Race face sixc carbon riser bar race face sets another industry benchmark with the re introduction of sixc the worlds lightest and strongest carbon dh racelight fr crank and bar building on the unprecedented success of race face proprietary optimized carbon technology program sixc is poised to rewrite the rules in the 6 8 inch travel bike world sixc the c is silent represents the culmination of years of race face engineering in both carbon and all mountain products race face has create