Halo Fixed Cog 1/8" 18t Silver CheckoutTitle=Industry Nine iRiX Spacer Kit Spherical Tungsten features a proprietary

Spherical Tungsten features a proprietary hollow core to help reduce vibrational friction caused by high torque pedaling

you can use an optical adapter that you can have adjusted to fit your eyeglasses prescription (can be purchased separately)

e-Bike approved No Impact Protection System MIPS Size S Visor No Integrated Light No Primary Color Green Helmet sizing in cm 51 - 55cm Misc Moss Green

Calipers are sold per wheel

Halo Fixed Cog 1/8" 18t Silver CheckoutTitle=Industry Nine iRiX Spacer Kit Spherical Tungsten features a proprietaryCNC machined steel track cog, 1. 37"x24tpi (right handed) thread, 1 2" x 1 8" teeth Choose aluminum or steel lockrings, sold separately (HL 3891 or HL 3899) Model Fixed Cog Description Threaded Track Cog Hub 1. 37"x24tpi Teeth 18 Chain 1 8" Color Silver