READY TO SHIP MTB Chainrings Extralite - Octaramp chainring 22T 16g EXTCHA0002030 €24.00 8mm holes. Fits crankset with 4 male bolts screwed in from internal sideMaterial: Ergal 7075T6.Construction: hyper accurate cnc.Ramps: 8 cnc with unique 15° angle.Machined Teeth: 24 external, 12 internal.Bcd (Bolt Circle Diameter): standard 64 mm 4 bolts.Finishing: hard anodized with machined sides.Graphics: laser etched. Weight: 16g Add to cart