Rounding out the Annex line is the Annex Pro XL model. The Pro XL has all the same qualities and features as the Pro model but the Pro XL frame has a slightly larger top tube length coming in at 21" to accommodate larger riders. With 175mm 3 piece chromoly cranks and full size 20" 36 spoke alloy wheels, the Pro XL is strong and versatile for riding at the BMX track or cruising through the neighborhood.