Prestacycle UniBlock PRO Cassette - 11-Speed HG 12 Interface HG 12/11/10 Freehubs 11-34t Silver CheckoutTitle=SRAM Guide RS Lever Internals Kit Nightrider Lumina Pro Series features

Nightrider Lumina Pro Series features 5 light levels plus 3 Daylight Flash modes and customizable light output and flash patterns by way of NiteRider App

} Leak-proof and easy to fill with SLIDE SEAL PLUG-N-PLAY allows quick removal of the hose Free from BPA and PVC

EXO Protection to reduce the chance of flats from cuts or abrasions

4 ISO 584 Bead TBLS - Fold Tread/Sidewall Color Bk/Blk PSI 50 Weight (Grams) 1150 TPI 60 Durometer Features RSR/AGC Reflective Sidewall No

Prestacycle UniBlock PRO Cassette - 11-Speed HG 12 Interface HG 12/11/10 Freehubs 11-34t Silver CheckoutTitle=SRAM Guide RS Lever Internals Kit Nightrider Lumina Pro Series featuresPrestacycle UniBlock PRO Cassettes are machined from a single solid block of cold forged Chrome Molybdenum alloy steel then heat treated tumble finished and electroplated for added durability low friction operation and longer service life. The UniBlock PRO cassettes feature ARC shifting tooth profile technology that provides the fastest smoothest possible shifting to all systems while minimizing the impact to power delivery. Single block design offers