Wheels Manufacturing SOLO-SPEED Cog - 19t Fits SOLO-SPLINE SOLO-XD kits Purple MFPN=8021700340 You can be sure that

You can be sure that your repair will hold up even under the most extreme conditions

Flat-Forward platform allows ease of movement on the saddle

An additional mesh side pocket provides more space for smaller items

65 day flash run time up to 16 hours (day flash) color black weight 2

} Precision machined threaded aluminum cups with outboard bearings

Wheels Manufacturing SOLO-SPEED Cog - 19t Fits SOLO-SPLINE SOLO-XD kits Purple MFPN=8021700340 You can be sure thatCogs are designed with narrow wide alternating tooth pattern allowing for superior chain retention Cogs are optimized for use with Solo XD Carrier system only Will not work with 13spd Campagnolo chains or 12spd Shimano HG+ chains TECH SPECS model SOLO XD description SOLO XD replacement cog teeth 19 chain 9 12sp color purple