GT Overdrive CNC Sprocket

With the GT Overdrive CNC Sprocket at J&R Bicycles GT takes the mid-school classic Overdrive sprocket and gives it an upgrade with materials and tech. GT has been in the business since the 70s and they know how to adapt to modern styles and preferences. This sprocket is made of strong CNC machined 1/4" thick 6061 aluminum alloy so you get durability without much added weight.

• Sizes: 25T, 28T, 33T, 36T
• Teeth: 1/8"
• Material: CNC'd 1/4" 6061 Aluminium
• 15/16” (24mm) center bore (19/22mm steel hat washers included)
• Compatible with 19mm, 22mm and 24mm spindles.