Check the listing for details. ROTOR 30 MM Spacer Kit - 12-Piece Kit. Condition: New. Listed at 24.00 USD. ROTOR 30 MM Spacer Kit - 12-Piece KitThe ROTOR 30 MM Spacer Kit allows you to center and adjust any crankset that uses a 30 mm spindle. It consists of the following 12 pieces:2 x 11 mm spacers2 x 8 mm spacers2 x 3 mm spacers2 x 2 mm spacers4 x 0.5 mm spacers Why Buy from Power Meter City1. We ship fast! All orders ship on the same day your order is placed!2. We are an authorized ROTOR dealer and this product comes with a full warranty.3. Expert advice and customer service in case you need any help.4. We offer a free, 30-day return policy on new items. About our CompanyAt Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.