous with bicycle performance. Mongoose builds specifically for riders, which is why the company's BMX designers aren't wasting time watching reruns on ESPN2. Instead, they're constantly testing their new designs at the park, on the track, and on the hill. This continuous experimentation is what drives Mongoose to cook up things like the Front Porch head tube, which lets you fine-tune the handling on Black Diamond series mountain bikes, or Freedrive suspension technology, which eliminates pedal bob and provides a super-efficient full suspension. Mongoose bikes don't just push the limits; they set new ones.