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          |  On first inspection, 
            the Impulse P21 is a refined and elegant city bike, with all the fittings, 
            including fenders, rack, chainguard and even a single shifter that 
            controls all 21 gears. But lurking underneath this civilized exterior 
            is a performance bike that's ready for hard and fast weekend rides 
            or heavy touring. The key is the SRAM 
            DualDrive drivetrain that serves up 21 widely spaced gears - enough 
            for just about any type of terrain. The SuperLite 
            4130 chromoly frame is extremely stiff for excellent power transfer, 
            but compliant enough for comfort. If you want one bike for all different 
            kinds of riding, the Impulse P21 deserves a serious look.  | 
         
         
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