Vuelta Track/Fixie Cranks are designed to work with 108mm BB Spindle in most applications. Square taper bottom bracket required.Since 1991 Vuelta products have earned a well-deserved reputation as an international brand synonymous with quality, performance and value.  Whether it's our made-in-the USA chainrings, our newest chains, cranksets and saddles, or our latest wheel designs, our 19 years of experience helps ensure that each and every Vuelta product meets and exceeds the expectations of cyclists of all levels. Every product we make starts with thoughtful design, solid engineering, attention to detail, and a relentless dedication to excellence.  Using time tested manufacturing processes we deliver products that promise long service life and the highest performance possible. We take pride in everything we do, to make sure that our customers get the most performance and value possible from our products. Vuelta is the name that you can ride with confidence, today, tomorrow and beyond.