SE Racing Mini Ripper BMX Bike Description: The Mini Ripper's aluminum frame features an ultra-stiff bi-oval downtube, rectangular rear stays and 3D-forged dropouts. Add in the lightweight 6066 aluminum Landing Gear forks, Promax Impact Mini stem, Alienation Ankle Biter rims and new Vee Tire Co Speed Booster tires, and you have one of the lightest and fastest mini race bikes on the track at only 15.8 pounds! Specifications: Frame: Lightweight 6066 Aluminum Floval Tubing, Internally Machined Integrated Head Tube, Bi-Oval Down Tube, 3D-Forged Dropouts Fork: 6066 Alloy Landing Gear, Alloy Steerer Tube Headset: - Stem: Promax Impact Mini 1", 6061-T6 Aluminum, CNC Machined Hollowed Out Center, Lightweight External Cutouts, Hidden Top Cap, (40mm Reach) Bars: Alloy SE Mini Wing Bar, (20.5" Width) (2.5" Rise) (8deg Backsweep) (1deg Upsweep) Grips: Mini Grips Cranks: SE Racing 3-pc Alloy Crankset (145mm Length) (103mm Spindle Length) Bottom Bracket: Euro Sealed Bottom Bracket (30mm Hollow Alloy Spindle) Pedals: Wellgo Alloy Caged, Chromoly Axle Chainring: Alloy Chainring, (37T) (BCD 110mm) Chain: KMC Z1 Front Hub: Sealed Bearing Hollow Axle Alloy Hub (28H) Rear Hub: Sealed Bearing Hollow Axle Alloy Hub (28H) Cog: Cassette (14T) Front Rim: Alienation Ankle Biter Double Wall (28H) Rear Rim: Alienation Ankle Biter Double Wall (28H) Front Tire: Vee Tire Co. Speed Booster (20" x 1-1/8") Rear Tire: Vee Tire Co. Speed Booster (20" x 1-1/8") Seat: SE Racing Mini with Integrated Alloy Post Seat Post: Integrated Alloy (22.2mm) Seat Clamp: Alloy, (25.4mm Inner Diameter) Brake Lever: Promax SE-341, 2-Finger Alloy Brakes: Promax P-1 6061 T-6 Alloy V-Brake, Blue Pads, Slick Cable Extras: SE Chain Tensioner Color: - Weight: 15.8 lbs Geometry: Toptube Length: 17.5" Chainstay Length: 13.1" Headtube Angle: 73deg Seattube Angle: 71deg Bottom Bracket Height: 10.7" Standover: 21.5" Recommended Sizing Guide: 3'6" - 4'4" Note: To ensure that every component on your bicycle is working properly, we recommend that all bikes be assembled by a qualified ...