so replacements (sold separately) are easy to stock

lightweight 48-spline CrMo spindle ensure the Metron Crankset is going to stand up to anything you can throw at them

a taller head tube

The help keep the bar ends hidden and out of the way for less pain on bar spins

whether you're just starting out or you're strapped for cash and need a replacement

GT Speed Series Expert XL BMX Race Bike Colour:Black Fade so replacements (sold separately) areThe GT Speed Series Expert XL BMX Race Bike was inspired by the Speed Series Pro Models featuring reverse rear dropouts for quick gear changes. This model is purpose designed and spec'd to be incredibly lightweight offering maximum performance to meet each racer's needs. The Expert XL model is the perfect size for riders between 5' 2" 5' 8". ###section### Product Specs FRAME MATERIAL: Alloy WHEEL SIZE: 20" TOP TUBE LENGTH: 20" CHAIN STAY LENGTH: 13.