Originally Posted by BluesDawg

Keep in mind that Rivendell's sizing recommendations are for Rivendell bikes. Their 63 may not be dimensioned similar to other makers. Grant's sizing philosophy leans toward fitting riders on the tallest frame possible and working with bar height and stem length to work out the reach. I would not think of using Riv suggestions for another brand, but I would think hard about going against their recommendations on one of their bikes.