The ATF bmx frame from S&M is the base model of all of S&M's lastest signature frames. The ATF (Alcohol, tobacco and firearms) uses S&M's standard heat treated supertherm tube set with a tapered and butted top tube for extra strength, dent resistant down tube, tapered rear stays with massive rear tire clearance and heat treated micro dropouts. S&M says the frame is a bit burlier and stronger than most of their frames but still only weights in a 4.7lbs. ###section### Product Specs MATERIAL: Chromoly HEAD TUBE ANGLE: 75° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 13.4" - 13.875" BB HEIGHT: 11.7" WHEEL SIZE: 20" STANDOVER HEIGHT: 8.5" DROPOUT SIZE: 14mm HEADSET TYPE: Integrated BB TYPE: Mid BRAKE MOUNTS: Removable (Sold separately) GYRO TABS: None WEIGHT: 4.65lbs (2.1kg) ###section### Product Highlights Neutral Geometry for responsiveness and stability Best suited to street and park riding High-quality chromoly construction Made in the USA Removable brake hardware (Brake hardware not included) ###shogun-image-section### Colour: Trans Red, Trans Gold, Trans Blue, Flat Black, Clear, Camo, Gloss White, Trans Green, White; Size: 21", 20.75", 20.5", 21.5", 21.25"