Check the listing for details. SRM Origin 30 MM Road Spindle. Color: Silver, Condition: New. Listed at 140.00 USD. SRM Origin 30 MM Road SpindleOne of the cool things about the SRM Origin power meter is that you have your choice of spindle sizes. This makes the power meter compatible with virtually any frame on the market.This listing is for a 30 MM road spindle. In the BoxSRM Road SpindleMaterial: AluminumSize: 30 mmWeight: 118 gramsPlease note, that the SRM Origin Lock Ring Tool (needed for installation of this spindle), as well as the SRM Origin Lock Ring and SRM Origin Crank Caps are sold separately. 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 SRM 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.