28mm from under head, 12mm is threaded. Requires a 5/16" nut if your seat tube has no thread.
Bianchi Sprint Full Carbon 1.1/8" - 1.1/4" 28mm tires compatible For Rim Brake
For Dirt Bike Motocross Off Road 1 1/8" 28MM Motorcycle Handlebar Handle Fat Bar
1-1/8" 28mm Handlebar Chest Protector Pro Taper 2.0 Square Fat Bar Pad Black
1 1/8" 28mm Fat Handlebar For Honda CB1000R CB125R CB300R CB500F CB500X CRF1000L
1-1/8" 28mm Dirt Bike Handlebar Fat Bar For Yamaha YZ250F YZ250FX YZ450F YZ125
For Suzuki RMZ450 RMZ250 DRZ400S 1-1/8" 28mm Fat Handlebar Dirt Bike Handle Bar
