
Specialized Propero III Road Helmet with ANGI
Specialized Propero III Road Helmet with ANGI
- Select size and colour for availability
The Details
Packed with an adundance of innovative features, the Specialized Propero III Road Helmet is perfect for anyone from top performing riders looking to gain an advantage in races to sportive riders looking to enhance their riding experience.
The Propero III offers maximum safety for riders with an ANGI crash sensor that, when linked up with Specialized’s iOS or Android app, will send a text message to your loved ones when a crash has been detected. It can also sync to Strava for excellent GPS-based activity tracking so that you can view your ride data after every ride. On top of that, the helmet has been designed with MIPS which reduces the transfer of rotational motion to your brain upon impacts so that you are less likely to suffer severe injuries if you suffer from a crash.
The road helmet also comes with a HairPort FSL II fit system with four height positions and a micro-adjustable dial so that you can adjust the helmet for the perfect fit. Furthermore, a 4th dimension cooling system with a Mega Mouthport as well as composite matrix internal reinforcement ensure excellent comfort whatever the weather.
Key features:
- ANGI crash sensor
- MIPS
- Highly-adjustable fit system
Our Verdict
The Specialized Propero III features innovative technology that ensures superb comfort and top quality safety.
Industry Reviews

"The mid-range Specialized Propero III with ANGI helmet provides a firm and comfortable fit alongside impressive ventilation and some innovative tech."

"The combination of superb safety features, ride performance, ease of use and good looks makes this a top player."
Key Specifications
- MIPS-equipped.
- Easy-adjust, HairPort FSL II fit system with four height positions and micro-adjustable dial.
- 4th Dimension Cooling System with Mega Mouthport for enhanced comfort.
- Composite matrix internal reinforcement allows larger vents for greater cooling.
- Soft 4X DryLite webbing material won’t stretch out with sweat or water.
- Tri-Fix web splitter for improved comfort and ease of strap adjustments
- ANGI
Sizing Information
Specialized Helmets Unisex Size Guide
Find the perfect fit with this Specialized size guide.
Gambit, Mode, Tactic, Airnet, Echelon II, Evade, Prevail II Vent, Propero III, Align II
Circumference (ins) | Circumference (cm) | Size |
20 - 22 | 51 - 56 | S |
21 3/4 - 23 1/2 | 55 - 60 | M |
22 1/4 - 24 3/4 | 58 - 63 | L |
Ambush and Ambush Comp
Circumference (ins) | Circumference (cm) | Size |
20 - 22 | 51 - 56 | S |
21 1/4 - 23 | 54 - 58 | M |
22 1/2 - 24 | 57 - 61 | L |
23 1/4 - 24 3/4 | 59 - 63 | XL |
Chamonix
Circumference (ins) | Circumference (cm) | Size |
20 1/2 - 22 | 52 - 56 | S/M |
22 - 23 1/2 | 56 - 60 | M/L |
Centro
Circumference (ins) | Circumference (cm) | Size |
20 - 22 1/2 | 56 - 60 | Unisize |
Delivery
Parts, accessories and clothing delivery - FREE over £30
Delivery for parts, accessories and clothing is free over £30 and £2.99 below that. We have a selection of premium delivery services available, including next day, AM, Saturday, timed delivery and local pickup services. Mainland UK only, some remote and off-shore areas or areas of Scotland may incur a surcharge. Delivery options and lead time estimates will be provided in checkout.
Click & Collect
Our Click & Collect service offers all the benefits of shopping online, combined with an award-winning retail experience in one of our stores. Simply order your items, select Click & Collect and pick up your item at a time that's convenient for you - our stores are open 7 days a week. Best of all, the service is completely free.
Reviews
Your Questions Answered
Packed with an adundance of innovative features, the Specialized Propero III Road Helmet is perfect for anyone from top performing riders looking to gain an advantage in races to sportive riders looking to enhance their riding experience.
The Propero III offers maximum safety for riders with an ANGI crash sensor that, when linked up with Specialized’s iOS or Android app, will send a text message to your loved ones when a crash has been detected. It can also sync to Strava for excellent GPS-based activity tracking so that you can view your ride data after every ride. On top of that, the helmet has been designed with MIPS which reduces the transfer of rotational motion to your brain upon impacts so that you are less likely to suffer severe injuries if you suffer from a crash.
The road helmet also comes with a HairPort FSL II fit system with four height positions and a micro-adjustable dial so that you can adjust the helmet for the perfect fit. Furthermore, a 4th dimension cooling system with a Mega Mouthport as well as composite matrix internal reinforcement ensure excellent comfort whatever the weather.
Key features:
- ANGI crash sensor
- MIPS
- Highly-adjustable fit system
- MIPS-equipped.
- Easy-adjust, HairPort FSL II fit system with four height positions and micro-adjustable dial.
- 4th Dimension Cooling System with Mega Mouthport for enhanced comfort.
- Composite matrix internal reinforcement allows larger vents for greater cooling.
- Soft 4X DryLite webbing material won’t stretch out with sweat or water.
- Tri-Fix web splitter for improved comfort and ease of strap adjustments
- ANGI
The Specialized Propero III features innovative technology that ensures superb comfort and top quality safety.
Sizing Information
Specialized Helmets Unisex Size Guide
Find the perfect fit with this Specialized size guide.
Gambit, Mode, Tactic, Airnet, Echelon II, Evade, Prevail II Vent, Propero III, Align II
Circumference (ins) | Circumference (cm) | Size |
20 - 22 | 51 - 56 | S |
21 3/4 - 23 1/2 | 55 - 60 | M |
22 1/4 - 24 3/4 | 58 - 63 | L |
Ambush and Ambush Comp
Circumference (ins) | Circumference (cm) | Size |
20 - 22 | 51 - 56 | S |
21 1/4 - 23 | 54 - 58 | M |
22 1/2 - 24 | 57 - 61 | L |
23 1/4 - 24 3/4 | 59 - 63 | XL |
Chamonix
Circumference (ins) | Circumference (cm) | Size |
20 1/2 - 22 | 52 - 56 | S/M |
22 - 23 1/2 | 56 - 60 | M/L |
Centro
Circumference (ins) | Circumference (cm) | Size |
20 - 22 1/2 | 56 - 60 | Unisize |

"The mid-range Specialized Propero III with ANGI helmet provides a firm and comfortable fit alongside impressive ventilation and some innovative tech."

"The combination of superb safety features, ride performance, ease of use and good looks makes this a top player."
Parts, accessories and clothing delivery - FREE over £30
Delivery for parts, accessories and clothing is free over £30 and £2.99 below that. We have a selection of premium delivery services available, including next day, AM, Saturday, timed delivery and local pickup services. Mainland UK only, some remote and off-shore areas or areas of Scotland may incur a surcharge. Delivery options and lead time estimates will be provided in checkout.
Click & Collect
Our Click & Collect service offers all the benefits of shopping online, combined with an award-winning retail experience in one of our stores. Simply order your items, select Click & Collect and pick up your item at a time that's convenient for you - our stores are open 7 days a week. Best of all, the service is completely free.