Serg is easily one of the most stylish riders on the planet and has been for donkeys. Why not spec up your rig like his? A couple of the boys here at LUXBMX have run a Sierra previously and we were absolutely hyped on them. Nice low BB, low standover and a decent booty on this thing makes it rip!The Sergio Layos' signature Sierra frame features internal and external gussets, multi-butted and tapered tubing, an Investment Cast seat post clamp with the Horizontal Cut System, removable EBS style brake mounts and Investment Cast Dropouts with integrated chain tensioners.• 100% Secure payment.• Products in stock delivered in 24 hours to 7 working days.• This product is covered with Lifetime Warranty.• EBS Brake kit NOT included.• Replacement stickers included. Tubing Material4130 CrMo / Japanese Sanko Triple ButtedHeadtube MaterialCNC Machined / 4130 CrMo / Heat TreatedBottom BracketCNC Machined / 4130 CrMo / Heat Treated / Mid BBDropouts MaterialInvest Casting / 4130 CrMo / Heat TreatedSeat Clamp MaterialInvest Casting / 4130 CrMo / Heat TreatedSeatstays Bridge MaterialInvest Casting / 4130 CrMo / Heat TreatedTop Tube20.6" / 21" / 21.4"Head Tube75ºSeat Tube71ºRear End13.6"Standover8.75"Bottom Bracket Height11.5"Head Tube Length113 mm / 4.45"Brake SystemEBS / ChainstaysWeight 21"2.200 kg / 4.85 lb