Wheels Manufacturing SOLO-SPLINE Single Speed Conversion Kit The Wheels Manufacturing SOLO-SPLINE is designed specifically for Shimano Micro Spline compatible hubs. Features Designed specifically for Shimano Micro Spline compatible hub bodies Includes adjustable spacers to fine-tune chainline Narrow-wide tooth pattern cog for superior chain hold At only 101g SPECIFICATIONSVariant MFG#BLKSOLO-SPLINE-1Blue SOLO-SPLINE-6Green SOLO-SPLINE-8Orange SOLO-SPLINE-3Purple SOLO-SPLINE-7Red SOLO-SPLINE-2Teal SOLO-SPLINE-5 | Wheels Manufacturing | Solo-Spline Single Speed Conversion Kit Blue