Giro Helmets - Giro Ionos Road Bicycle Helmet

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Giro Ionos Road Bicycle Helmets

Ionos is the most technologically advanced road cycling helmet Giro has ever created. Or anyone else. Our revolutionary in-mold composite sub-frame (I.C.S.) provides the strength to support 21 of the largest vents ever carved into a helmet. These massive vents, coupled with an intricate network of internal exhaust ports, create a cooling system we call Wind Tunnel ventilation, making Ionos the coolest, best-ventilated helmet anywhere... perfect for keeping riders like 2007 Tour de France champion Alberto Contador comfortable, even on the hottest days and over the most tortuous Alpine climbs.

Giro Ionos Road Bicycle Helmet - Astana Navy/Light Blue Ltd. Ed. In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Magenta/Black In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Garmin-Chipotle Blue/White Ltd. Ed. In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Matte Titanium In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Matte Black/White In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00 Rear view Top view

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Blue/Black In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Black/Carbon In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Cassie d'Epargne Red/Black In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - White/Silver In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $230.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $230.00 US

Giro Ionos Road Bicycle Helmet - Crystal Blue/White In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $184.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $184.00 US

Giro Ionos Road Bicycle Helmet - Discovery Blue/Black In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $184.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $184.00 US

Giro Ionos Road Bicycle Helmet - Rabobank Orange/Blue Limited Edition In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $184.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: Sold Out

Giro Ionos Road Bicycle Helmet - Yellow/White In-Mold Roc Loc® 4 In-Mold Carbon Reinforcement, Roll Cage™ 21 Wind Tunel™ vents, internal channeling Weight: 9.5 oz; 275 grams Sizing: Super Fit™ Small: 51-55 cm; 20"-21.75" Medium: 55-59 cm; 21.75" - 23.25" Large: 59-63 cm; 23.25" - 24.75" Glossary of Terms Your price: $184.00 Truly Free Shipping / No Handling Fee on orders over $100.00

Sizing Chart Size: Quantity: $184.00 US

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