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 tyre 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: Full 4130 Chromoly HEAD TUBE ANGLE: 75° SEAT TUBE ANGLE: 71° CHAIN STAY LENGTH: 13.4" BB HEIGHT: 11.7" WHEEL SIZE: 20" STANDOVER HEIGHT: 8.5" DROPOUT SIZE: 14mm HEADSET TYPE: Integrated BB TYPE: Mid BRAKE MOUNTS: Removable GYRO TABS: None WEIGHT: 4.7lbs ###section### Product Highlights Neutral Geometry for responsiveness and stability Great all round frame for all types of riding Gusseted tubing for added strength Dent resistant down tube Made in the USA ###shogun-image-section### Colour: Trans Green, Clear, Camo, Gloss White, Flat Black, Trans Blue, White, Trans Red, Trans Gold; Size: 20.5", 21.5", 20.75", 21.25", 21"