The Aether™ Spherical combines airy, open design with a revolution in rotational energy management to advance head protection for cyclists. Inside the Aether, a dual-density EPS foam liner helps to manage a wide range of impact energies, while also boasting deep internal channelling to provide cooling airflow.Our proprietary Spherical Technology™ is integrated between the layers of EPS foam—instead of against the rider’s head—giving riders the benefits of MIPS without any obstruction to comfort or cooling power. Outside, a sleek six-piece shell forms a stunning silhouette around the massive vents, which get added structural reinforcement via a shatter-resistant AURA reinforcing arch. The final touch is our Roc Loc® 5+ Air fit system, featuring three-way fit tuning, that allows easy adjustment in seconds for the ultimate in comfort. Features: Spherical Technology MIPS® brain protection system Progressive Layering AURA reinforcing arch Nanobead™ EPS foam Eyeglass grippers Ionic+™ anti-microbial padding Construction: Independent, In-Mold liners with spherical ball-and-socket design In-Mold construction with progressive layering Six-piece polycarbonate Hardbody™ AURA reinforcing arch Fit System: Roc Loc® 5+ Air Ventilation 21 Wind Tunnel™ vents with internal channelling
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR, 10mm bolt in, 10 thro and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsSix bolt disc fittingAluminium or steel FreehubWeight: 257g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsCentre lock disc splineAluminium or steel FreehubWeight: 279g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR
The RS4 Road Rear Hub is the perfect combination of fantastic durability and a light weight construction, giving you the most versatile and serviceable hubs on the planet.Specifically designed for road use with reduced drag ratchet mechanismConversions available in QR and 12mmMachined from forged 2014 T6 aluminium billetAvailable in 135mm & 142mm widths, 24h only2 pawl ratchet with 44-point engagement (8 deg)Machined from forged 2014 T6 aluminium billet and with sealed stainless-steel cartridge bearings throughout, this hub has unsurpassed reliability. The hub uses a two-pawl ratchet mechanism creating a drive with significantly less drag and as a result, a quieter freehub.Stainless Steel BearingsCentre lock disc splineAluminium or steel FreehubWeight: 279g (Shimano)Please note: Steel freehub uses 4 pawl Pro 4 freehub body & Campagnolo only available in QR