Machined from 7075-T6 aluminum. Have 5.5mm thickness for more strength. The teeth offset of 1mm provide better chain alignment and reduce wear. 22mm bore with 19mm adapters included.

• Teeth: 1/8"
• Bore: 22mm
• Thickness: 5.5mm
• Spindle Size: 22mm19mm adapters included)
• Material: 7075-T6 aluminum
• Weight: 2.7oz/77grams
• Teeth: 25T