Renthal 224U52053GPBK Ultralight Grooved 53T Rear Sprocket Black (520 Pitch) * Extreme Duty Valve Spring

* Extreme Duty Valve Spring Kit - Titanium Retainers -

* 1 Pair of WBC 1654 Speakers

this variant of the Velotura consists mainly of Night Eye™ fabric

• Fits FXS Blackline and FLS Slim 2011-2017

Renthal 224U52053GPBK Ultralight Grooved 53T Rear Sprocket Black (520 Pitch) * Extreme Duty Valve SpringRenthal UltraLight Rear Chainwheels are CNC machined in Manchester, UK from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer. With Renthal's combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see