Academy inspire 18 bmx bikethe 18 academy inspire is a great beginners bike specially designed for 9 12 year old kids it features a part crmo frame and a top load stem with a sealed bottom bracket and rear hub everything the budding bmxer needs to get inspiredfeatures frameacademy inspire 18 crmo downtube 18 0 tt 12 0 cs 75 0 ha 71 st mid bb integrated headset forksacademy inspire 18 tapered legs handlebarsacademy crmo 8 rise 26 wide gripsacademy pro headsetin